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Release Notes for Cisco NAC Appliance,
Version 4.8(3)
Document Number OL-26233-01 Revised: October 24, 2014
Contents
These release notes provide the latest cumulative release information for Cisco® NAC Appliance,
Release 4.8(3). This document describes new features, changes to existing features, limitations and
restrictions (“caveats”), upgrade instructions, and related information. These release notes supplement
the Cisco NAC Appliance documentation included with the distribution. Read these release notes
carefully and refer to the upgrade instructions prior to installing the software.
•
Cisco NAC Appliance Releases, page 2
•
System and Hardware Requirements, page 2
•
Software Compatibility, page 12
•
New and Changed Information, page 15
•
Cisco NAC Appliance Supported AV/AS Products, page 18
•
Caveats, page 19
•
New Installation of Release 4.8(3), page 65
•
Upgrading to Release 4.8(3), page 67
•
Known Issues for Cisco NAC Appliance, page 86
•
Troubleshooting, page 94
•
Documentation Updates, page 100
•
Obtaining Documentation and Submitting a Service Request, page 101
Americas Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
Cisco NAC Appliance Releases
Cisco NAC Appliance Releases
Note
Cisco NAC Appliance Version
Availability
4.8(3) ED
January 18, 2012
4.8(2) ED
May 3, 2011
4.8(1) ED
January 31, 2011
4.8 ED
July 26, 2010
Cisco recommends you deploy Cisco NAC Appliance Release 4.8(3) in test network before deploying in
a production network.
System and Hardware Requirements
This section describes the following:
•
Licensing
•
Hardware Support
•
Supported Switches for Cisco NAC Appliance
•
VPN and Wireless Components Supported for Single Sign-On (SSO)
•
Additional Support Information
Licensing
You must obtain and install Cisco NAC Appliance product licenses for the Clean Access Manager
(CAM) and Clean Access Server (CAS) in order for your deployment to function. Install the CAM
product license in the CAM License Form to initially access the CAM web admin console. Once you can
access the CAM web console, upload the additional CAM HA license or CAS license(s) into the CAM
(under Administration > CCA Manager > Licensing) in order to add CASs to the CAM. An OOB CAS
license must be present to access the “OOB Management” module of the CAM. The Licensing page
displays the types of licenses present after they are added.
Note that both CAM and CAS product licenses are generated based on the eth0 MAC address of the
CAM. For High Availability (HA) pairs, you must generate an additional CAM HA license based on the
eth0 MAC addresses of both Primary and Secondary CAMs and install it on the CAM whether you are
adding a CAM HA pair or CAS HA pair.
For complete details on service contract support, obtaining new and evaluation licenses, legacy licenses
and RMA, refer to Cisco NAC Appliance Service Contract / Licensing Support.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
2
OL-26233-01
System and Hardware Requirements
Hardware Support
This section contains the following topics:
•
Release 4.8(3) and Hardware Platform Support
•
Release 4.8(3) and Cisco NAC Profiler
•
Supported Switches for Cisco NAC Appliance
Release 4.8(3) and Hardware Platform Support
FIPS Compliant
You can install or upgrade to Cisco NAC Appliance Release 4.8(3) on the following FIPS-compliant
Cisco NAC Appliance platforms:
•
Note
NAC-3315, NAC-3355, and NAC-3395
Release 4.8 and 4.7(0) are the only certified FIPS-compliant Cisco NAC Appliance releases.
Non-FIPS
You can install or upgrade to Cisco NAC Appliance Release 4.8(3) on the following Cisco NAC
Appliance platforms:
•
NAC-3315, NAC-3355, and NAC-3395
•
NAC-3310, NAC-3350, NAC-3390
Note
NAC-3310, NAC-3350, and NAC-3390 can be made FIPS-compliant by installing a field-replaceable
FIPS card as described in the Cisco NAC Appliance FIPS Card Field-Replaceable Unit Installation
Guide.
Note
Next generation Cisco NAC Appliance platforms (FIPS or non-FIPS Cisco NAC-3315, NAC-3355,
NAC-3395) support fresh installation of Release 4.8(3) or upgrade from Release 4.7(x), or 4.8(x) to
Release 4.8(3) only.
If the FIPS card in a CAM/CAS ceases to work correctly, make sure the card operation switch is set to
“O” (for operational mode), as described in FIPS and SSH, page 9. If the card is still not operational,
you will need to RMA the appliance with Cisco Systems and replace it with a new Cisco
NAC-3315/3355/3395 platform. Refer to the “Cisco NAC Appliance RMA and Licensing” section of
Cisco NAC Appliance Service Contract/Licensing Support for details.
NME-NAC-K9
•
See Cisco NAC Network Module, page 4
Additionally, Cisco NAC Appliance Release 4.8(3) provides substantial changes and enhancements for
product hardware support, installation, and upgrade:
•
A single product installation CD (.ISO) provides the option to perform CD installation on all
supported appliance platforms. The installation package detects whether a CAS, CAM or
SuperCAM was previously installed along with the software version.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
3
System and Hardware Requirements
•
To upgrade your CAM and CAS from Release 4.6(1), or 4.7(x), insert the same Cisco NAC
Appliance Release 4.8(3) installation CD-ROM (.ISO) into an existing Cisco NAC Appliance CAM
or CAS and perform a “clean” or “graceful” shutdown and reboot for the system. The upgrade option
from the CD-ROM automatically prompts you to choose whether you want to do a fresh Install or
Upgrade to Release 4.8(3). For more information, see Upgrading to Release 4.8(3), page 67 and
Known Issues with Web Upgrade in Release 4.1(3), 4.1(6), and 4.1(8), page 89.
•
The installation/upgrade CD does not execute if attempting to launch it on a non-supported platform.
Refer to Changes for 4.8(3) Upgrade, page 70 for additional details.
•
Legacy customers on non-appliance platforms who wish to upgrade to Release 4.8(3) need to
purchase a supported platform to install the Release 4.8(3) software. Refer to Migrating from
Customer-Supplied Hardware to Release 4.8(3) on a NAC-3310/3350/3390 Platform, page 68 for
additional details.
See also Features Optimized/Removed in Release 4.8(3), page 18 for additional information.
Note
You must run the same software version on all CAM/CAS appliances in your network.
Cisco NAC Network Module
The Cisco NAC Network Module for Integrated Services Routers (NME-NAC-K9) is a next generation
service module for the Cisco 2811, 2821, 2851, 3825, and 3845 Integrated Services Routers (ISRs) that
is supported starting from Cisco NAC Appliance, Release 4.1(2) and later.
In addition to the Cisco 2811, 2821, 2851, 3825, and 3845 Integrated Services Routers (ISRs), Cisco
NAC Appliance Release 4.8(3) supports Cisco 2911, 2921, 2951, 3925, and 3945 Integrated Services
Routers (ISRs).
The Cisco NAC network module has the same software features as the Clean Access Server on a
NAC-3300 series appliance, with the exception of high availability. NME-NAC-K9 does not support
failover from one module to another.
Note
NME-NAC-K9 supports fresh installation of Cisco NAC Appliance Release 4.8(3) or upgrade from
Release 4.6(1) or 4.8(x) to Release 4.8(3) only.
Note
Cisco NAC Network Module does not support Wireless Out-of-Band (OOB). The Wireless OOB feature
introduced in Release 4.5 only supports Layer 2 OOB Virtual Gateway deployments that require no IP
change. The NAC Network Module does not support this topology.
Cisco NAC Network Module supports L3 Wireless Out-of-Band (L3 OOB) introduced in Release 4.8(2)
For further details, including software installation instructions, refer to Getting Started with Cisco NAC
Network Modules in Cisco Access Routers.
Note
You must run the same software version (e.g. 4.8(3)) on all CAM/CAS appliances and CAS network
modules in your network.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
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System and Hardware Requirements
Release 4.8(3) and Cisco NAC Profiler
All Cisco NAC Appliance releases are shipped with a default version of the Cisco NAC Profiler Collector
component. Cisco NAC Appliance 4.8(3) release is shipped with Collector version 3.1.0.24 by default.
When upgrading the NAC Server to a newer Cisco NAC Appliance release, the current version of the
Collector is replaced with the default version of the Collector shipped with the Cisco NAC Appliance
release. For example, if you are running Release 4.8 and Collector 3.1.1, and you upgrade to NAC 4.8(3),
the Collector version gets downgraded to 3.1.0.24. You need to manually upgrade the 3.1.0.24 Collector
to 3.1.1 again and configure it after the NAC Server upgrade.
Refer to the Release Notes for Cisco NAC Profiler for software compatibility matrixes and additional
upgrade and product information.
Note
Cisco NAC Profiler and Cisco NAC Guest Server are not supported in FIPS-compliant deployments in
Release 4.7(0) and Release 4.8.
Configuring AD SSO
If there are multiple AD domain controllers and the CAM/CAS are upgraded to the release(not fresh
install), perform the following on the CAM.
Step 1
Navigate to /perfigo/control/bin/starttomcat.
Step 2
Search for CATALINA_OPTS.
Step 3
Add -DRMI_READ_TIME_OUT=180000 at the end of CATALINA_OPTS.
The above resets the parameter to 3 minutes. This parameter is dependent on the number of
domain controllers.
Note
Step 4
Note
Restart the CAM by entering the service perfigo stop and service perfigo start commands.
If you are applying this change to an existing HA pair, you must perform the above update on both the
HA-Primary and HA-Secondary CAM just as you would upgrade a pair of HA-enabled CAMs.
FIPS 140-2 Compliance
Note
Release 4.8 and 4.7(0) are the only certified FIPS-compliant Cisco NAC Appliance releases.
This section describes the following topics:
•
Overview, page 6
•
Capabilities, Dependencies, and Restrictions, page 7
•
FIPS Compliance in HA Deployments, page 8
•
Trusted Certificates and Private Key Management with FIPS, page 8
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
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System and Hardware Requirements
•
FIPS and SSH, page 9
•
FIPS and the Cisco NAC Appliance SWISS Protocol, page 9
•
IPSec Considerations with FIPS, page 9
•
FIPS and SNMP Configuration, page 10
•
FIPS and Cisco Secure ACS as RADIUS Authentication Provider, page 10
•
FIPS with VPN SSO, page 10
•
FIPS with AD SSO, page 10
Overview
Cisco NAC Appliance Release 4.7(0) introduced Federal Information Processing Standard (FIPS) 140-2
Common Criteria EAL2 compliance for new installations on new Cisco NAC-3315, NAC-3355, and
NAC-3395 hardware appliance platforms. Release 4.8 now also offers a field-replaceable FIPS card
upgrade for Cisco NAC-3310, NAC-3350, and NAC-3390 platforms. In order to provide FIPS
compliance in your Cisco NAC Appliance network, both CAM(s) and CAS(s) must be FIPS compliant.
Note
Cisco NAC Profiler and Cisco NAC Guest Server are not supported in FIPS-compliant deployments in
Release 4.8 and Release 4.7(0).
To enable FIPS 140-2 compliance in Cisco NAC Appliance, CAMs and CASs must have an encryption
card that handles the primary FIPS “level 2” compliance functions and manages private keys for the
system.
In Release 4.8 and 4.7(0), if the FIPS card in a Cisco NAC-3315/3355/3395 CAM/CAS ceases to work
correctly, make sure the card operation switch is set to “O” (for operational mode), as described in FIPS
and SSH, page 9. If the card is still not operational, you will need to RMA the appliance with Cisco
Systems and replace it with a new Cisco NAC-3315/3355/3395 platform. Refer to the “Cisco NAC
Appliance RMA and Licensing” section of Cisco NAC Appliance Service Contract/Licensing Support
for details. When you configure the replacement appliance, you must also ensure you configure it with
the same master password and have imported any required third-party certificates before connecting the
appliance to the network. For more information, see Release 4.8(3) and Hardware Platform Support,
page 3.
Note
Once the FIPS card is Operational on the CAM/CAS, the position of the electromagnetic switch (“O,”
“M,” or “I”) on the FIPS card does not impact the performance of the card again until you reboot either
the FIPS card or the appliance.
In addition, in order to ensure FIPS compliance across the entire Cisco NAC Appliance network, users
must use the latest Cisco NAC Agent version 4.8.0.35 or 4.7.1.15 on client machines connecting to the
Cisco NAC Appliance network. Although Cisco NAC Appliance Releases 4.8 and 4.7(0) support other
Cisco NAC Appliance Agent versions, users logging in with a different version of the Agent are not FIPS
compliant. For more information on the latest Cisco NAC Agent, see Cisco NAC Windows Agent
Version 4.8.3.9, page 16.
Note
Cisco NAC Appliance network administrators managing the CAM/CAS via web console and client
machine browsers accessing a FIPS-compliant Cisco NAC Appliance Releases 4.8 and 4.7(0) network
require TLSv1 in order to “talk” to the network, which is disabled by default in Microsoft Internet
Explorer Version 6. This option is enabled by default in Microsoft Internet Explorer versions 7 and 8 and
Release Notes for Cisco NAC Appliance, Version 4.8(3)
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System and Hardware Requirements
Mozilla Firefox has not shown this limitation. For details, see Disabling Administrator Prompt for
Certificate on IE 8 and 9, page 94.
Capabilities, Dependencies, and Restrictions
FIPS 140-2 compliance in Release 4.7(0) introduced the following capabilities, dependencies, and
restrictions:
1.
Key management in Release 4.7(0) and Release 4.8 is different than in non-FIPS Releases. Both
CAM and CAS store their private keys in the FIPS card. This private key is used for all Cisco NAC
Appliance PKI-based security solutions (i.e. SSL, SSH, and IPSec). In addition, both the CAM and
CAS store a master secret in the card. The master secret is used to secure important data, (like other
system passwords) stored in the database or on file systems. For more information, see Trusted
Certificates and Private Key Management with FIPS, page 8.
2.
JSSE (the equivalent of OpenSSL in Java) is used:
a. On the CAM and CAS during JMX publishing
b. On the CAS to send HTTP requests to the CAM when users are logging in
c. On the CAM when using LDAP over SSL for authentication/lookup providers
Note
3.
JSSE uses the FIPS card for SSL handshakes and data security.
APACHE/MOD_SSL handles HTTP/HTTPS requests from:
a. User client machines to the CAS
b. Administrators when using both the CAM and CAS web consoles
c. The CAS to the CAM when users are logging in
Note
4.
MOD_SSL uses the FIPS card during SSL handshakes only. That is, data security is performed
outside of the card.
IPSec secures:
a. CAM and CAS HA configurations
b. RADIUS authentication calls
c. VPN establishment and maintenance tasks
Note
IPSec uses the FIPS card for handshakes only. That is, data security is performed outside of the
card.
For more information, see IPSec Considerations with FIPS, page 9.
5.
SSH—Just like APACHE and IPSec, SSH uses the FIPS card during SSL handshakes only. For more
information, see FIPS and SSH, page 9.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
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System and Hardware Requirements
Note
When a FIPS card goes down, existing SSH web sessions still work; however, you cannot initiate
any new sessions. You are also unable to initiate new SSH sessions if the FIPS card goes into
error mode and/or has been erroneously left in Initialization state. In this case, the CAM/CAS
console port is the only access method.
6.
JGSS—JGSS is used for Kerberos and ADSSO. JGSS uses the FIPS card for securing data.
7.
SNMP V3—SNMP V3 uses the FIPS card for securing data. For more information, see FIPS and
SNMP Configuration, page 10.
8.
SWISS—SWISS uses the FIPS card for securing data. For more information, see FIPS and the Cisco
NAC Appliance SWISS Protocol, page 9.
9.
Cisco WLCs support RADIUS accounting over IPSec using pre-shared-keys (which are not FIPS
compliant) for IKE authentication, and do not support Certificate-based IKE authentication (which
is FIPS compliant).
10. When AD SSO is configured in the network, Windows XP client machines are not FIPS 140-2
compliant due to XP limitations. You cannot use AES for XP Kerberos, and 3DES encryption is not
supported on Windows XP client machines.
Note
Windows 2008 Server and the Windows Vista or Windows 7 operating systems are required to
support AD SS0 in a FIPS-compliant Cisco NAC Appliance deployment.
11. LDAP—You must use Windows 2008 when performing LDAP lookups using GSSAPI in a FIPS
140-2 compliant deployment.
12. NTP server authentication—The CAM and CAS both use MD5 authentication to verify and
authenticate Network Time Protocol (NTP) servers in Cisco NAC Appliance Release 4.8. MD5 is
not a FIPS 140-2 compliant protocol, therefore you must disable the NTP authentication feature in
Cisco NAC Appliance to ensure your network remains FIPS compliant.
FIPS Compliance in HA Deployments
To support FIPS 140-2 compliance, HA CAMs/CASs automatically establish an IPSec tunnel to ensure
all communications between the HA pair appliances remains secure across the network.
Trusted Certificates and Private Key Management with FIPS
In Cisco NAC Appliance Release 4.7(0) and Release 4.8, you can no longer export private keys and you
cannot generate CSRs using a FIPS compliant CAM/CAS. To adhere to strict FIPS compliance
guidelines, you can only import certificates from trusted third-party resources.
Cisco NAC Appliance uses two types of keys to support FIPS compliance: Private Keys and Shared
Master Keys. Both of these key types are managed and stored using the FIPS card installed in the
CAM/CAS. During installation, keys are created using the CAM/CAS setup utilities, the keys are then
moved to the card for security, and key-generation files and/or directories are then removed from the
CAM/CAS.
This enhancement affects the following pages of the CAM web console:
•
Administration > Clean Access Manager > SSL > x509 Certificate
•
Administration > Clean Access Manager > SSL > Trusted Certificate Authorities
•
Administration > Clean Access Manager > SSL > x509 Certification Request
Release Notes for Cisco NAC Appliance, Version 4.8(3)
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System and Hardware Requirements
FIPS and SSH
SSH connections between FIPS and non-FIPS CAMs/CASs are supported in Cisco NAC Appliance
Release 4.7(0) or Release 4.8. However, if the FIPS card in a CAM/CAS fails (or is inadvertently set to
the incorrect operational mode), you cannot use SSH to or from that appliance until the issue with the
card is resolved.
You can verify FIPS functionality on a CAM/CAS as follows:
a.
Ensure the FIPS card operation switch is set to “O” (for operational mode).
b.
Log into the CAM console interface as root.
c.
Navigate to the /perfigo/common/bin/ directory.
d.
Enter ./test_fips.sh info and verify the following output:
Installed FIPS card is nCipher
Info-FIPS file exists
Info-card is in operational mode
Info-httpd worker is in FIPS mode
Info-sshd up
Note
You can also verify whether or not the FIPS card is properly installed and enabled in the Clean Access
Manager by looking at the CAM Monitoring > Summary web console page. When FIPS is operational,
the following status is displayed:
Installed card in the system: nCipher
System is running in FIPS mode
FIPS and the Cisco NAC Appliance SWISS Protocol
To enhance network security and adhere to FIPS 140-2 compliance, Cisco NAC Appliance encapsulates
SWISS communications between client machines and CASs, including Discovery Packet
transmission/acknowledgement, authentication, and posture assessment results using the HTTPS
protocol.
In addition, the CAS SWISS mechanism has been enhanced to feature a new handler that uses 3DES
encryption for SWISS protocol functions. Because of these changes, older versions of Cisco NAC
Appliance Agents are not compatible with FIPS-compliant CAMs/CASs in Releases 4.8 and 4.7(0).
IPSec Considerations with FIPS
Cisco NAC Appliance Releases 4.8 and 4.7(0) use IPSec for the following purposes:
•
CAM and CAS HA pairs (both FIPS and non-FIPS modes)
•
CAS file synchronization between HA-Primary and HA-Secondary nodes
•
CAM and CAS RADIUS server authentication calls in FIPS mode
•
ASA (Adaptive Security Appliance)-CAS in FIPS mode
When setting up your Cisco NAC Appliance to use IPSec, you must ensure you can set up and import
certificates and configure IPSec tunnels between Cisco NAC Appliance and your external authentication
resources.
For Active Directory, LDAP, and Kerberos functions with FIPS-compliant CAMs/CASs, you must
ensure that hosts are running Windows 2008 Server to support secure authentication sessions between
external resources and FIPS-compliant appliances.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
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System and Hardware Requirements
FIPS and SNMP Configuration
Cisco NAC Appliance Release 4.7(0) and Release 4.8 provide support for SHA-1 and 3DES encryption
when configuring SNMP management on a FIPS-compliant CAM.
This enhancement affects the following page of the CAM web console:
•
OOB Management > Profiles > SNMP Receiver > SNMP Trap
FIPS and Cisco Secure ACS as RADIUS Authentication Provider
You can configure a FIPS 140-2 compliant external RADIUS Authentication Provider type by setting up
a secure IPSec tunnel between your Cisco NAC Appliance system and Cisco ACS 4.x in a Windows
environment running Windows Server 2003 or 2008.
For specific configuration instructions, see “Add a FIPS 140-2 Compliant RADIUS Auth Provider Using
an ACS Server” section of the Cisco NAC Appliance - Clean Access Manager Configuration Guide,
Release 4.8(3).
FIPS with VPN SSO
You can configure Cisco NAC Appliance to connect to and manage a Cisco ASA VPN Concentrator in
a FIPS 140-2 compliant deployment.
For specific configuration instructions, see the “Configure VPN SSO in a FIPS 140-2 Compliant
Deployment” section of the Cisco NAC Appliance - Clean Access Server Configuration Guide, Release
4.8(3).
FIPS with AD SSO
To maintain FIPS 140-2 compliance and support AD SSO, you must use 32-bit Windows Server 2008
with KTPass version 6.0.6001.18000, and client machines must run Windows Vista or Windows 7 with
Cisco NAC Agent version 4.7.1.15 or version 4.8.0.35 installed. For specific configuration instructions,
see the “Configure Active Directory for FIPS 140-2 Compliant AD SSO” section of the Cisco NAC
Appliance - Clean Access Server Configuration Guide, Release 4.8(3).
You cannot perform AD SSO in a FIPS-compliant network using Cisco Wireless LAN Controllers
because the WLCs do not support IPSec communication with the Cisco NAC Appliance network, so you
cannot provide RADIUS SSO capability to users in your FIPS 140-2 compliant environment.
Supported Switches for Cisco NAC Appliance
See Cisco NAC Appliance Switch and Wireless LAN Controller Support for complete details on:
•
Cisco switch models and Wireless LAN Controllers supported in a Cisco NAC Appliance Wireless
OOB environment
•
All switch models and NME service modules that support Out-of-Band (OOB) deployment
•
Switches/NMEs that support VGW VLAN mapping
•
Known issues with switches/WLCs
•
Troubleshooting information
Release Notes for Cisco NAC Appliance, Version 4.8(3)
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System and Hardware Requirements
VPN and Wireless Components Supported for Single Sign-On (SSO)
Table 1 lists VPN and wireless components supported for Single Sign-On (SSO) with Cisco NAC
Appliance. Elements in the same row are compatible with each other.
Table 1
VPN and Wireless Components Supported By Cisco NAC Appliance For SSO
Cisco NAC
Appliance
Version
VPN Concentrator/Wireless Controller
VPN Clients
4.5 and later
Cisco 5500 Series Wireless LAN Controllers
N/A
Cisco WiSM Wireless Service Module for the
Cisco Catalyst 6500 Series Switches
N/A
Cisco 2200/4400 Wireless LAN Controllers
(Airespace WLCs)1
N/A
Cisco ASA 5500 Series Adaptive Security
Appliances, Version 8.0(3)7 or later2
AnyConnect
Cisco ASA 5500 Series Adaptive Security
Appliances, Version 8.0(3)7 or later
•
Cisco SSL VPN Client
(Full Tunnel)
Cisco WebVPN Service Modules for Cisco Catalyst
6500 Series Switches and Cisco 7600 Series Routers
•
Cisco VPN Client (IPSec)
Cisco VPN 3000 Series Concentrators, Release 4.7
Cisco PIX Firewall
1. For additional details, see also Known Issues with Cisco 2200/4400 Wireless LAN Controllers (Airespace WLCs), page 91.
2. Release 4.5 and later supports existing AnyConnect clients accessing the network via Cisco ASA 5500 Series devices running
release 8.0(3)7 or later. For more information, see the Release Notes for Cisco NAC Appliance, Version 4.1(3), and
CSCsi75507.
Note
Only the SSL Tunnel Client mode of the Cisco WebVPN Services Module is currently supported.
Cisco WLCs do not support IPSec communication with the Cisco NAC Appliance network, so you
cannot provide RADIUS SSO capability to users in your FIPS 140-2 compliant environment.
For further details, see the Cisco NAC Appliance - Clean Access Manager Configuration Guide, Release
4.8(3) and the Cisco NAC Appliance - Clean Access Server Configuration Guide, Release 4.8(3).
Additional Support Information
Refer to Support Information for Cisco NAC Appliance Agents, Release 4.5 and Later for additional
details related to Windows/Mac OS X/Web Agent support.
Refer to Supported Hardware and System Requirements for Cisco NAC Appliance for additional
information on Cisco NAC Appliance hardware platforms and support information for Cisco NAC
Appliance 4.1(x) and earlier releases.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
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Software Compatibility
Software Compatibility
This section describes software compatibility for releases of Cisco NAC Appliance:
•
Release 4.8(3) CAM/CAS Upgrade Compatibility Matrix
•
Release 4.8(3) CAM/CAS/Agent Compatibility Matrix
•
Release 4.8(3) Agent Upgrade Compatibility Matrix
Release 4.8(3) CAM/CAS Upgrade Compatibility Matrix
Table 2 shows CAM/CAS upgrade compatibility. You can upgrade/migrate your CAM/CAS from the
previous release(s) specified to the latest release shown in the same row. When you upgrade your system
software, Cisco recommends you upgrade to the most current release available whenever possible.
.
Table 2
Release 4.8(3) CAM/CAS Upgrade Compatibility Matrix
Clean Access Manager 1
Clean Access Server 1, 2
Upgrade From:
To:
Upgrade From:
To:
4.8(2)
4.8(1)
4.8
4.7(x)
4.6(1)
4.8(3)
4.8(2)
4.8(1)
4.8
4.7(x)
4.6(1)
4.8(3)
1. Next generation Cisco NAC Appliance platforms (FIPS or non-FIPS Cisco NAC-3315, NAC-3355, NAC-3395) support fresh
installation of Release 4.8(3) or upgrade from Release 4.7(x) or 4.8(x) to Release 4.8(3) only. You can also install or upgrade
to Release 4.8(3) on the NAC-3310, NAC-3350, and NAC-3390 platforms, but they operate in non-FIPS mode only.
NAC-3310, NAC-3350, and NAC-3390 can be made FIPS-compliant by installing a field-replaceable FIPS card as described
in the Cisco NAC Appliance FIPS Card Field-Replaceable Unit Installation Guide. See Hardware Support, page 3 and
Changes for 4.8(3) Upgrade, page 70 for additional details.
2. The Clean Access Server is shipped with a default version of the Cisco NAC Profiler Collector. See Release 4.8(3) and Cisco
NAC Profiler, page 5 for details.
Release 4.8(3) CAM/CAS/Agent Compatibility Matrix
Table 3 lists Cisco NAC Appliance Manager/Server/Agent compatibility per supported release.
CAM/CAS/Agent versions displayed in the same row are compatible with one another. Cisco
recommends that you synchronize your software images to match those shown as compatible in Table 3.
For complete support information, including specific client machine operating systems supported with
specific Agent versions, refer to the Support Information for Cisco NAC Appliance Agents, Release 4.5
and Later.
Table 3
Release 4.8(3) CAM/CAS/Agent Compatibility Matrix
Clean Access
Manager 1,2
FIPS 140-2 Compliant
4.8
4.7(0)
Clean Access
Server 1, 2
Cisco NAC Appliance Agents 3
Windows
Mac OS X
Web Agent
4.8.0.35
4.7.1.15
N/A
N/A
4
4.8
4.7(0)
Release Notes for Cisco NAC Appliance, Version 4.8(3)
12
OL-26233-01
Software Compatibility
Table 3
Release 4.8(3) CAM/CAS/Agent Compatibility Matrix (continued)
Clean Access
Manager 1,2
Clean Access
Server 1, 2
English-Only Server
4.8(3)
Cisco NAC Appliance Agents 3
Windows
Mac OS X
Web Agent
4.8.3.9
4.8.2.1
4.8.1.5
4.8.0.35
4.8.3.594
4.8.2.591
4.8.2.590
4.8.1.584
4.8.0.569
4.8.3.1
4.7.4.2
4.7.3.2
4.7.2.10
4.7.1.511
4.7.1.15
4.7.3.522
4.7.2.507
4.7.1.506
4.7.0.2
4.6.2.113
4.6.0.3
English-Only Agent
4.8(3)
1. Next generation Cisco NAC Appliance platforms (FIPS or non-FIPS Cisco NAC-3315, NAC-3355, NAC-3395) support fresh
installation of Release 4.8(3) or upgrade from Release 4.7(x) or 4.8(x) to Release 4.8(3) only. You can also install or upgrade
to Release 4.8(3) on the NAC-3310, NAC-3350, and NAC-3390 platforms, but they operate in non-FIPS mode only.
NAC-3310, NAC-3350, and NAC-3390 can be made FIPS-compliant by installing a field-replaceable FIPS card as described
in the Cisco NAC Appliance FIPS Card Field-Replaceable Unit Installation Guide. See Hardware Support, page 3 and
Changes for 4.8(3) Upgrade, page 70 for additional details.
2.
Make sure that both CAM and CAS are of same version.
3. See Enhancements in Release 4.8(3), page 15 for details on each version of the Windows/Mac OS X/Web Agents.
4. Release 4.8 and 4.7(0) are the only certified FIPS-compliant Cisco NAC Appliance releases.
Release 4.8(3) Agent Upgrade Compatibility Matrix
Table 4 shows Cisco NAC Appliance Agent upgrade compatibility when upgrading existing versions of
the persistent Agents on clients after CAM/CAS upgrade.
Note
Auto-upgrade does not apply to the temporal Cisco NAC Web Agent, since it is updated on the CAM
under Device Management > Clean Access > Updates > Update.
For complete support information, including specific client machine operating systems supported with
specific Agent versions, refer to the Support Information for Cisco NAC Appliance Agents, Release 4.5
and Later.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
13
Software Compatibility
Table 4
Release 4.8(3) Agent Upgrade Compatibility Matrix
Cisco NAC Appliance Agent 2
Clean Access
Manager 1
Clean Access
Server 1
4.8(3)
4.8(3)
Upgrade From
Cisco NAC
Windows
Agent:
To Latest
Compatible
Cisco NAC
Windows
Agent:
Upgrade From
Cisco Mac OS
X Agent
To Latest
Compatible
Mac OS X
Agent
4.8.2.1
4.8.1.53, 4
4.8.0.35 3, 4
4.7.4.2
4.7.3.2
4.7.2.10 3, 4
4.7.1.5113, 4
4.7.1.15 5
4.6.2.113
4.8.3.9
4.8.2.591
4.8.2.590
4.8.1.584
4.8.0.569
4.7.3.522
4.7.2.507
4.7.1.506
4.7.0.2
4.6.0.3
4.8.3.594
1. Next generation Cisco NAC Appliance platforms (FIPS or non-FIPS Cisco NAC-3315, NAC-3355, NAC-3395) support fresh
installation of Release 4.8(3) or upgrade from Release 4.7(x) or Release 4.8(x) to Release 4.8(3) only. You can also install or
upgrade to Release 4.8(3) on the NAC-3310, NAC-3350, and NAC-3390 platforms, but they operate in non-FIPS mode only.
NAC-3310, NAC-3350, and NAC-3390 can be made FIPS-compliant by installing a field-replaceable FIPS card as described
in the Cisco NAC Appliance FIPS Card Field-Replaceable Unit Installation Guide. See Hardware Support, page 3 and
Changes for 4.8(3) Upgrade, page 70 for additional details.
2. See Enhancements in Release 4.8(3), page 15 for details on each version of the Windows/Mac OS X/Web Agent.
3. Cisco NAC Agent versions 4.7.1.511, 4.7.2.10, and 4.8.0.35 are the only Cisco NAC Appliance Agents that support Windows
7 operating systems. (Cisco NAC Agent version 4.7.1.511 does not support the Windows 7 Starter Edition operating system.)
4. For checks/rules/requirements, version 4.1.1.0 and later Windows Agents can detect “N” (European) versions of the Windows
Vista operating system, but the CAM/CAS treat “N” versions of Vista as their US counterpart.
5. To remain FIPS-compliant, users logging into Cisco NAC Appliance via AD SSO must run Windows Vista or Windows 7
and have Cisco NAC Agent version 4.7.1.15 or 4.8.0.35 installed on their client machine. Windows XP clients cannot perform
AD SSO in a FIPS 140-2 compliant network. See FIPS with AD SSO, page 10 for details.
Determining the Software Version
Clean Access Manager (CAM) Version
•
SSH or console to the machine and type: cat /perfigo/build
•
CAM web console: Administration > CCA Manager > Software Upload | Current Version
Clean Access Server (CAS) Version
•
SSH or console to the machine and type cat /perfigo/build
•
CAS web console (https://<CAS_eth0_IP_address>/admin):
Administration > Software Upload | Current Version
•
CAM web console: Device Management > CCA Servers > List of Servers > Manage [CAS_IP]
> Misc > Upgrade Logs | Current Version
Cisco NAC Appliance Agent Version (Windows, Mac OS X, Web Agent)
•
CAM web console: Monitoring > Summary
•
Agent taskbar menu: right-click About for Agent version; right-click Properties for AV/AS
software installed and Discovery Host (used for L3 deployments).
Release Notes for Cisco NAC Appliance, Version 4.8(3)
14
OL-26233-01
New and Changed Information
Cisco Clean Access Updates
•
CAM web console: Device Management > Clean Access > Updates > Summary
New and Changed Information
This section describes enhancements added to the following releases of Cisco NAC Appliance for the
Clean Access Manager and Clean Access Server.
Enhancements in Release 4.8(3)
•
Patch with Fix for Bash Vulnerability, page 15
•
Unmanage All Option for Switches, page 16
•
Cisco NAC Windows Agent Version 4.8.3.9, page 16
•
Support for Windows 8, page 16
•
Support for Internet Explorer 10, page 16
•
Mac OS X Agent Version 4.8.3.594, page 17
•
Support for Mac OS X 10.8, page 17
•
Support for iOS 6, page 17
•
Cisco NAC Web Agent Version 4.8.3.1, page 17
•
Support for Internet Explorer 10 on Windows 7, page 17
•
Support for Microsoft Active Directory, page 17
•
Features Optimized/Removed in Release 4.8(3), page 18
•
Supported AV/AS Product List Enhancements (Windows Version 91, Mac OS X Version 14),
page 18
Patch with Fix for Bash Vulnerability
You can download the patch to address the bash vulnerability in Cisco NAC Appliance from the
following URL:
http://software.cisco.com/download/navigator.html
•
Navigate to Security > Access Control and Policy > Network Admission Control > Cisco NAC
Appliance (Clean Access) > Cisco NAC Appliance 4.9 > Network Admission Control (NAC)
Software Patches-4.9.4.
•
Download and apply CSCur03364.tar.gz.
See Also CSCur03364, page 63.
Note
The patch can also be applied on NAC Appliance releases 4.9(3) and 4.9(4).
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
15
New and Changed Information
Unmanage All Option for Switches
In Cisco NAC Appliance release 4.8(3), the option Unmanage All has been included that can be used to
change all the managed ports to default port profile that was setup for a switch.
This feature affects the following page in the CAM web console:
•
OOB Management > Devices > Devices > List > Config[Switch_IP] > Ports > Manage > new
Unmanage All option.
Cisco NAC Windows Agent Version 4.8.3.9
Cisco NAC Appliance Release 4.8(3) introduces Cisco NAC Agent version 4.8.3.9.
Refer to Release 4.8(3) CAM/CAS/Agent Compatibility Matrix, page 12 for additional compatibility
details.
For details on Agent functionality, refer to the “Cisco NAC Appliance Agents” chapter of the Cisco NAC
Appliance - Clean Access Manager Configuration Guide, Release 4.8(3).
Support for Windows 8
Cisco NAC Windows Agent 4.8.3.8 supports Windows 8.
You can download the patch that supports Windows 8 from the following URL:
http://www.cisco.com/cisco/pub/software/portal/select.html?i=!y
•
Navigate to Security > Access Control and Policy > Network Admission Control > Cisco NAC
Appliance (Clean Access) > Cisco NAC Appliance 4.8 > Network Admission Control (NAC)
Software Patches.
•
Download and Install the Patch-CSCud24111-483.tar.gz file.
In Windows 8 Operating System, the Internet Explorer has two modes, Desktop and Metro. In the Metro
mode, the ActiveX plugins are restricted. You cannot download NAC Agent in the Metro mode. You
must switch to Desktop mode and then launch Internet Explorer to download NAC Agent.
Support for Internet Explorer 10
Cisco NAC Appliance Release 4.8(3) includes support for Internet Explorer 10.
If you are using Internet Explorer 10 on Windows 8 client, refer to the following before downloading the
NAC Agent.
Importing Self-Signed Certificate
If customers are using self-signed certificates for CAM, then you need to run Internet Explorer 10 in
Administrator mode to install these certificates.
Downloading Cisco NAC Agent
If you are not able to download Cisco NAC agent, check and enable the compatibility mode in Internet
Explorer 10.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
16
OL-26233-01
New and Changed Information
Enabling ActiveX Control
Cisco NAC appliances installs the Cisco NAC Agent and Web Agent via ActiveX control. In Internet
Explorer 10, the option to prompt for ActiveX controls is disabled by default. To enable this option in
Internet Explorer 10, perform the following:
Step 1
Go to Tools > Internet Options.
Step 2
Go to the Security tab and click Internet and Custom Level.
Step 3
Under ActiveX Controls and Plugins section, enable Automatic Prompting for ActiveX controls.
Mac OS X Agent Version 4.8.3.594
Cisco NAC Appliance Release 4.8(3) is bundled with Mac OS X Agent version 4.8.3.594.
Cisco Mac OS X Agent version 4.8.3.594 provides updated AV/AS support capabilities on Macintosh
client machines as described in Cisco NAC Appliance Supported AV/AS Products, page 18.
Support for Mac OS X 10.8
Mac OS X Agent version 4.8.3.594 supports Mac OS X 10.8 “Mountain Lion”. You need to download a
server patch to enable the support from the following URL:
http://software.cisco.com/download/release.html?mdfid=282855549&flowid=34712&softwareid=2825
62546&release=4.8.3&relind=AVAILABLE&rellifecycle=&reltype=latest
See Also CSCub01401, page 54.
Support for iOS 6
Cisco NAC Appliance Release 4.8(3) includes support for iOS 6.
Cisco NAC Web Agent Version 4.8.3.1
Cisco NAC Appliance Release 4.8(3) introduces Cisco NAC Web Agent version 4.8.3.1.
For details on Agent functionality, refer to the “Cisco NAC Appliance Agents” chapter of the Cisco NAC
Appliance - Clean Access Manager Configuration Guide, Release 4.8(3).
Support for Internet Explorer 10 on Windows 7
Cisco NAC Appliance Release 4.8(3) supports Internet Explorer 10 on Windows 7. When Internet
Explorer 10 is installed on Windows 7, to get full network access, you need to update to March 2013
Hotfix ruleset.
Support for Microsoft Active Directory
Cisco NAC Appliance Release 4.8(3) supports Microsoft Active Directory 2012 server with
2008/2008 R2 and 2012 functional levels.
Cisco NAC Appliance does not support Microsoft Active Directory 2012 server at 2003 functional level
for ADSSO. See CSCuh81091, page 54.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
17
Cisco NAC Appliance Supported AV/AS Products
Features Optimized/Removed in Release 4.8(3)
In Cisco NAC Appliance release 4.8(3), you can use a .tar.gz upgrade process similar to that used for
upgrading CAM/CAS appliances in earlier releases of Cisco NAC Appliance (like the process used in
Release 4.6(1), 4.7(2), and 4.8) instead of having to perform “in-place” upgrades via an .ISO image on
a CD-ROM, as is required to upgrade to Cisco NAC Appliance release 4.7(0) and 4.7(1). For more
information, see Upgrading to Release 4.8(3), page 67.
Note
You cannot use the Release 4.8(3) .ISO CD-ROM to perform an upgrade. You must use the .tar.gz
upgrade file method.
Support for Mac OS X 10.4 Removed
In Cisco NAC Appliance Release 4.8(3), support for Mac OS X 10.4 has been removed.
If you are using a client machine with Mac OS X 10.4, you need to upgrade it to Mac OS X 10.5 or later
to work with Cisco Mac OS X Agent 4.8.3.594.
Supported AV/AS Product List Enhancements (Windows Version 91, Mac OS X Version 14)
See Cisco NAC Appliance Supported AV/AS Products, page 18 for the latest AV/AS product charts.
Cisco NAC Appliance Supported AV/AS Products
The Cisco NAC Appliance Supported AV/AS Product List is a versioned XML file distributed from a
centralized update server and downloaded to the Clean Access Manager via Device Management >
Clean Access > Updates > Update. It provides the most current matrix of supported antivirus (AV) and
anti-spyware (AS) vendors and products per version of the Agent, and is used to populate AV/AS Rules
and AV/AS Definition Update requirements for Agents that support posture assessment/remediation.
You can access AV and AS product support information from the CAM web console under Device
Management > Clean Access > Clean Access Agent > Rules > AV/AS Support Info. For convenience,
this section also provides the following summary and product charts. The charts list which product
versions support virus or spyware definition checks and automatic update of client virus/spyware
definition files via the user clicking the Update button on the Agent.
Note
In some cases, the specific AV/AS vendor software requires the user to have administrator privileges on
the client machine to enable updates.
Windows 7/Vista/XP
For Windows 7/Vista/XP AV/AS support information on the Cisco NAC Agent (version 4.8.3.9) and
Cisco NAC Web Agent (version 4.8.3.1), see the Cisco NAC Appliance Release 4.8(3) Supported
Windows AV/AS Products document optimized for UTF-8 character display.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
18
OL-26233-01
Caveats
Mac OS X
For Mac OS X AV/AS support information on the Cisco Mac OS X Agent (version 4.8.3.594), see the
Cisco NAC Appliance Release 4.8(3) Supported Mac OS X AV/AS Products document optimized for
UTF-8 character display.
Note
Cisco recommends keeping your Supported AV/AS Product List up-to-date on your CAM (particularly
if you have updated the Windows Agent Setup/Patch version or Mac OS Agent) by configuring the
Update Settings under Device Management > Clean Access > Updates > Update to Automatically
check for updates starting from <x> every <y> hours.
Note
Where possible, Cisco recommends using AV Rules mapped to AV Definition Update Requirements
when checking antivirus software on clients, and AS Rules mapped to AS Definition Update
Requirements when checking anti-spyware software on clients. In the case of non-supported AV or AS
products, or if an AV/AS product/version is not available through AV Rules/AS Rules, administrators
always have the option of creating their own custom checks, rules, and requirements for the AV/AS
vendor (and/or using Cisco provided pc_ checks and pr_rules) through Device Management > Clean
Access > Clean Access Agent (use New Check, New Rule, and New File/Link/Local Check
Requirement). See the Cisco NAC Appliance - Clean Access Manager Configuration Guide, Release
4.8(3) for configuration details.
Note that Clean Access works in tandem with the installation schemes and mechanisms provided by
supported AV/AS vendors. In the case of unforeseen changes to underlying mechanisms for AV/AS
products by vendors, the Cisco NAC Appliance team will update the Supported AV/AS Product List
and/or Agent in the timeliest manner possible in order to support the new AV/AS product changes. In
the meantime, administrators can always use the “custom” rule workaround for the AV/AS product (such
as pc_checks/pr_ rules) and configure the requirement for “Any selected rule succeeds.”
Refer to Enhancements in Release 4.8(3), page 15 for additional details on Agent versions in this release.
Caveats
This section describes the following caveats:
Note
•
Open Caveats - Release 4.8(3), page 20
•
Resolved Caveats - Release 4.8(3), page 55
•
Resolved Caveats - Cisco NAC Agent Vers 4.8.3.9/Mac OS X Vers 4.8.3.594, page 63
If you are a registered cisco.com user, you can view Bug Toolkit on cisco.com at the following website:
http://www.cisco.com/cgi-bin/Support/Bugtool/home.pl
To become a registered cisco.com user, go to the following website:
http://tools.cisco.com/RPF/register/register.do
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
19
Caveats
Open Caveats - Release 4.8(3)
Table 5
List of Open Caveats (Sheet 1 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtr16957
No
Hub detection on CAT 6k switches blocks SNMP threads.
While roaming, random failures happen in OOB authentication.
CAM throws an error as "OOB client not found". This happens
because the SNMP traps are processed after a long time. As a result,
there is no CDL entry for the MAC, and the user has issues while
logging in.
Workaround Force the client to reauthenticate on WLC.
CSCtl02578
No
Nook color logging into web login prompts for agent - Add support.
Nook Color device gets prompted to download the agent when
logging into Clean Access web portal. This is due to an issue where
Nook presents a browser string that states it is running Mac OS X.
Workaround
CSCsl75403
No
1.
Disable the agent requirement for Mac OS X.
2.
Add a filter in for the Nook Color device MAC address.
MAC Agent does not detect VPN interface-fails MAC filters/L3
strict mode.
MAC filter does not work for Mac OS X client machines connected
to the network in VPN environment. L3 Strict mode does not allow
Mac user to login and throws error message as "Access to network is
blocked by the administrator."
Workaround
CSCts87316
No
1.
Use IP based filters for Mac OS X client machines in VPN
environment.
2.
Disable L3 strict mode on CAS
Cisco NAC Manager affected by CVE-2011-0997
This is a false alarm. CAM and CAS use static IPs only (configured
using 'service perfigo config' command). Any change in IP address
requires re-configuring the CAM and CAS and that again gives static
IP only.
CSCsy45807
No
Mac OS X Agent does not pop-up using EVDO/3G card.
Mac OS X Agent does not send discovery packets and does not pop
up a login window when connected to a 3G/EVDO network card.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
20
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 2 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtb44223
No
Mac Agent gets presented with incorrect login page and providers.
Mac agent is presented with providers from MAC_ALL login page,
not MAC_OSX login page.
Workaround Configure MAC_ALL page identically to MAC_OSX
page.
CSCsd03509
No
The Time Servers setting is not updated in HA-Standby CAM web
console
After updating the “Time Servers” setting in HA-Primary CAM, the
counterpart “Time Servers” setting for the HA-Standby CAM does
not get updated in the web console even though the “Time Servers”
setting is updated in the HA-Standby CAM database.
Workaround Reboot the HA-Standby CAM or perform a HA-CAM
failover to make the HA-Standby CAM become HA-Active.
CSCsg07369
No
Incorrect “IP lease total” displayed on editing manually created
subnets
Steps to reproduce:
1.
Add a Managed Subnet having at least 2500+ IP addresses (for
example 10.101.0.1/255.255.240.0) using CAM web page
Device Management > Clean Access Servers > Manage [IP
Address] > Advanced > Managed Subnet.
2.
Create a DHCP subnet with 2500+ hosts using CAM web page
Device Management > Clean Access Servers > Manage [IP
Address] > Network > DHCP > Subnet List > New.
3.
Edit the newly created subnet using CAM web page Device
Management > Clean Access Servers > Manage [IP Address]
> Network > DHCP > Subnet List > Edit.
4.
Click Update. The CAM displays a warning informing the
administrator that the current IP Range brings IP lease total up
to a number that is incorrect. The CAM counts the IP address in
the subnet twice, creating the incorrect count.
The issue is judged to be cosmetic and does not affect DHCP
functionality.
CSCsg66511
No
Configuring HA-failover synchronization settings on Secondary
CAS takes an extremely long time
Once you have configured the Secondary CAS HA attributes and
click Update, it can take around 3 minutes for the browser to get the
response from the server. (Configuring HA-failover synchronization
on the Primary CAS is nearly instantaneous.)
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
21
Caveats
Table 5
List of Open Caveats (Sheet 3 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsh77730
No
Agent locks up when greyed out OK button is pressed
The Agent locks up when the client machine refreshes its IP address.
This only occurs when doing an IP release/renew, so the CAS must
be in an OOB setup.
If the Automatically close login success screen after <x> secs
option is enabled and the duration set to 0 (instantaneous) in the
Clean Access > General Setup > Agent Login page and the user
clicks on the greyed out OK button while the IP address is
refreshing, the Agent locks up after refreshing the IP address. The IP
address is refreshed and everything else on the client machine works,
but the user cannot close the Agent without exiting via the system
tray icon, thus “killing” the Agent process.
Workaround Either uncheck the box or set that timer to a non-zero
value. If it is set to anything else, and the user hits the greyed out OK
button while the IP is refreshing, then the Agent window closes
successfully.
CSCsi07595
No
DST fix will not take effect if generic MST, EST, HST, etc. options
are specified
Due to a Java runtime implementation, the DST 2007 fix does not
take effect for Cisco NAC Appliances that are using generic time
zone options such as “EST,” “HST,” or “MST” on the CAM/CAS UI
time settings.
Workaround If your CAM/CAS machine time zone setting is
currently specified via the UI using a generic option such as “EST,”
“HST,” or “MST.” change this to a location/city combination, such as
“America/Denver.”
Note
CSCsj46232
No
CAM/CAS machines using time zone settings specified by
the “service perfigo config” script or specified as
location/city combinations in the UI, such as
“America/Denver” are not affected by this issue.
Agent should NOT pop-up during CAS HA failover
Agent pops up during CAS HA failover. The user ISD still appears
in the Online User List and the client machine still appears in the
Certified Devices List.
Workaround The user simply needs to close the Agent dialog and it
does not pop up again.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
22
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 4 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsk55292
No
Agent not added to system tray during boot up
When the Agent is installed on a Windows client, the Start menu is
updated and Windows tries to contact AD (in some cases where the
AD credentials are expired) to refresh the Start menu.
Due to the fact that the client machine is still in the Unauthenticated
role, AD cannot be contacted and an approximately 60 second
timeout ensues, during which the Windows taskbar elements (Start
menu, System Tray, and Task Bar) are locked. As a result, the Agent
displays a “Failed to add Clean Access Agent icon to taskbar status
area” error message.
Workaround There are two methods to work around this issue:
CSCsl13782
No
•
Allow AD traffic through the CAS for clients in the
Unauthenticated role.
•
Try to start the Agent manually after the install and auto load
process fails.
Microsoft Internet Explorer 7.0 browser pop-ups on Windows Vista
launched from the Summary Report appear behind the Summary
Report window
This is also seen when you click on the Policy link in the Policy
window. This issue appears on Vista Ultimate and Vista Home, but is
not seen with Firefox or on Internet Explorer versions running in
Windows 2000 or Windows XP.
Workaround You can click on the new item on the Windows status bar
to bring the new dialog box or window in front of the Cisco NAC
Web Agent Summary report.
Note
CSCsl17379
No
This problem only happens when a Google tool bar is
installed and enabled in Internet Explorer.
Multiple Agent pop-ups with Multi NIC in L2 Virtual Gateway OOB
role-based VLAN
The user sees multiple Agent login dialogs with two or more active
NICs on the same client machine pointing to the Unauthenticated
network access point (eth1 IP address).
After the first Agent pops up and the user logs in, a second Agent
login dialog pops up. If the user logs in to this additional Agent
instantiation there are now two entries for the same system with both
MAC addresses in the CAM’s Certified Device List and Online Users
List.
Workaround The user can manually Disable Agent login pop-up after
authentication.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
23
Caveats
Table 5
List of Open Caveats (Sheet 5 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsl40812
No
The Refresh Windows domain group policy after login option is
not functioning for Cisco NAC Web Agent
(It is working fine with the Clean Access Agent.)
This scenario was tested configuring a GPO policy for a Microsoft
Internet Explorer browser title. The browser was not refreshed as
expected after login in using the Web Agent.
CSCsl88429
No
User sees Invalid session after pressing [F5] following Temporary
role time-out
When a user presses [F5] or [Refresh] to refresh the web page after
the Agent Temporary role access timer has expired, the user sees an
“Invalid” session message. If the user then attempts to navigate to the
originally requested web address, they are prompted with the web
login page again and are able to log in.
CSCsl88627
No
Description of removesubnet has “updatesubnet” in op field
The removesubnet API function description has “updatesubnet”
listed in its operations field. The description should read
“removesubnet.”
CSCsm20254
No
CAS duplicates HSRP packets with Cisco NAC Profiler Collector
Modules enabled.
Symptom HSRP duplicate frames are sent by CAS in Real-IP
Gateway with Collector modules enabled. This causes HSRP issues
and the default gateway to go down.
Conditions Real-IP Gateway and Collector modules enabled on a
CAS with ETH0 and or ETH1 configured for NetWatch.
Workaround Do not configure the CAS' ETH0 trusted interface or
ETH1 untrusted interface in the NetWatch configuration settings for
the CAS Collector. It is not a supported configuration.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
24
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 6 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsm61077
No
ActiveX/Java applet fails to refresh the IP address on Vista with User
Account Control (UAC) turned on
When logged in as a machine admin on Vista and using web login
with IP refresh configured, IP address refresh/renew via ActiveX or
Java will fail due to the fact that IE does not run as an elevated
application and Vista requires elevated privileges to release and
renew an IP address.
Workaround In order to use the IP refresh feature, you will need to:
1.
Log into the Windows Vista client as an administrator.
2.
Create a shortcut for IE on your desktop.
3.
Launch it by right-clicking the shortcut and running it as
administrator. This will allow the application to complete the IP
Refresh/Renew. Otherwise, the user will need to do it manually
via Command Prompt running as administrator.
Note
This is a limitation of the Windows Vista OS.
Alternatively, the Cisco NAC Web Agent can be used with no posture
requirements enabled.
See also Known Issue for Windows Vista and IP Refresh/Renew,
page 91.
CSCso49473
No
“javax.naming.CommunicationException” causes no provider list
ADSSO with LDAP Lookup
If the LDAP connection to Active Directory fails during the lookup
process (because the lookup takes a long time or the connection is
suddenly lost), the Agent does not receive the list of authentication
providers from the CAS. As a result, the user is presented with a
blank provider list.
LDAP server fails to respond due to network connectivity failure or
a long directory search. The failure must occur after communication
to the LDAP server has begun.
Note
There is no known workaround for this issue.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
25
Caveats
Table 5
List of Open Caveats (Sheet 7 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCso50613
No
Mac OS X Agent DHCP refresh fails if dhcp_refresh file does not
exist
DHCP refresh will fail with no notice (to the user or to the logs) if
the dhcp_refresh file does not exist. The dhcp_refresh tool is
required for all versions of Mac OS X Agents, so it always fails if the
dhcp_refresh tool is missing regardless the Mac OS version.
Workaround There are three ways to work around this issue:
CSCsr52953
No
1.
Reinstalling the Mac OS X Agent automatically reinstalls the
missing dhcp_refresh file.
2.
Users can sign on to Cisco NAC Appliance via web login. The
Java applet installs the dhcp_refresh tool if the Install DHCP
Refresh tool into Linux/MacOS system directory option is
checked under User Page > Login Page > Edit > General.
3.
When using the Apple Migration Assistant, the user can try to
include /sbin/dhcp_refresh in the migration list.
RMI error messages periodically appear for deleted and/or
unauthorized CASs in CAM event logs
Clean Access Servers connected to a CAM can periodically appear
as “deleted” or “unauthorized” in the CAM event logs even though
the CAS is functioning properly and has not experienced any
connection issues with the Clean Access Manager. Error message
examples are:
•
“SSL Communication 2008-07-23 00:31:29
SSLManager:authorizing server failed CN=10.201.217.201,
OU=Perfigo, O=Cisco Systems, L=San Jose, ST=California,
C=US”
•
“SSL Communication 2008-07-23 00:31:29
RMISocketFactory:Creating RMI socket failed to host
10.201.217.201:java.security.cert.CertificateException:
Unauthorized server CN=10.201.217.201, OU=Perfigo,
O=Cisco Systems, L=San Jose, ST=California, C=US”
Workaround
•
Reboot the CAS and wait for the CAM to re-establish
connection.
•
Reboot the CAM after deleting and removing the CAS from the
Authorized CCA Server list using the CAM Device
Management > CCA Servers > Authorization admin web
console page.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
26
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 8 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsu47350
No
Invalid version number displayed in CAM backup snapshot web page
When the administrator navigates to another page in the CAM web
console during the backup snapshot process, the resulting snapshot
version number is invalid.
CSCsu63247
No
DHCP IP refresh not working for some Fedora core 8 client
machines
DHCP IP refresh does not work on Fedora core 8 clients logging in
to a Layer 3 Real-IP Gateway CAS using the current version of the
Java applet. As a result, Fedora core8 clients must use web login to
gain access to the Cisco NAC Appliance network.
Note
CSCsu78379
No
There is no known workaround for this issue
Bandwidth settings for Receiver CAM roles should not change after
Policy Sync
Steps to reproduce:
1.
Create role on Master CAM, r1
2.
Edit Upstream and Downstream Bandwidth fields of r1 to equal
1Kbps
3.
Create role on Receiver CAM, r2
4.
Edit Upstream and Downstream Bandwidth fields of r2 to equal
2 Kbps
5.
Select role-based Master Policies to Export and perform manual
sync
6.
Upstream and Downstream Bandwidth fields for role r1 on
Receiver CAM are changed to -1 (not 2 Kbps and not 1 Kbps).
Note
CSCsu84848
No
Receiver's Up/Down Kbps, Mode, Burst should either not
change or should be the same as the Master.
CAM should set the switch port to Authentication VLAN before
removing from OUL and DCL
The CAM should set the switch port to the Authentication VLAN
before removing the user from Online Users List and Discovered
Client List when the Switch or WLC entry is deleted from the CAM.
Workaround Bounce the switch port to clear the OUL and DCL.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
27
Caveats
Table 5
List of Open Caveats (Sheet 9 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsv18261
No
HA Failover database sync times out in event log after reboot
In Cisco NAC Appliance Release 4.5, the CAM HA database copy
function times out when the active CAM fails over and becomes the
standby CAM. (Event log entries show that the database copy
function times out.) This situation arises when the inactive CAM
comes up and attempts to copy the database from the active CAM,
but the database is still locked by the [now standby] CAM. This issue
is not seen during normal operation and database sync because the
entries are copied in real time.
Note
CSCsv20270
No
In Cisco NAC Appliance releases prior to 4.5, there is no
timeout function, and the database sync takes less time to
complete because the CAM does not lock the database or
verify the copy function.
Conflicting CAM’s eth1 HA heartbeat address with Release 4.5.0
after upgrade
The perfigo service cannot be started on the standby CAM because
both the eth1 interface of HA CAMs have the same IP address: either
192.168.0.253 or 192.168.0.254.
This happens in an HA setup when one of the CAMs is upgraded
from Release 4.0(x) to 4.5 and the other CAM is fresh CD installed.
Workaround Change to use the manual setting for eth1 on the fresh
CD installed node or re-apply the HA config on the upgraded node.
CSCsv22418
No
CAS service IP not reachable after standby reboot due to race
condition
The Active CAS's service IP become unreachable after standby CAS
reboot.
In a rare race condition, the standby CAS temporarily becomes active
for very short period of time after reboot.
Workaround
1.
Increase the “Heartbeat Timeout” value from the recommended
15 seconds to 30 seconds.
2.
Or, run the heartbeat interface on Interface 3 (eth2 or eth3).
Release Notes for Cisco NAC Appliance, Version 4.8(3)
28
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 10 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsv78301
No
VPN SSO login does not work with VPN in managed subnet after
upgrade to Cisco NAC Appliance Release 4.5
Prior to Release 4.5, the Clean Access Server associates the client
with the VPN IP address and VPN Concentrator’s MAC address after
the first login. From there, the SWISS protocol only checks the IP
address from the Agent and reports back to the Agent that the client
is logged in (regardless of whether the client is connected via Layer 2
or Layer 3).
In Release 4.5, the SWISS protocol checks the MAC address for
Layer 2 clients, but the MAC address reported by the Agent (which
is the real client MAC address) is different from the one the CAS gets
for the client (the VPN concentrator MAC address). As a result, the
SWISS protocol tells the Agent that the client machine is not logged
in (due to the different MAC addresses recorded) and the Agent
launches the login dialog repeatedly, never able to complete login.
Workaround Remove the subnet making up the client machine
address pool from the collection of managed subnets and create a
Layer 3 static route on the CAS untrusted interface (eth1) with VPN
concentrator’s IP address as the gateway for the VPN subnet using
the CAM web console Device Management > CCA Servers >
Manage [CAS_IP] > Advanced > Static Routes page.
CSCsv92867
No
DB conversion tool (Latin1 to UTF8)-iconv cannot work with
&#8224; format
Release 4.5 and earlier Clean Access Managers with foreign
characters in the database cannot be upgraded to Release 4.6(1) and
later.
Workaround To upgrade from Release 4.1(6) or 4.5:
•
Perform a fresh install of Release 4.6(1) or later (recommend).
•
Remove any foreign characters from the database prior to
upgrade.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
29
Caveats
Table 5
List of Open Caveats (Sheet 11 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsw39262
No
Agent cannot be launched when switching between users in Vista
The Cisco NAC Agent does not support Windows Fast User
Switching. The effect is that the primary user is the only user that:
•
Can log into the Clean Access Server and based on the level of
authentication will dictate the system's access to the network.
•
Will see the NAC Agent tray icon.
•
Will be able to re-authenticate if kicked off the network via the
Clean Access Server.
Note
This does not impact client machines that are part of a
Windows Domain. It also does not impact users who log out
before logging in as another user.
Workaround Logging out the first user or closing the Cisco NAC
Agent before Fast Switching eliminates this problem.
CSCsw45596
No
Username text box should be restricted with max no of characters
The Username text box is presently taking the characters such that
the total size is ~5kb. It is better to have the upper bound for the
Username text box to hold the number of characters that it can take.
CSCsw67476
No
Mac OS X Agent upgrade cannot be restarted once stopped
User is not able to log in again (no agent screen or icon available)
when they cancel the Mac OS X Agent upgrade process.
Note
This issue has been observed when upgrading from Release
4.5 to 4.6(1) and later.
Workaround Manually start the agent which then started the upgrade
portion.
CSCsw88911
No
Mac Agent freezes on login dialog, but remains operational
The tray icon of a Mac OS X Agent logged into a Cisco NAC
Appliance OOB deployment shows Click - Focus then Click again
and is hung (looks like logging in).
Workaround Operationally, everything is running normally (the
machine is OOB and logged in per CAM and client) just the user
interface is locked up.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
30
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 12 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsx05054
No
DHCP does not work with IGNORE fallback policy and CAS
Failover
If CAS Fallback policy is set to IGNORE and the CAM becomes
unreachable from CAS, the CAS blocks all traffic and CAS DHCP
stops working.
Workaround Setting the CAS Fallback policy to “Allow All” or
“Block All” solves the issue. Also, if you can ensure that the active
CAS does not fail over when CAM is unreachable, this situation
should not happen.
CSCsx18496
No
Cisco Log Packager crashes on XP Tablet PC with Restricted User
credentials
CSCsx29191
No
Mac OS X Agent has no ‘APPLE’+TAB presence
When using the Mac OS X Agent, the GUI focus can get lost and is
hard to regain. This issue was observed during upgrade.
Workaround Using hot corners to show all applications. With this
tool, users can find the Agent and continue the process.
CSCsx35438
No
Clean Access Manager read timeout reached when deleting many
DHCP IPs at once
After upgrading to or installing Release 4.1(8) and deleting hundreds
of DHCP IPs at once, the Clean Access Server becomes
unmanageable. This issue affects Clean Access Servers configured
as a DHCP server on which the administrator tries to delete more
than 800 DHCP IPs at once.
Workaround Please see Known Issue with Mass DHCP Address
Deletion, page 88.
CSCsx35911
No
Mac OS X Agent does not pop up for login and click-focus does not
get user’s attention
When the user moves from a non-Cisco NAC Appliance network to
a Cisco NAC Appliance network, the Agent login dialog does not
automatically appear. Click-focus can resolve the issue, but the is not
generally obvious to the user. The result of this issue is that users
would likely be stuck in the authentication network and/or assigned
to a restricted role for the duration of their session.
Workaround Click on the upper right icon that is saying click focus
and then login.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
31
Caveats
Table 5
List of Open Caveats (Sheet 13 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsx37073
No
Cisco NAC Agent does not pop-up if authentication server name is \\
Steps to reproduce:
1.
Create a Kerberos authentication server named \\ in addition to
Local DB.
2.
Go to Login Page > Content and check Provider Label, Local
DB, \\ (def provider).
3.
Let the Cisco NAC Agent pop-up. User sees \\ and Local DB as
Server options. (This is as expected.)
4.
Go to Login Page > Content and uncheck Local DB.
5.
Let the Cisco NAC Agent pop-up again. This time, user sees
only the \\ Server option. (This is also as expected.)
6.
Go to User Management > Auth Servers and delete \\.
7.
Close the Cisco NAC Agent window, which does not pop-up
again.
Repeat the above steps with authentication server named
“myKerberos” instead of \\. The CAM returns a “Clean Access
Server is not properly configured. Please contact your administrator
if the problem persists” error message.
Workaround Avoid non-alphabetic naming conventions when
configuring authentication servers in Cisco NAC Appliance.
CSCsx45051
No
Agent may proceed with AV/AS auto remediation while it's not
supported
For an AV/AS Definition Update Requirement Type with Automatic
Remediation Type and Antivirus/Anti-Spyware Vendor Name
configured as ANY, when the client fails the requirement, the Agent
should automatically launch the AV (or AS) update on the AV
product for which the Agent supports live update. If live update is not
supported, the Agent should prompt the user to perform manual
remediation. With this issue, the Agent may proceed with auto
remediation on a product for which the Agent does not support live
update. As a result, auto remediation will fail, and the agent will
prompt user to do manual remediation.
Note
This issue is observed with MS Live One 2.x. Auto
Remediation fails when configured for MS Live One 2.x.
Workaround Remediate AV manually while in the temporary role.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
32
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 14 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsx49160
No
Cisco NAC Agent shows one less authentication provider if one of
the provider names is \
Steps to reproduce:
1.
Create a Kerberos authentication server called my_krbr.
2.
Create a login page and check the Local DB and my_krbr (def
provider) Provider Labels.
3.
Let the Cisco NAC Agent pop-up. Both my_krbr (def provider)
and the Local DB provider options are available.
4.
Go to the list of Authentication Servers and rename my_krbr to \.
5.
Go to the Login page. \ appears as the new Kerberos name.
6.
Close the Cisco NAC Agent and let it automatically pop-up
again.
This time, the authentication provider list only shows Local DB—\
is missing.
Workaround Avoid non-alphabetic naming conventions when
configuring authentication servers in Cisco NAC Appliance.
CSCsx52263
No
NAC Appliances always assume USA keyboard layout
When connected via Keyboard and Monitor, if a keyboard with
layout other than US layout is used, the Cisco NAC Appliances do
not recognize the keyboard and it is possible to erroneously enter
different characters.
Workaround Use a US layout keyboard or ensure that you know the
key mapping if you are connecting a keyboard of different layout.
CSCsy32119
No
Cisco NAC Appliance CAM/CAS need ability to set port
speed/duplex manually
There have been instances where switch ports are not negotiating the
same as other ports on the same appliance. This is inefficient since
the ports in question do not necessarily use the highest possible
speed. In addition, there could be collisions, FEC, and errors on a
port if there is a mismatch.
Note
CSCsz19346
No
There is no known workaround for this issue.
Korean log packager GUI translations/buttons are garbled & some
missing
Workaround Some of the buttons are still readable. Click Collect
Data > Locate File and then click Exit.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
33
Caveats
Table 5
List of Open Caveats (Sheet 15 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsz19912
No
Log Packager CiscoSupportReport file shows ##### in place of
system info
The system logs created by the log packager are showing #####
instead of actual data, as in the following examples:
04/23/2009 10:49:22 W32Time (ID=0x825a0083): NtpClient#
'CCAVPN-AD'# DNS ## ### ## ## #### ### ### ### #### #####.
NtpClient# 15# ## ## #### # ### ### ### # ## ###. ##: ###
#### ####. (0x80072AF9).
04/23/2009 10:49:21 W32Time (ID=0x825a0083): NtpClient#
'CCAVPN-AD'# DNS ## ### ## ## #### ### ### ### #### #####.
NtpClient# 15# ## ## #### # ### ### ### # ## ###. ##: ###
#### ####. (0x80072AF9).
This issue occurs on Japanese, Korean, and Chinese systems using
Cisco Log Packager.
Note
CSCsz38970
No
There is no known workaround for this issue. Log Packager
is still functioning, but it is missing some non-critical system
troubleshooting information.
Accessibility: login displays not announced
After you log into Windows, you see the ADSSO display and then
the local corporate display. JAWS does not announce the Cisco NAC
Agent displays.
Note
This issue has been observed in a deployment where JAWS
is set to run at system startup.
Workaround You have to select the Cisco NAC Agent from the
taskbar to have the Agent display announced.
CSCsz48847
No
Accessibility: after successful log-in, JAWS is still on Cisco NAC
Agent page
JAWS stays on The Cisco NAC Agent window even though no Agent
window is displayed.
Workaround Press the Windows key to go back to the Windows
desktop.
CSCsz49147
No
Accessibility: JAWS does not announce installer after upgrade
During upgrade of the Cisco NAC Agent, the MS installer window is
not announced.
Note
This does not impact the upgrade process.
Workaround A blind user will need to check the running applications
in the Windows taskbar.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
34
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 16 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsz55538
No
IP refresh message shows up in L3OOBRIP with IP Un-numbered
scenario
When L3OOBRIP with IP un-numbered is configured, the IP refresh
message shows up even if IP refresh does not happen.
Workaround In the CAM web console, go to Profiles > SNMP
Receiver > Advanced Settings. Enter “0” in the DHCP Release
Delay and DHCP Renew Delay fields.
CSCsz83270
No
Agent file download fails at lower speed WAN links between CAS
and CAM
When the Agent is uploaded to the CAM, the .tar file gets partially
downloaded and removed several times on CAS before it is
successfully downloaded and its contents unpacked. As a result the
client does not pop-up for a long time for upgrade or fresh install
from the Cisco NAC Appliance web login page.
This happens during agent upgrade or download from web page
when CAS and CAM are separated by a WAN link
(512kbps/256kbps).
Workaround If agent does not get downloaded for a long time,
remove the contents of
/perfigo/access/apache/www/perfigo_download to start the
download of the file.
Note
CSCsz85892
No
Problem usually corrects itself after a while, but if it does
not, Cisco recommends following this workaround.
Web login display Guest ID instead of Username
Steps to reproduce:
1.
Add a Kerberos auth server named “k1.”
2.
Enable the Local DB and “k1” providers on the Login Page, and
make “k1” the default provider.
3.
Open a browser and check that Username is there and “k1” is the
default provider.
4.
Delete “k1” from the roster of Auth Servers.
5.
Open another browser and note that the user name is now “Guest
ID.”
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
35
Caveats
Table 5
List of Open Caveats (Sheet 17 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCsz92761
No
CAM GUI and publishing behavior during DB restore
When a CAM snapshot is restored from a database, the CAM web
console times out, and once refreshed, shows the associated CAS is
offline as a result of triggering a database restoration.
This issue occurs when the CAM and CAS are connected via WAN
links (T1/256k/512k) with several CASs experiencing at least 400ms
delay.
Note
After the CAM completes its parallel connection at the end
of the database restoration, it starts to publish to many of the
CASs via serial connection.
Workaround DBrestore happens and CAS do get connected and
publishing completed.
CSCta12544
No
Server communication error upon web and Agent login
This issue can occur when a brand new Release 4.5 or later CAS is
connected to a CAM pair that has been upgraded from an older
release of Cisco NAC Appliance to Release 4.5 or later, resulting in
unreliable communication between the CAM HA pair and the new
CAS.
CSCta19323
No
Memory for crash kernel message seen during 4.7.0 CD install
The message is benign, it is displayed when memory is not
configured/allocated for a crash kernel to aid in crash dump. This is
displayed by Red Hat and CentOS 5 releases while booting on any
system.
CSCta32189
No
Group mapping cannot be done if Class attribute data is big
When the ASA authenticates the VPN clients using LDAP and when
the ASA does LDAP group mapping, the group information is sent
in the class attribute of the accounting packet. This information is
used by NAC for doing group mapping based on the class attribute,
which fails while performing VPN SSO.
CSCta35732
No
Deleting subnet filters causes CASs to disconnect
When you delete the subnet filter one after another from the CAM,
the web console slows down and looses connection to the associated
CAS.
The CAM connects to all the CASs every few minutes via serial
interface and checks for heartbeats. If a CAS goes offline, the CAM
tries to connect to the CAS to resume connection. However, the wait
time depends on the number of CASs attached to the CAM.
Note
After a few minutes, CASs come back online.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
36
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 18 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCta35741
No
Agent not Popping up for First time for TLS not enabled on IE 6.0
If TLS 1.0 is not enabled on Microsoft Internet Explorer browsers
when the user launches the Cisco NAC Agent in a FIPS 140-2
compliant network, the Agent dialog/login screen does not appear.
Workaround The user must Exit the Cisco NAC Agent using the
Windows Systray icon and launch the Agent again.
CSCta72210
No
Proxy exception error misleading
If CAS is accessed using proxy server, error message is displayed
prompting the user to check the proxy settings of the browser.
CSCta97229
No
Collector Modules show “Stopping” instead of “Stopped” in Profiler
UI
This issue happens when the administrator manually stops the
Profiler Collector.
Workaround Services are actually stopped. You can enter service
collector status
CSCtb30587
No
in the CAS CLI to verify the current state.
Clearing CAM CDL upon intra-subnet roaming keeps client in
Access VLAN
This issue has been seen on WLC1 managing AP1 and WLC2
managing AP2 have same SSID with WLANs on both the controllers
mapped to interface which are on the same subnet. (Both controllers
are running version 6.0.182.0.)
Steps to reproduce:
1.
Client is initially associated to AP1. Do a posture validation on
the client and client entry is shown on WLC1.
2.
Now disable AP1. The client machine is associated to AP2, the
client entry is deleted from WLC1, and the client entry is now
available only on WLC2. Client is now in Access VLAN and
client entry shown on WLC2.
However, the CAM still lists WLC1 IP address with client entry.
3.
Clear the CDL and OUL from the CAM. The client still appears
in the Access VLAN, has complete access to the internet, and an
error appears in the CAM’s nac-manager.log file after clearing
the CDL and OUL on the CAM.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
37
Caveats
Table 5
List of Open Caveats (Sheet 19 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtb30691
No
Agent pops up from and active wired NIC after user is already
authenticated via a wireless NIC in the same client machine
After authenticating using the wireless NIC with a higher preference
than the wired NIC on the same client machine, the Agent pops up
again, prompting the user to enter authentication credentials. This
happens on Windows XP SP3 client machines. (This issue has not
been observed in Windows XP SP2.)
Workaround The problem is caused by a Windows TCP/IP feature
called “Dead Gateway Detection.” To disable this feature, set the
“EnableDeadGWDetect” registry value under
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\T
cpip\Parameters to 0, then reboot the client machine.
CSCtb32797
No
LDAP GSSAPI with SSL lookup and authentication fails
The Cisco NAC Appliance network returns the following message:
“Unsupported Ldap Operation ([LDAP: error code 53 - 00002029:
LdapErr: DSID-0C09048A, comment: Cannot bind using sign/seal
on a connection on which TLS or SSL is in effect, data 0, v1771])”
or
“Naming Error (dcchild.child.2k8.com:636; socket closed)”
CSCtb38026
No
Note
Microsoft has documented this error on its support site at
http://support.microsoft.com/kb/957072. Unfortunately,
Windows 2008 server SP2 with the latest Windows updates
as of 8/20/09 did not resolve this problem.
Note
There is no known workaround for this issue.
Scripting error with database restore with modified DB snapshot
name
If the database snapshot name is altered to include some string after
the version number and before the .gz suffix like the following:
08_12_09-23-48_snapshot_VER_4_7_0_A23_upgraded_from_4-1-3
.gz
the database restoration process returns a scripting error. This issue
is only cosmetic and does not affect the database restore
functionality.
Workaround Do not rename the database snapshot (for identification
purposes, for example) after it has been created.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
38
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 20 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtb55184
No
Web Agent download fails if the CAS IP address in the trusted
certificate is different from the CAS domain IP address.
This situation can occur when the CAS is in Layer 2 In-Band Real-IP
gateway mode, and IP used for initial SSL cert during install is
different from that imported using the web console.
Workaround Enter service perfigo restart on the CAS to resolve
this issue.
CSCtb70199
No
Redirect Blocked Request option shows incorrect page when using
filter
User gets redirected to the default Blocked page URL when
attempting to access a webpage that is not allowed under their user
role's traffic policies instead of a custom page or URL that has been
defined by the administrator. This occurs because the user shows up
in the certified device list as [device-filter] but does not appear in the
online user list.
CSCtb92910
No
Need to reflect all the states of FIPS card in the UI and CLI
Currently, the web console page only reflects whether or not the
FIPS card is operational, but states like maintenance or initialization
are not reflected.
Workaround If the CAM Monitoring > Summary page does not
show that the FIPS card is operational, assume it is in one of the other
states (Maintenance or Initialization). You can also manually verify
the electromagnetic switch position (“O,” “M,” or “I”) on the FIPS
card, itself when you look at the back of the NAC-3315/3355/3395
chassis.
Note
CSCtb98457
No
Once the FIPS card is Operational on the CAM/CAS, the
position of the electromagnetic switch on the FIPS card does
not come into play again until you reboot either the FIPS card
or the appliance.
Posture Assessment requirements for Vista machines results in the
user being placed in the temporary role.
This has been observed in Windows Vista Home operating systems
running version 4.6.2.113 of the Cisco NAC Agent.
Workaround Disable compatibility mode for Nacagent.exe.
Compatibility mode can be disabled by un-checking (disabling) the
“Run this program in compatibility mode for” option in the file
properties for NACagent.exe.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
39
Caveats
Table 5
List of Open Caveats (Sheet 21 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtc00668
No
Mac Agent trying to update Avast even though application is
up-to-date
Following login, the Mac Agent pops up prompting user to update
“ANY” AV.
Workaround Use one of the following options:
CSCtc01957
No
•
Stop and restart the Mac OS X Agent after installation.
•
Reboot the client machine.
•
Make the requirement optional (opens the network up to an old
AV definition file version).
Firefox 3.5.2 Freezes and user cannot enter user credentials
After the applet loads in the Firefox browser, the user login page
locks up and the user is unable to enter login credentials.This
situation can occur when a user is attempting web login with a
FireFox 3.5.2 browser for the very First time.
Workaround The workaround for this issue is to minimize the
Browser or open a new browser window.
CSCtc41408
No
Windows 7 tray icon default should be show icon and notifications
According to Microsoft, there is no way for a program to promote
itself by setting the “Show Icon and Notifications” option. This can
be done only by the user and only manually. Default behavior is to
hide all icons.
Workaround The Windows 7 client machine user can change this
behavior by either drag-and-dropping the hidden icon or by changing
the “Show Icon and Notifications” setting.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
40
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 22 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtc46376
No
Windows WSUS update (Microsoft rules) is not working for
KB890830
When a WSUS update is performed on a new installation of
Windows 7 (where no updates have been applied), and the No UI
option is selected for the requirement, the WSUS update can fail.
The portion of the Windows update that fails to install is the
KB890830 update (Windows Malicious Software Removal Tool,
http://support.microsoft.com/?kbid=890830). This upgrade must be
installed with admin privileges and there is a one time EULA that the
user must accept during installation.
After KB890830 is installed, there are monthly updates that are
pushed out from Microsoft on patch Tuesday. The subsequent
updates of KB890830 do not require admin privileges and they work
fine on a client where the user is not a member of the admin group.
If users manually install KB890830 on a client system as a
non-admin user using Windows Update, they are prompted for the
administrator password and then get the EULA.
Workaround Ensure new installations of Windows are brought up to
date by a user with administrator privileges prior to turning the client
machine over to users without administrator privileges.
CSCtc52252
No
Cannot uninstall the Agent using MSI executable with full quiet
mode selected
If you open a Command Prompt window and run the MSI
install/uninstall commands using the quiet option, the command
fails.
Workaround You must open the Command Prompt window using the
“Run as Administrator” option, even if you are administrator on the
system.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
41
Caveats
Table 5
List of Open Caveats (Sheet 23 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtc59248
No
The Agent does not launch if IE has never been launched or the CA
certificate is not installed
The Cisco NAC Agent login window does not pop up (or takes a long
time to pop up) during initial login because:
•
The CA cert that signs the CAS server cert has not been installed
•
IE has never been launched before by the user
This problem could also occur when the administrator kicks the user
out of the NAC Appliance network after logging in via and OOB
session.
Workaround - Deploy the CA cert that signs the CAS server cert
before user loges in and instruct the user to start IE after
experiencing this problem.
Note
CSCtc66277
No
The Cisco NAC Agent running in a Windows 7 environment
allows the user to install the CA certificate at initial login.
IP refresh takes a minute and Agent vanishes after that
This issue can come up in a network where spanning tree merge has
been configured on the switch. Configuring portfast minimizes the IP
refresh time.
Note
CSCtc68565
No
Cisco recommends enabling port-fast switch configuration
whenever appropriate to do so.
Web Agent does not launch using ActiveX on a client machine where
the administrator UAC is “default”
When using Windows 7 as a local machine administrator and a proxy
server, Internet Explorer places the CAS into the intranet settings
category, which automatically disables “Protected Mode.”
Workaround Enable “Protected Mode” in Internet Explorer for
intranet sites.
CSCtc84563
No
Clean Access Agent does not register dynamic DNS after
authentication
Computers running the Clean Access Agent register with dynamic
DNS upon system startup, but they are not re-registered after they are
moved to the production VLAN upon successful authentication and
posture assessment.
Workaround Manually issue "ipconfig /register"
Release Notes for Cisco NAC Appliance, Version 4.8(3)
42
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 24 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtc86765
No
The Cisco NAC Agent does not pop up in a VPN environment upon
re-connecting to the VPN server
This issue has been observed when power cycling a SOHO (Small
office home office) DSL/Cable modem router, thus terminating the
VPN connection.
Workaround Exit and re-launch the Cisco NAC Agent.
CSCtc90896
No
For McAfee Total Protection 5.0, you need to change firewall setting
AV definition file update for McAfee Total Protection 5.0 does not
work with the default McAfee firewall settings.
Workaround For AV definition file update to work for McAfee Total
Protection 5.0, you need to change the McAfee firewall setting from
“Untrusted Network” to “Trusted Network” or “Custom” and allow
the McAfee program to access the update site.
CSCtc90964
No
Inaccuracy in AV/AS support info
Latest Virus Definition version/date for Selected Vendor under
AV/AS support info does not display the updated version/date for
some AV/AS vendors.
CSCtc91616
No
Inconsistent support for Internationalized characters in usernames
It is unclear if Internationalized characters are supported for
uncommon user names in Cisco NAC Appliance. For example, some
internationalized characters (like è) are allowed when creating a
username on the CAM, but user login fails. Other character sets (like
Japanese) also fail when attempting to create the user in the Local
DB.
CSCtc92037
No
Mac agent in L2 non-strict mode does not pop up behind NAT router.
With L2 non-strict mode and Mac client behind NAT router, Mac
agent does not pop up.
Note
CSCtd04881
No
There is no known workaround for this issue.
Serbian web install shows error and installer is English
A popup window appears with an error message in Serbian, which
approximately translates to, “Writing error in applied
transformation. Recommend to use a valid transformation path.”
After clicking OK the installer launches in English, yet the
application launches and is fully functional in Serbian.
Note
There is no known workaround for this issue.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
43
Caveats
Table 5
List of Open Caveats (Sheet 25 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCte55522
No
The Cisco NAC Agent for Release 4.7(2) does not update ZoneAlarm
7.1.078.000 in Windows Vista Ultimate
This particular update works in Windows Vista Ultimate SP0.
Workaround The user can upgrade to ZoneAlarm Version 8 when
running Windows Vista Ultimate SP1.
CSCte64337
No
Unexpected switch to UDP discovery mechanism
There are unexpected SSM events found in the Agent log. These
events are caused by unexpected switch to UDP discovery after
SwissUdpExchange starts sending Swiss requests.
CSCte76636
No
L3 MAC unable to refresh on Vista (32-bit/64-bit) w/ UAC w/o port
bounce
Windows Vista users are not able to get an IP address from the DHCP
pool for the access VLAN with web login or web agent.
Workaround Run the browser (Internet Explorer or Firefox) as
administrator.
CSCtf02702
No
After deleting and re-adding a CAS, the CAM web console displays
that AD SSO is started
This issue does not impact Cisco NAC Appliance functionality. After
deleting and re-adding a CAS, the administrator must also reboot the
CAS. Once you reboot the CAS (or perform “service perfigo
restart”), everything works as designed.
Workaround Restart the CAS to avoid this symptom appearing.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
44
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 26 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtf69345
No
Agent reports incorrect update details for McAfee 8.7.0i on Win7
x64
NAC Agent reports incorrect McAfee virus definition update date
and version, while McAfee shows the right date.
This occurs because Windows registry is blocked with permissions
issue and prevents McAfee from overwriting the appropriate date
and version information to registry.
Workaround Perform the following steps:
CSCtf99678
No
1.
Uninstall McAfee.
2.
Delete the following key and sub keys from registry:
HKEY_LOCAL_MACHINE\SOFTWARE\McAfee
3.
Re-install McAfee and confirm that the entry is recorded in the
registry with proper details.
4.
Perform updates in McAfee.
5.
Verify that both NAC Agent and McAfee show the same dates
and definition versions.
Enable OOB logoff msg for Windows not grayed out in Firefox
browser
The Enable OOB logoff for Windows NAC Agent and Mac OS X
Agent checkbox is not grayed out in Mozilla Firefox version 3.5.8,
even with the “Use 'WINDOWS_ALL' settings for this OS version”
option checked.
Note
CSCtg01263
No
This issue appears in Mozilla Firefox and has not been
observed in other browser types.
Invalid provider name seen between multi-NIC transition with OOB
Logoff
This problem is happening because while the role based (with IP
refresh) wired NIC is transition from logged in, through IP refresh
on logout, then the wireless NIC has the better metric so the wireless
side responds, once the ip is refreshed on the wired side an invalid
provider is seen and then wired login continues normally.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
45
Caveats
Table 5
List of Open Caveats (Sheet 27 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtg06599
No
IP refresh on Win 7 after successful auth is very slow
After a successful login, it takes 1-4 minutes for a machine to
complete the IP refresh. This happens with Windows 7 and Vista
machines moving from authentication to access networks (with an IP
address change).
This occurs because the Network Connectivity Status Indicator,
which is part of the Network Location Awareness in Windows, tries
to reach the msftncsi.com web page while performing IP refresh. If
it is not able to reach this website, then Microsoft takes longer to
sense the machine’s status and results in slower applications that
require internet access.
For more information, see Known Issue with Delayed IP Address
Refresh for Windows 7/Vista Clients Running Cisco NAC Agent,
page 87.
CSCtg39044
No
Running Internet Explorer in offline more effects Cisco NAC Agent
auto-upgrade function
When users access the network via Internet Explorer in offline mode,
the Cisco NAC Agent auto-upgrade function does not work correctly
for Agent versions 4.7.2.10 and earlier. The login session
appropriately prompts the user to upgrade the Agent, but clicking
OK brings up the login screen instead of launching the Agent
installer.
CSCtg45522
No
Delay in Agent logging out in Vista 64-bit
Found that after authentication when click logout on a Vista 64bit
machine, it takes a while before CAM receives the logout message
and hence client takes a while to switch back from access to auth.
CSCtg45741
No
IP address release takes a while in Windows 7 32-bit using taskbar
logout option
IP release takes a long time to complete on Windows 7 32-bit clients
for Cisco NAC Agent. As a result, the delay between release and
renew is around 50sec.
CSCtg45753
No
Cisco NAC Agent won't pop-up with multi-NIC same metric
/auth/discovery 404
This issue can occur when Agent runs on a client machine with two
NICs using the same metric. (For example, the wired interface has
NAC, while the wireless interface has no NAC.)
Note
CSCtg57758
No
This was observed on 100MB wired and 300MB wireless
interfaces where the wireless speed signal dropped close to
100 resulting in two NICs with the same metric.
Error in Mac OS X Agent while editing Filters
Release Notes for Cisco NAC Appliance, Version 4.8(3)
46
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 28 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtg61995
No
Mac OS X Agent SWISS discovery back-off algorithm
When Mac Agent is not connected to a NAC network, the Agent will
never give up on trying to contact the last known CASes. It will
continuously send UDP SWISS packet every ~17 seconds forever.
CSCtg65859
No
The Cisco NAC Agent is not able to logout in an OOB deployment
When the user performs web login and then launches the NAC Agent
(or closes the NAC Agent dialog window if already launched), and
then tries to log out using the NAC Agent in an OOB environment,
the NAC Agent is not able to log out. This happens because OOB
Logoff is not supported for Web Agent login.
Workaround Use the Cisco NAC Agent to log in to such networks.
CSCtg69836
No
HTML Canned Report Missing AV gives blank report, but is ok for
PDF
CSCth00256
No
Cert error seen on Mac Agent during login on multinic setup
After importing self-signed certificate in the trusted Root CA on Mac
OSX client machine, while logging in using wireless, a message pops
up stating that the certificate is incorrect.
Workaround When the Agent login fails for the first time and the
Agent pops up again, try logging in again by entering user
credentials and user should be able to login.
CSCth17804
No
VPN SSO presents a blank Cisco NAC Agent login dialog
Following a VPN disconnect, the client machine renegotiates for
VPN to connect through the network and the user is presented with
a blank Agent login dialog.
CSCth60233
No
Windows IP Refresh not working properly after user logoff
This issue has been observed on both Windows XP and Vista client
machines—the Agent is not releasing the IP address.
Workaround Manually refresh the IP address on the client machine.
CSCth61503
No
Duplicate kernel status message appears during CD installation
The “Memory for crash kernel (0x0 to 0x0) not within permissible
range” message appears twice in a row during CD installation.
CSCth73166
No
Remediation and login screens are still displayed after network
change
The Agent displays these screens indefinitely (or until the
remediation timer expires) after removing the network cable or
changing networks while the Agent login or remediation screens are
active.
Workaround Click Cancel on the login page or click Complete on
the remediation screen.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
47
Caveats
Table 5
List of Open Caveats (Sheet 29 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCth73774
No
McAfee Virus scan 14.0 remediation fails
This issue has been observed during client remediation of McAfee
VirusScan 14.0.
Workaround Set McAfee to automatically update during the time the
user is logged in. (The user can also manually update while logged
in or while in the Agent Temporary role.)
CSCth85390
No
Certificate dialog appears multiple times when certificate is not valid
Workaround Ensure valid certificates are available on the client
machine.
CSCth85833
No
The Cisco NAC Agent tool-tip indicates logged-in long after VPN
disconnect
This issue has been observed performing VPN SSO via the Cisco
NAC Agent on Windows 7 client machines.
Note
This issue has no impact on system functionality.
CSCth88009
No
The Mac OS X Agent’s Popup Login Window option does not work
during SSO
CSCth98219
No
Agent appears when user is logged in via restricted network access
role
When a user logs into an Out-of-Band network and accepts
Restricted network access after failing a mandatory requirement. the
Cisco NAC Agent appears a second time (and continues to appear
each time) when the user either logs in again without remediating, or
closes the Agent login dialog.
Workaround The Cisco NAC Appliance administrator can manually
add text to the Restricted Access dialog box advising the user to
iconize the Agent and must perform manual remediation. Once the
user remediates the client machine, they can double-click the Agent
icon and log in again.
CSCti03955
No
The Agent login dialog becomes unresponsive when the Temporary
role timer runs out
This situation can occur if the Temporary role timer expires during a
long remediation like WSUS or AV/AS update.
Workaround To avoid this issue, make sure the Temporary role timer
is set to a value that will not expire during “worst case” remediations.
Note
If this problem occurs, users can clear the NAC Agent login
dialog by selecting Exit from the Cisco NAC Agent systray
icon or rebooting the client machine. If the user chooses to
Exit, the user must also then manually launch the Cisco NAC
Agent again.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
48
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 30 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCti35086
No
Disable Fast SSID change for NAC Wireless OOB setup
Wireless clients without the Cisco NAC Agent installed can associate
to a “guest” WLAN where NAC is not enabled.
When FAST SSID Change is enabled globally on a Wireless LAN
Controller, wireless clients (without the Cisco NAC Agent installed
can then disassociate from the “guest” WLAN and immediately
associate to the corporate WLAN (where NAC functionality is
enabled), resulting in the client machine being placed directly into
the network Access VLAN without being redirected to the
Quarantine role.
Workaround Disable the Fast SSID function on the Wireless LAN
Controller.
CSCti68556
No
Device MAC address is not added to the filter
Under Device Management > Clean Access > General Setup >
Web Login, if Exempt certified devices from web login
requirement by adding to MAC filters is checked for MAC_ALL
OS, the client MAC address fails to get added to Filters list.
CSCtj07399
No
Clean Access Mac Agent doesn't always recognize AV Definition
Updated
When Mac OSX user is connecting to Clean Access without AV
installed, the Agent detects that the user fails the check. It detects
when the Anti Virus is installed. But, when the Anti Virus signatures
are updated, it is not detected by the Agent.
Workaround Restart the Agent after the AV installation and AV
definition requirements have been met and then the user is
authenticated.
CSCtj10001
No
NAC Agent GUI pops up on unmanaged port
The NAC Agent may popup on an unmanaged port with the
following message:
"Unable to process out-of-band login request from MAC Add ##
IPAddress] reason: [IP] port [Gi2/0/30] is not managed"
Workaround Apply an ACL to the client VLAN blocking UDP 8905
and 8906 to the CAS.
CSCtj53399
No
Clean Access Server can bridge traffic in RIP mode
There are intermittent issues in which traffic is bridged across a
Clean Access Server in RIP mode. Despite being in routed mode, the
CAS bridges traffic on the native VLAN, arriving to the CAS
untagged.
Workaround Explicitly configure the native VLAN on the switch
interface connected to the CAS to a disabled / unused VLAN.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
49
Caveats
Table 5
List of Open Caveats (Sheet 31 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtj59983
No
Exporting reports behavior inconsistent with filters
When trying to export reports from Clean Access, using any criteria
except "is" or "is not" provides false results. The GUI shows the
correct results when using any criteria, but the export option
downloads all the records and the filter is not applied.
Workaround Use the "is" or "is not" criteria while exporting the
reports.
CSCtj65580
No
DHCP Requests Fail After Failover to Secondary CAM
In HA setup, when DHCP is working failover to secondary, DHCP
Requests are not sent or answered through CAS.
CSCtk13370
No
HTC Pure and Blackberry 9700 detected as Windows_All
The HTC Pure and Blackberry 9700 are detected as Windows_All.
These phones are not able to run the NAC Agent, so they should be
detected as ALL.
Workaround Add the MAC addresses of the phones to the MAC filter
list to exempt the phones from NAC.
CSCtk57221
No
CDL timer getting killed when configured CAS status is down
Certified Device List timer on CAM may fail to start at configured
time causing no certified devices to get cleared. Once this problem
occurs the timer will no longer run and hence the certified devices
will not be cleared until one of the following workarounds is
performed.
Workaround Perform any one of the following:
CSCtk65718
No
•
Re-edit the timer to set a new start time and it should kick in
again at that point, but the issue may likely re-occur.
•
Delete the disconnected CAS from the CAM.
Need procedure for adding RMA unit with OOB setup
When replacing RMA (stand by unit), active unit must be rebooted
as part of the replacement procedure. Some clients may get in access
VLAN or auth VLAN depending on prior setting of the switch. When
CAM becomes active, clients will not be placed in correct VLAN
that are in the access VLAN already. This occurs when both CAMs
are down.
Workaround Perform the following:
•
Reboot the switch to which the clients are attached.
•
Bounce the ports of the effect clients and the switch.
•
Clear the dynamic MAC address on the switches.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
50
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 32 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtl06228
No
Abnormal behavior when “Restricted Network Access” is clicked
In OOB deployment, while downloading the NAC Agent, when the
“Restricted Network Access” button is clicked, the NAC Agent
keeps on popping up showing the following message:
“You have only restricted network access”
CSCtl11411
No
Redirect delay setting does not take effect when using Web Agent
Advanced SNMP setting "Redirection Delay with bouncing" does
not take effect for clients running the web agent and performing
posture assessment. This can cause the clients to get redirected to a
"Page cannot be displayed" message after logging in if the setting
under the user role is set to redirect to a URL.
Workaround
CSCtl42765
No
•
Disable Posture assessment and use the normal web login
process.
•
Switch to no port-bouncing in the profile and let the web client
release and renew the IP address. This switches over to the
redirection delay without bouncing timer and the web client will
not move on to that step until it releases and renews the IP
address of the client.
CAM Admin group policies missing option for "Reporting" page
If the Admin users are setup to have read-only access to any
configuration, but need to allow them to run Reports from the
Monitoring > Reports page, there is no method available to
configure this option.
Workaround
The Reporting page access is controlled by the "CCA Servers"
option under Device Management. So to minimize the permissions
given, and still be able to run Reports, the following configuration
will work.
Create an Admin Group with "view only" for all the Clean Access
Servers options, and under Module Features set everything to "read
only" except for the option "CCA Servers:". Set that to "add-edit".
As long as the individual CASs themselves are set to “view only” the
users cannot delete or make any changes to them, but they would be
able to perform two admin-like operations on the CAM with this
permission set.
1) Add a new Clean Access Server.
2) Enable/Change CCA Server Authorization.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
51
Caveats
Table 5
List of Open Caveats (Sheet 33 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtl59461
No
CAM shows old AV dates even with latest checks set
Even if the CAM Updates are pulling down the latest Checks &
Rules, the CAM still shows the latest definition dates for many
vendors like AVG, Microsoft, McAfee, and Symantec
Workaround Perform a clean update which deletes all Cisco checks
and re-downloads all of them from the server. The Update number
will be the same, but the correct dates will be stored in the CAM. To
perform a clean update, in the CAM web console, navigate to Device
Management > Clean Access > Updates > Update and click Clean
Update.
CSCtl85558
No
Nessus scanning doesn't finish completely and doesn't generate logs
When Nessus scanning is enabled for web-logins, the scan is not
completed and no logs are generated in the NAC.
Workaround Instead of Nessus scanning, web agent can be used.
CSCtl86020
No
Certificate details showing up blank when viewed from CCA device
When the subject line of the certificate contains certain
alphanumeric characters, the NAC GUI does not detect them
correctly and the certificate details are shown as blank when viewed
through the GUI. The functionality of the certificate is not affected,
but details are not displayed properly.
Workaround View the details using openssl command line tool.
CSCtn17223
No
DHCP Option 82 not correctly returned by NAC DHCP Server
DHCP Snooping will not work with the NAC Server acting as a
DHCP Server. The switch is seen adding option 82 to the Discover
and Offer, but the NAC Server does not add option 82 to the lease and
does not return option 82 in the Offer.
Workaround Use a third party DHCP server instead of using the NAC
Server.
CSCtn32436
No
Enable User Activity Logging causes load spike on CAM
When "Enable User Activity Logging" is enabled the CAM's
postmaster process causes the load on the CAM to raise to the point
where users are no longer able to login.
Workaround Disable the "Enable User Activity Logging" and reboot
the manager for the load to become normal.
CSCtn90845
No
After upgrading from 4.8 to 4.8(1), the Failover tab no longer
displays the warning if heartbeat timeout is less than the Link-detect
timer. This warning was displayed prior to the releases 4.8.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
52
OL-26233-01
Caveats
Table 5
List of Open Caveats (Sheet 34 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtn93513
No
Restricted VLAN IPs are not NACed correctly
When the “Restrict range to VLAN ID” option is checked, the CAS
is not NACing requests for IPs from users in the wrong VLAN.
CSCto25245
No
Running AV/AS canned reports gets hung for ever and stops HA sync
Canned reports for AV/AS information hang and crash HA.
CSCto49390
No
NAC Agent 4.8.1.5 takes long time to login
NAC Agent 4.8.1.5 takes long time to login when used with
Symantec Endpoint Protection, v11
CSCto54241
No
OUL is not updated when mac-move trap hits the CAM.
This is only a cosmetic issue as the CAM kicks the user off on the
correct port.
CSCto55879
No
Unable to extract CAM backups on 4.8
Not able to extract the Manager database from the tar.gz backup file
produced by utilizing the "Create Snapshot" option.
CSCto76408
No
When CA eTrust PestPatrol Anti-Spyware 8.x is updated, the
definitions are not detected.
Workaround Reboot the client system and re-initialize the PestPatrol
software.
CSCto91195
No
CAM syslog stops sending messages after being heavily loaded
When a large amount of data (> 200k) is sent to syslog, the Manager
stops sending data. It does not recover from this situation on its own
and requires a restart of services to restore syslogging.
Workaround
Manual restart of service on the Manager restores syslogging.
If the issue is triggered by a large purge of the CDL, configure the
Manager to clear 60 or fewer CDL entries per minute. This can be
done within the Certified Device List Timer by setting to clear the
oldest 60 devices every minute, until all matching devices are
cleared.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
53
Caveats
Table 5
List of Open Caveats (Sheet 35 of 35)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtj81255
No
Two MAC addresses detected on neighboring switch of ACS 1121
Appliance.
Symptom Two MAC addresses are detected on the switch interface
connected to an ACS 1121 Appliance although only one interface is
connected on the ACS 1121 Server eth 0.
Conditions Only one Ethernet interface, eth 0 is connected between
ACS and Switch.
Workaround Disable BMC (Baseboard Management Controller)
feature using BIOS setup.
Caution
CSCub01401
No
To help prevent a potential network security threat, Cisco
strongly recommends physically disconnecting from the
Cisco NAC console management port when you are not
using it. For more details, see
http://seclists.org/fulldisclosure/2011/Apr/55, which
applies to the Cisco ISE, Cisco NAC Appliance, and Cisco
Secure ACS hardware platforms.
Mac OS X Agent fails to get installed for Mac OS X 10.8 client,
when MAC App Store and identified developers is selected in the
Security & Privacy Preference settings.
Workaround In the Security & Privacy Preference settings, select
Allow from Anywhere.
CSCuh81091
No
NAC ADSSO - 2012 server with 2003 functional level is not
supported
Cisco NAC Appliance does not support Microsoft Active Directory
2012 server at 2003 functional level for ADSSO.
CSCui06972
No
NAC ADSSO is not happening in 4.8.3 server
AD SSO does not function with Microsoft Active Directory 2003
server.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
54
OL-26233-01
Caveats
Resolved Caveats - Release 4.8(3)
Refer to Enhancements in Release 4.8(3), page 15 for additional information.
Table 6
List of Resolved Caveats (Sheet 1 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtd14712
Yes
CAS info missing from new Active CAM when master secret different
When the master secret is different on two CAMs in an HA deployment,
some critical CAS information may be missing on the secondary
(standby) node.
Workaround Restore the correct master secret on the incorrect CAM.
CSCtn47794
Yes
VLANDetectWithoutUI does not function on initial boot.
VLANDetectWithoutUI parameter allows VLAN detection to continue
running when NACAgentUI.exe is closed or the user logs off.
Workaround Bounce the port or log into the system to allow user level
VLAN detect to function.
CSCtn19754
Yes
Client cannot log in, despite being present in CAS OOB OUL.
OOB users may randomly fail to connect to the network. Device is not
in CDL or OUL of the CAM, however remains in the OUL of the CAS.
Workaround Rebooting the active CAS clears the devices from the CAS
OUL.
CSCtl83172
Yes
Logging failure in CCA Manager.
When Clean Access Manager is running all logging at “TRACE”,
logging stops in /perfigo/control/tomcat/logs.
Workaround Restart the CAM.
CSCtl24190
Yes
Messages in CAS console when upgrading from 4.7.3 to 4.8.1
While upgrading NAC version 4.7(3) to 4.8(1), the following message is
displayed in the CAS web console:
"value missing in 'icmp type' directive"
Note
CSCtc97878
Yes
The upgrade happens successfully, and the messages can be
ignored.
CCA CAS can fail to commit large policy list to click.
When Cisco Clean Access environment is configured with several rules
in the user roles, a threshold may be reached where traffic is blocked at
the CAS that is specifically allowed in the rules. This can result in
undesired and unpredictable behavior.
Workaround Reduce the number of rules configured in the user roles
and/or summarize them.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
55
Caveats
Table 6
List of Resolved Caveats (Sheet 2 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCso15754
Yes
ClamXAV updates are not getting detected for first time.
ClamX AV Live update may not work for the first time if there is a
"ClamXav install" failing requirement before the live update while
performing the remediation.
Workaround The user may need to click on the remediation button twice
when the user sees these two failing requirement in the assessment
report table after the login authentication. Another workaround is to use
one requirement instead of two. ClamxAV update rule normally contains
both install and update checks. Thus, admin does not need to create two
separated requirements.
CSCtr39586
Yes
CAS continuously in sync-ing state after CAM failover.
During scheduled restart of CAS, the CAS hangs while synchronizing
with the CAM.
Workaround Restart CAS server.
CSCtq74462
Yes
CAS cannot block CAM configuration update even if SSKEY mis-match
occurs.
When SSKEY mis-match occurs between CAM and CAS, CAS should
deny configuration updates from CAM. But CAS accepts the
configuration updates from all CAMs, even if the CAM DB is not
updated with the SSKEY.
Workaround When the CAS configuration is updated with mis-matched
SSKEY, manually remove the CAM that is not updated with the right
SSKEY.
CSCtq10755
Yes
Directory Traversal in CCA.
Cisco Network Admission Control (NAC) Manager contains a directory
traversal vulnerability that may allow an unauthenticated attacker to
obtain system information.
Workaround There are no workarounds to mitigate this vulnerability.
Cisco released free software updates that address this vulnerability.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
56
OL-26233-01
Caveats
Table 6
List of Resolved Caveats (Sheet 3 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtl97116
Yes
CAM recovering from heartbeat loss can publish empty click tables to
CAS.
If due to network latency issues, two CAMs reach an Active-Active state
(because each CAM thinks the other CAM is dead and goes active) then
the previously secondary CAM (CAM-B) starts to publish information
to the CASes (Click table information such as VLAN Mapping
information is one such item). Before it can finish publishing this
information, CAM-A is able to detect that CAM-B is up and tries to
perform a database sync on CAM-B by locking its DB. On CAM-B, this
locking affects the publishing that is in progress, and many "No database
connections" are written to the log. Due to an erroneous code segment
CAM-B publishes an empty vlan_map list to the CASes.
Workaround Stop perfigo service on the standby CAM and start the
service again.
CSCti68556
Yes
Device mac address is not added to the filter.
Customer running NAC 4.7.2(VGW/OOB/L2) and checks for Exempt
certified devices from web login requirement by adding to MAC filters
under Device Management/Clean Access/General for IPOD it does not
add the MAC address to filter list.
Workaround Enhancement made for OOB. Now with the exempt option
check, the user's MAC address is added in device filter for OOB.
CSCtn32436
Yes
Enable User Activity Logging causes load spike on CAM.
During "Enable User Activity Logging" the postmaster process tries to
make calls to the database for every user that authenticates to clean
access. This causes the load on the CAM to spike to a point where the
CAM is unable to authenticate users.
Workaround Query posture report and log to UAL, so that posture
assessment report is separated from UAL.
CSCtr97672
Yes
Clients are not able to get out on the network seems as if the unauth
traffic policies are not allowing the correct traffic.
When static routes are configured you have to enter them using the
decimal format. Entering the /nn notation causes the traffic policies fail
to publish to the CAS.
Workaround Remove the /nn entries and enter the decimal format. If
running in HA mode, stop services on the standby, remove the /nn static
routes form the active and replace them with their decimal equivalent.
Reboot the active CAS and once it comes back up verify network is
restored. Then start services on the standby. Failover and verify
connectivity through standby CAS.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
57
Caveats
Table 6
List of Resolved Caveats (Sheet 4 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtr94191
Yes
Managed subnets missing after upgrade to 4.8.2.
Managed subnets are missing after an upgrade to 4.8.2, if you try to
re-add them you get a failed to add to database message. Also if you run
showstate.sh you see the following incorrect entry: Column
subnet_gateway from DB table home_subnet_info is missing or is not
type character varying(64). DB schema verification failed!
Workaround Contact Cisco TAC to fix the database.
CSCtr91526
Yes
iPads/iPods being detected as ALL after upgrade
After upgrading, iPods/iPads are no longer detected as Mac_All, but
they are now detected as All. They need to be detected as Mac_All to
support previous rules/login pages created by users.
CSCtr84555
Yes
Traffic policies fail to publish to CAS appliances.
Traffic policies fail to reach the CAS which causes irregular traffic
patterns for clients behind the clean access network. Modifying the
traffic policies to permit all traffic does not change the behavior of the
traffic traversing through the CAS.
Workaround Contact Cisco TAC to fix the database.
CSCtk00650
Yes
Defining AV def "ANY", server sending down not supported value.
Intego X6 definitions are not correctly matched even though the product
is up to date. This is only seen when using any virus definition for Mac
computers.
Workaround Set up an AV Rule to look specifically for Intego X6
definitions.
CSCtk13370
Yes
HTC Pure and Blackberry 9700 detected as Windows_All
The HTC Pure and Blackberry 9700 are detected as Windows_All.
These phones are not able to run the NAC Agent, so they should be
detected as ALL.
Workaround Add the MAC addresses of the phones to the MAC filter list
to exempt the phones from NAC.
CSCtl83172
Yes
Logging failure in CCA manager.
Logging stops in /perfigo/control/tomcat/logs. Clean Access Manager
running all logging at TRACE.
Workaround Restart CAM.
CSCtn83657
Yes
CAS - OUL JSP throwing an exception.
The JSP to list OUL on CAS throws exception.
Workaround None.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
58
OL-26233-01
Caveats
Table 6
List of Resolved Caveats (Sheet 5 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtn89835
Yes
CAM should send SNMP SET only to ports not matching the actual
configuration.
When it comes to bigger switches (for example, c6509 with multiple
modules), CAM creates a large amount of unneeded traffic (SNMP SET
for all the ports) and sometime it even fails to complete due to the
number of ports it needs to go through. The CAM behavior should be to
send the SNMP SET only for those ports that in the switch configuration
are different from what configured through the CAM's GUI.
CSCtn93513
Yes
Restricted VLAN IPs are not NACed correctly.
Where "Restrict range to VLAN ID" is checked, the CAS is not NACing
requests for IPs from users in the wrong VLAN.
CSCto25245
Yes
Running AV& AS canned reports gets hung for ever and stops HA sync
This is caused by large sized reports.
CSCto42040
Yes
NAC Incremental CDL timer throws ArrayIndexOutOFBounds
exception
Configuring a gradual CDL clear on the NAC Manager (where you set
the timer to clear a certain number of devices every minute) can cause
the timer clear to fail. The nac_manager.log support file shows a error
message. Also the CDL timer will not kick off on any subsequent
scheduled time if the above event occurs.
Workaround
CSCto54241
Yes
1.
Set the CDL timer to clear all devices at once.
2.
Set the gradual clear to clear less than 60 devices per minute.
OUL not updated after mac move trap.
When clients are plugged in behind IP phones the mac move feature
allows them access to network correctly. The OUL for the user is not
updated with the most recent port from which they are accessing the
network.
Workaround None. The customer needs to login to the switch and resolve
the client's MAC address as an extra step in the troubleshooting process.
CSCto88332
Yes
Intermittent DHCP failure
DHCP intermittently fails under load. The CAS drops the DHCP
requests.
Workaround Off load DHCP to another CAS for load balancing or to
another DHCP server altogether.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
59
Caveats
Table 6
List of Resolved Caveats (Sheet 6 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtq54440
Yes
Https redirect through CAS fails with 403 forbidden error.
When accessing an HTTPS site CAS is not redirecting to the login page,
but returns a 403 forbidden error.
Workaround
CSCtr07636
Yes
1.
Browse to any http resource initially and go to the desired https site
after login and or remediation.
2.
Browse to https://cas_ip/auth page initially, once authenticated and
remediated, user can browse any of the corporate https resources.
Web GUI locked when Radius session fails to timeout.
When a admin user is configured with Radius server as authentication
server and user tries to login, session is hung when there is no reply from
Radius server.
Workaround Reboot the CAM.
CSCtb70199
Yes
Redirect Blocked Request option shows incorrect page when using filter.
CAM has a custom block URL/html defined under a user role under the
"Redirect Blocked Requests to" option. If the user logs in with the agent,
they get put in that role, and get added to the CDL and OUL and that
block page appears if they go elsewhere that is not allowed in their role.
However, if the user uses a MAC filter they only get added to the CDL
(as [device-filter]) and not to the OUL at all. They don't get the custom
Redirect Blocked Requests code and get the default block page.
Workaround None.
CSCtl11411
Yes
Redirect delay setting does not take effect when using Web Agent.
Advanced SNMP setting "Redirection Delay with bouncing" does not
take effect for clients running the web agent and performing posture
assessment. This can cause clients to get redirected to a "Page cannot be
displayed" message after logging in if the setting under the user role is
set to redirect to a URL (or to the original page).
Workaround
1.
Disable Posture assessment and just use the normal web login
process.
2.
Switch to no port-bouncing in the profile and let the web client
release and renew the IP address. This switches over to the
redirection delay without bouncing timer and the web client will
move on to that step until it releases and renews the IP address of
the client.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
60
OL-26233-01
Caveats
Table 6
List of Resolved Caveats (Sheet 7 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtn17223
Yes
DHCP Option 82 not correctly returned by NAC DHCP Server.
DHCP Snooping will not work with the NAC Server acting as a DHCP
Server. The switch is seen adding option 82 but the NAC Server does not
add option 82 to the lease and does not return option 82 in the Offer.
Workaround Use a 3rd party DHCP server instead of using the NAC
Server.
CSCtn88160
Yes
CAM not allowing user to login after some exceptions.
The exceptions are from snmp4j library. The error is null pointer
exception and in snmp4j.pendingrequest.run method. After the
exception, there are lot of "Timer already cancelled" messages and user
can not login. When the user saves the switch profile in the GUI, CAM
starts functioning again smoothly.
Workaround Use 1.11 release of snmp4j.
CSCtl71787
Yes
Windows Phone 7 recognized as Windows XP/2000.
Windows Phone 7 is recognized incorrectly as a Windows XP/2000
machine. Users with these phones are prompted to download the NAC
agent, and are allowed into the network.
Workaround Filter the phone to the correct role by MAC address.
CSCtv20903
Yes
iPhones/iPads failing on OS=ALL in Clean Access
After upgrading, iPods/iPads are no longer detected as Mac_All, but
they are now detected as All. They need to be detected as Mac_All to
support previous rules/login pages created by users.
Login fails for iPhones/iPads/iPods with the following error:
“NAC Agent/Web Agent has been configured. Access allowed from
Windows and MAC clients only”
The OS is detected correctly as MAC_ALL in User Page, but even if
"Require use of Agent" is unchecked in the Clean Access > General
Setup > Agent Login page, the above error is displayed.
Workaround The All OS can be configured to not require the agent. After
this, change the rules that were previously on All OS to Windows_All,
so that Windows users are still prompted to install the agent.
CSCtc80598
Yes
Option to Unmanage ALL Ports of a given switch
Need to have an option to unmanage all the ports in a switch.
The option Unmanage All has been included in NAC Appliance Release
4.8(3). Refer to Unmanage All Option for Switches, page 16.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
61
Caveats
Table 6
List of Resolved Caveats (Sheet 8 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCtr78270
Yes
Modified user-agent string fails stack signature check
It is possible to bypass the clean access requirement by modifying the
user agent string in Mozilla browser, by setting the string to "iphone-os".
The user gets full access to the network.
Workaround Disable iPhone access to the network.
CSCtu13612
Yes
SNMP linkup/down and WoL causing MAC address learning issues
When Wake on LAN is enabled and SNMP Link Up/Down traps are
used, while using the option "Do not bounce port to generate Linkup trap
if MAC address query failed", CAM fails to read the MAC Address.
Workaround Use MAC Address Notification traps.
CSCtu30985
Yes
Importing filters causes errors to be displayed
When adding over 300 filter entries on the CAM, the following error is
displayed
An Error Occurred:
ConnectorClient not connected to RMI Connector Server
Workaround Try to add 100 entries at a time.
CSCua09429
Yes
Include support for Windows 8 on NAC Appliance.
CSCto49390
Yes
NAC Agent 4.8.1.5 takes long time to login when used with Symantec
Endpoint Protection, version 11.
CSCub23095
Yes
NAC Manager SQL Injection Vulnerability.
Workaround Security advisory cisco-sa-20130417-nac has been
released. You can download the following patch to fix this issue:
http://software.cisco.com/download/release.html?mdfid=282855549&f
lowid=34712&softwareid=282573326&release=4.8.3&relind=AVAILA
BLE&rellifecycle=&reltype=latest
Release Notes for Cisco NAC Appliance, Version 4.8(3)
62
OL-26233-01
Caveats
Table 6
List of Resolved Caveats (Sheet 9 of 9)
Software Release 4.8(3)
DDTS Number
Corrected
Caveat
CSCur03364
Yes
NAC Appliance BASH Vulnerability
Cisco NAC Appliance includes a version of bash that is affected by the
vulnerabilities identified by the Common Vulnerability and Exposures
(CVE) IDs:
CVE-2014-6271
CVE-2014-7169
CVE-2014-7186
CVE-2014-7187
CVE-2014-6277
CVE-2014-6278
PSIRT Evaluation:
The Cisco PSIRT has assigned this bug the following CVSS version 2
score. The Base and Temporal CVSS scores as of the time of evaluation
are 7.5/7.5:
https://intellishield.cisco.com/security/alertmanager/cvssCalculator.do
?dispatch=1&version=2&vector=AV:N/AC:L/Au:N/C:P/I:P/A:P/E:H/R
L:U/RC:C
The Cisco PSIRT has assigned this score based on information obtained
from multiple sources. This includes the CVSS score assigned by the
third-party vendor when available. The CVSS score assigned may not
reflect the actual impact on the Cisco Product.
Additional information on Cisco's security vulnerability policy can be
found at the following URL:
http://www.cisco.com/web/about/security/psirt/security_vulnerability_
policy.html
Resolved Caveats - Cisco NAC Agent Vers 4.8.3.9/Mac OS X Vers 4.8.3.594
Refer to Enhancements in Release 4.8(3), page 15 for additional information.
Table 7
List of Resolved Caveats (Sheet 1 of 3)
Cisco NAC Agent Version 4.8.3.9/Mac OS X Version 4.8.3.594
DDTS Number
Corrected
Caveat
CSCtr32896
Yes
Webagent’s check for requirements never ends.
Webagent check appears to be going in a never ending process on
Windows-7 Enterprise and the scan does not complete. Not seen with
NAC agent on the same machine.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
63
Caveats
Table 7
List of Resolved Caveats (Sheet 2 of 3)
Cisco NAC Agent Version 4.8.3.9/Mac OS X Version 4.8.3.594
DDTS Number
Corrected
Caveat
CSCtb30416
Yes
VLAN detect does not work if Nortel VPN client is installed.
NAC Agent VLAN change detection does not work if Nortel VPN client
is installed and the client does not have to be running (no VPN tunnel).
Workaround Uninstall Nortel VPN Client.
CSCth93573
Yes
Agent UI crash.
Agent UI crashed with the following message: Faulting application
nacagentui.exe, version 4.8.0.32, faulting module nacagent.dll, version
4.8.0.32, fault address 0x000847d0.
Workaround Restart the agent and log back in.
CSCtl91166
Yes
File check with download remediation fails.
CCA Agent File check fails when file exists.
Workaround None.
CSCtn14600
Yes
Clicking the "X" may hang the agent.
When the NW disruption notification screen is displayed, and the user
clicks the Close (x) button, instead of the "OK" button, then it results in
the Agent being in the "hang" state as the discovery will not occur.
Workaround Restart the Agent.
CSCtn08809
Yes
Integrate uninstall script/application into Mac Agent
Currently there is no automated method for uninstalling the Macintosh
Cisco NAC Agent.
Workaround You can uninstall the Mac OS X Agent by running the
uninstall script as follows:
CSCtq08418
Yes
•
Open the navigator pane and navigate to <local drive ID> >
Applications.
•
Highlight and right-click the CCAAgent icon to bring up the
selection menu.
•
Choose Show Package Contents and double-click NacUninstall.
•
This will uninstall the Agent on Mac OS X.
Unknown User Error: Regression Bug Introduced by CSCtg97488 fix.
Users get "unknown user" error.
Workaround Use Agent 4.8.0 or Agent versions before 4.8.1.5.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
64
OL-26233-01
New Installation of Release 4.8(3)
Table 7
List of Resolved Caveats (Sheet 3 of 3)
Cisco NAC Agent Version 4.8.3.9/Mac OS X Version 4.8.3.594
DDTS Number
Corrected
Caveat
CSCts35334
Yes
CCA Agent Downloading Optional Language Packs.
On certain OS' when the CAM is using a WSUS requirement pointing to
Microsoft Servers to install only Critical Updates, optional language
packs are being installed during remediation.
Workaround None.
CSCtt93822
Yes
AV/AS handling should use more than ProductID for identification.
AS definition check fails on the system if MS Security Essentials and
Windows Defender are installed.
Workaround None.
CSCty39040
Yes
VLAN Detect doesn't detect network interface, NAC Agent 4.8.3
When a client having 4.8.3 Agent is connected to a NAC 4.8.2
Appliance, it is not authenticated properly. VLAN Detect is not
detecting the network interface.
CSCtz23958
Yes
ENH: NAC agent in L3-OOB is not compatible with Citrix VPN Client
When VLAN Detect is enabled, Citrix VPN connections do not connect
if NAC agent is running on PC.
Workaround
•
If clients are not behind IP phones, then disable VLAN Detect.
•
Close NAC Agent from the taskbar, before connecting to VPN. This
requires the traffic to VPN endpoint to be enabled in
unauthenticated role.
New Installation of Release 4.8(3)
The following steps summarize how to perform new CD software installation of Release 4.8(3) on
supported Cisco NAC Appliance hardware platforms (see Release 4.8(3) and Hardware Platform
Support, page 3 for additional support details).
To upgrade on an existing Cisco NAC Appliance, refer to the instructions in Upgrading to Release 4.8(3),
page 67.
Note
The click in the NAC is configured with default settings like default priority, CPU usage etc. The driver
loop of the click thread uses the full CPU whenever other processes are idle. The CPU usage of click can
reach 99%. As the thread runs with default priority, other processes like tomcat can take over whenever
requests come for them. The high CPU usage of click will not lead to any performance issues.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
OL-26233-01
65
New Installation of Release 4.8(3)
For New Installation:
With Release 4.8(3), installation occurs in two phases:
1.
The software is installed from the CD, and when complete, the CD is ejected from the appliance.
2.
The admin logs in and performs the initial configuration.
Step 1
If you are going to perform a new installation but are running a previous version of Cisco NAC
Appliance, Cisco recommends backing up your current Clean Access Manager installation and saving
the snapshot on your local computer, as described in General Preparation for Upgrade, page 72.
Step 2
Follow the instructions on your welcome letter to obtain product license files for your installation. See
Licensing, page 2 for details. (If you are evaluating Cisco Clean Access, visit
http://www.cisco.com/go/license/public to obtain an evaluation license.)
Step 3
Install the latest version of Release 4.8(3) on each Clean Access Server and Clean Access Manager, as
follows:
a.
Log in to the Cisco Software Download Site at http://www.cisco.com/public/sw-center/index.shtml.
You will likely be required to provide your CCO credentials.
b.
Navigate to Security > Access Control and Policy > Network Admission Control > Cisco NAC
Appliance > Cisco NAC Appliance 4.8.
c.
Download the latest Release 4.8(3) .ISO image (e.g. nac-4.8_3-K9.iso) and burn the image as a
bootable disk to a CD-R.
Note
d.
Cisco recommends burning the .ISO image to a CD-R using speeds 10x or lower. Higher
speeds can result in corrupted/unbootable installation CDs.
Insert the CD into the CD-ROM drive of each installation server, and follow the instructions in the
auto-run installer.
Step 4
After software installation, access the Clean Access Manager web admin console by opening a web
browser and typing the IP address of the CAM as the URL. The Clean Access Manager License Form
will appear the first time you do this to prompt you to install your FlexLM license files.
Step 5
Install a valid FlexLM product license file for the Clean Access Manager (either evaluation, starter kit,
or individual license).
Step 6
At the admin login prompt, login with the web console username and password you configured when
you installed the Clean Access Manager.
Step 7
In the web console, navigate to Administration > CCA Manager > Licensing to install any additional
license files for your CASs, CAM HA pairs or CAS HA pairs. You must install the CAS license to add
the CASs to the CAM and an OOB CAS license to enable OOB features on the CAM.
Step 8
Perform initial configuration of your CAM/CAS according to the instructions in the Cisco NAC
Appliance Hardware Installation Guide, Release 4.8.
For additional information on configuring your deployment, including adding the CAS(s) to the CAM,
refer to the following guides:
•
Cisco NAC Appliance - Clean Access Manager Configuration Guide, Release 4.8(3)
•
Cisco NAC Appliance - Clean Access Server Configuration Guide, Release 4.8(3)
Release Notes for Cisco NAC Appliance, Version 4.8(3)
66
OL-26233-01
Upgrading to Release 4.8(3)
Note
As of Release 4.7(0), Cisco NAC Appliance no longer contains the “www.perfigo.com” Certificate
Authority in the .ISO or upgrade image. Administrators requiring the “www.perfigo.com” CA in the
network must manually import the CA from a local machine following installation or upgrade to Release
4.8.
In order to establish the initial secure communication channel between a CAM and CAS, you must
import the root certificate from each appliance into the other appliance’s trusted store so that the CAM
can trust the CAS’s certificate and vice-versa.
Note
Clean Access Manager 4.8(3) is bundled with version 4.8.3.9 of the Cisco NAC Agent and version
4.8.3.594 of the Mac OS X Agent.
Note
Cisco NAC Appliances assume the keyboard connected to be of US layout for both direct and IP-KVM
connections. Use a US layout keyboard or ensure that you know the key mapping if you are connecting
a keyboard of different layout.
Upgrading to Release 4.8(3)
Note
To upgrade from Cisco NAC Appliance Release 4.1(8) or earlier to Release 4.8(3), you must first
upgrade your system to Release 4.6(1), 4.7(x), or 4.8 and then upgrade to Release 4.8(3).
This section provides instructions for how to upgrade your existing supported Cisco NAC Appliance
platform to Release 4.8(3). If you need to perform a new CD software installation, refer instead to New
Installation of Release 4.8(3), page 65.
Refer to the following information prior to upgrade:
Caution
Note
•
Paths for Upgrading to Release 4.8(3)
•
Changes for 4.8(3) Upgrade
•
General Preparation for Upgrade
•
Upgrade Instructions for Standalone Machines
•
Upgrade Instructions for HA Pairs
During the upgrade process, new users will not be able to log in or authenticate with Cisco NAC
Appliance until the Clean Access Server reestablishes connectivity with the Clean Access Manager.
Cisco NAC Appliance 4.8(3) release includes Cisco NAC Profiler Collector version 3.1.0.24 by default.
When upgrading the CAS to a newer Cisco NAC Appliance release, the current version of the Collector
is replaced with the default version of the Collector shipped with the Cisco NAC Appliance release. For
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example, if you are running Release 4.8 and Collector 3.1.1, and you upgrade to NAC 4.8(3), the
Collector version gets downgraded to 3.1.0.24. Refer to the Release Notes for Cisco NAC Profiler for
software compatibility matrixes and additional upgrade and product information.
Paths for Upgrading to Release 4.8(3)
Depending on the type of upgrade you are performing, use one of the following sets of guidelines to
successfully upgrade your Cisco NAC Appliance release image, Cisco NAC Appliance hardware, or
both:
Note
•
Migrating from Customer-Supplied Hardware to Release 4.8(3) on a NAC-3310/3350/3390
Platform
•
Upgrading an Existing NAC-3310/3350/3390 Platform to Release 4.8(3)
•
Migrating from a NAC-3310/3350/3390 Platform to Release 4.8(3) on a NAC-3315/3355/3395
Platform
If you are upgrading from an earlier Cisco NAC Appliance release on non-Cisco hardware to a next
generation Cisco NAC-3315/2255/3395 platform, you must use the new Cisco Migration Utility
available on CCO and follow the migration instructions in Cisco NAC Appliance Migration Guide Release 4.1(8) to Release 4.7(0) and then upgrade your system(s) to Release 4.8 according to the
guidelines in Upgrade Instructions for Standalone Machines, page 74.
Migrating from Customer-Supplied Hardware to Release 4.8(3) on a NAC-3310/3350/3390 Platform
Note
This procedure only applies to customers upgrading non-Cisco hardware to NAC-3310/3350/3390
platforms.
If you are running the Cisco NAC Appliance software (Release 4.1(x) or earlier) on a non-Cisco NAC
Appliance platform, you must purchase Cisco NAC Appliance hardware before you can upgrade your
system to Release 4.6(1) or later. You may additionally need to obtain proper FlexLM product licenses.
Once you obtain your new Cisco NAC Appliance hardware, Cisco recommends that you:
Step 1
Create a backup snapshot for the current software version you are running (e.g. 4.1(x) or earlier).
Step 2
Download and install the same software version on your new Cisco NAC-3310/3350/3390 platform.
Step 3
Restore the snapshot to your new Cisco NAC Appliance.
Step 4
If necessary (depending on your existing release version), upgrade your appliance to 4.0(x) or 4.1(x) and
then to Release 4.6(1) or 4.7(x).
Note
If you are upgrading from a much older version of Cisco Clean Access, you may need to perform an
interim upgrade to a version that is supported for upgrade to Release 4.8. In this case, refer to the
applicable Release Notes for upgrade instructions for the interim release. Cisco recommends to always
test new releases on a different system before upgrading your production system.
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Step 5
Follow the guidelines in Upgrade Instructions for Standalone Machines, page 74 or Upgrade Instructions
for HA Pairs, page 82 (depending on your deployment) to upgrade Cisco NAC Appliance from Release
4.6(1), 4.7(x), or 4.8 to Release 4.8(3).
Step 6
Create a backup snapshot of your upgraded system.
Upgrading an Existing NAC-3310/3350/3390 Platform to Release 4.8(3)
Note
This procedure only applies to customers upgrading their existing NAC-3310/3350/3390 platforms to
Release 4.8(3).
The Release 4.8(3) .ISO installation/upgrade image only supports upgrade from Release 4.6(1), 4.7(x),
and 4.8. If you are running an older software version (e.g. Release 4.1(8) or earlier), you must first
upgrade your system to one of the supported base releases for Release 4.8(3) upgrade.
Step 1
Ensure you have upgraded to Release 4.6(1), 4.7(x), or 4.8 and create a backup snapshot for your system.
Step 2
Follow the guidelines in Upgrade Instructions for Standalone Machines, page 74 or Upgrade Instructions
for HA Pairs, page 82 (depending on your deployment) to upgrade Cisco NAC Appliance from Release
4.6(1), 4.7(x), or 4.8 to Release 4.8(3).
Step 3
Create a backup snapshot of your upgraded system.
Migrating from a NAC-3310/3350/3390 Platform to Release 4.8(3) on a NAC-3315/3355/3395 Platform
Note
This procedure only applies to customers upgrading from NAC-3310/3350/3390 (non-FIPS) platforms
to a next generation (NAC-3315/3355/3395) platform and assumes you are upgrading from Release
4.6(1), 4.7(x), or 4.8 to Release 4.8(3).
If you are running the Cisco NAC Appliance software (Release 4.1(x) or earlier) on a
NAC-3310/3350/3390 platform and are planning to upgrade to next generation NAC-3315/3355/3395
hardware you must first upgrade your existing system to Release 4.6(1) or later before shifting to a new
hardware platform. You may additionally need to obtain proper FlexLM product licenses for your new
hardware before upgrading, as well. Once you obtain your next generation NAC-3315/3355/3395
hardware, Cisco recommends that you:
Step 1
Ensure you have upgraded to Release 4.7(0) and create a backup snapshot for your system.
Step 2
Download and install the same (Release 4.7(0)) software version on your new NAC-3315/3355/3395
platform.
Step 3
Restore the snapshot from your existing NAC-3310/3350/3390 to your new NAC-3315/3355/3395
hardware.
Step 4
Follow the guidelines in Upgrade Instructions for Standalone Machines, page 74 or Upgrade Instructions
for HA Pairs, page 82 (depending on your deployment) to upgrade Cisco NAC Appliance from Release
4.7(0) to Release 4.8.
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Step 5
Create a backup snapshot of your upgraded system.
Changes for 4.8(3) Upgrade
Cisco NAC Appliance Release 4.8(3) is an Early Deployment software maintenance release. Cisco
strongly recommends to test new releases on a pilot system prior to upgrading your production system.
If planning to upgrade to Cisco NAC Appliance Release 4.8(3), note the following:
•
Hardware Considerations
•
Upgrade Changes
•
Features That May Change With Upgrade
•
Password Changes
Hardware Considerations
•
You can install Cisco NAC Appliance Release 4.8(3) on the following Cisco NAC Appliance
platforms:
– NAC-3315, NAC-3355, and NAC-3395 (FIPS or non-FIPS mode)
Note
Next generation Cisco NAC Appliance platforms (FIPS or non-FIPS Cisco NAC-3315,
NAC-3355, NAC-3395) support fresh installation of Release 4.8(3) or upgrade from Release
4.7(x) or 4.8 to Release 4.8(3) only.
– NAC-3310, NAC-3350, and NAC-3390 (non-FIPS mode only)
You cannot install any Cisco NAC Appliance release other than Release 4.7(0) or later on the
NAC-3315, NAC-3355, and NAC-3395. You cannot upgrade to or install Release 4.6(1) and later on
any non-Cisco platform. See Hardware Support, page 3 for additional details.
•
If performing CD software installation on a NAC-3310 based appliance which is not reading the
software on the CD ROM drive, refer to Known Issue with Cisco NAC Appliance CAM/CAS Boot
Settings.
Upgrade Changes
Warning
If your previous deployment uses a chain of SSL certificates that is incomplete, incorrect, or out of
order, CAM/CAS communication may fail after upgrade to Release 4.6(1) and later. You must correct
your certificate chain to successfully upgrade. For details on how to fix certificate errors on the
CAM/CAS after upgrade to Release 4.6(1) and later, refer to the How to Fix Certificate Errors on the
CAM/CAS After Upgrade Troubleshooting Tech Note.
•
Starting from Release 4.7(1), the upgrade process now warns the administrator if the uploaded file
for a “File Distribution” requirement type in the CAM database exceeds 50MB. If file size is too
large, the upgrade process returns a warning to the administrator, aborts, ejects the Release 4.8(3)
.ISO CD-ROM, and reboots the appliance. Before attempting to perform the upgrade again, the
administrator must manually purge “File Distribution” files larger than 50MB from the database
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using the CAM Device Management > Clean Access > Clean Access Agent > Requirements >
Requirement List web console page, or move the uploaded file to a network server and create a
“Link Distribution” requirement to replace the oversized “File Distribution” requirement. (This
issue only affects the CAM, thus there are no changes in upgrade behavior on the CAS.)
•
Starting from Release 4.7(1), the upgrade process now warns the administrator if the total
compressed size of the CAM database cannot fit in available memory. If the compressed file size is
too large, the upgrade process returns a warning to the administrator, aborts, ejects the Release
4.8(3) .ISO CD-ROM, and reboots the appliance. Before attempting to perform the upgrade again,
the administrator must manually purge large files (like large collections of Agent Reports or Event
Logs) from the CAM database. Before attempting to perform the upgrade again, the administrator
must manually purge large database stores like Agent reports and Event Logs from the database
using the CAM Device Management > Clean Access > Clean Access Agent > Reports > Report
Viewer and Monitoring > Event Logs > Log Viewer web console pages, respectively. (This issue
only affects the CAM, thus there are no changes in upgrade behavior on the CAS.)
•
The NACAgentCFG.xml Agent configuration XML file packaged with the Cisco NAC Agent is not
preserved after upgrading from Release 4.6(1) to 4.8. You must manually re-import the Agent
configuration XML file to maintain client machine login behavior.
•
The Cisco NAC Agent does not support Nessus-based network scanning. Nessus-based network
scanning capabilities only apply to web login users and Clean Access Agent (Agent version 4.5.2.0
and earlier) users for whom a combination of client network scanning and Agent login functionality
has been configured.
•
Starting from Release 4.6(1), the CAM no longer manages Clean Access Agent Patch/Upgrade files
(CCAAgentUpgrade-4.x.y.z.tar.gz). If you are downgrading or replacing the current version of the
Agent on the CAM, be sure you only upload Clean Access Agent installation files
(CCAAgentSetup-4.x.y.z.tar.gz or CCAAgentMacOSX-4.x.y.z-k9.tar.gz) from the Cisco Software
Download site.
•
Users without administrator privileges upgrading their Windows client machine from an earlier
version of the Clean Access Agent (version 4.5.2.0 and earlier or version 4.1.10.0 and earlier) to the
Cisco NAC Agent must have the CCAAgentStub.exe Agent Stub installed on the client machine to
facilitate upgrade. (Users with administrator privileges do not need this file.) After successful Cisco
NAC Agent installation, the user is not required to have administrator privileges on the client
machine, nor is the CCAAgentStub.exe Agent Stub file needed. For more information on Agent
Stub installers and requirements/prerequisites, see the appropriate Release Notes for the specific
previous version of Cisco NAC Appliance.
•
Macintosh client machines require the CAS to have a name-based SSL certificate in order to
communicate with Cisco NAC Appliance. Note that if you generate or import a new name-based
certificate, you must reboot the CAS using the service perfigo reboot or reboot command from the
CAS CLI.
•
When you upgrade the CAM to Release 4.8(3), the installation process prompts you to upgrade the
Agent files to the latest Windows Cisco NAC Agent and Mac OS X Agent versions packaged with
the CAM software image (e.g. Cisco NAC Agent version 4.8.3.9, and Mac OS X Agent version
4.8.3.594).
•
Release 4.8(3) includes version 3.1.0.24 of the Cisco NAC Profiler Collector component that resides
on the CAS installations. When upgrading CAS appliances (standalone or HA) to Release 4.8, the
upgrade script will check the version of the Collector and only upgrade it if version 3.1.0.24 is not
already installed. Refer to the Release Notes for Cisco NAC Profiler for software compatibility
matrixes and additional upgrade and product information.
Release Notes for Cisco NAC Appliance, Version 4.8(3)
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Note
Cisco NAC Profiler and Cisco NAC Guest Server are not supported in FIPS-compliant
deployments in Release 4.8 and Release 4.7(0).
Features That May Change With Upgrade
•
If you employed any of the previous Windows registry settings to adjust Windows Clean Access
Agent behavior on client machines, you must specify the same settings in the XML Agent
configuration file to preserve Agent behavior using the Cisco NAC Agent. For more information,
see the “Cisco NAC Agent XML Configuration File Settings” section of the Cisco NAC Appliance
- Clean Access Manager Configuration Guide, Release 4.8(3).
•
For new installations of Cisco NAC Appliance Release 4.5(1) and later, the CAS Fallback behavior
enhancement introduces new default values for the Detect Interval and Detect Timeout settings (20
and 300 seconds, respectively) and requires that the Detect Timeout value be at least 15 times the
specified Detect Interval. You can find these settings at Device Management > CCA Servers >
Manage [CAS_IP] > Filter > Fallback.
If you are upgrading to Release 4.5(1) and later, however, your existing values for these settings are
preserved and you must specify new values for these settings to take advantage of the enhanced CAS
Fallback capabilities available in Release 4.5(1).
•
When upgrading a VPN SSO Cisco NAC Appliance network to Release 4.8, user login does not
work properly when the user VPN is part of a managed subnet on the CAS. For more
information, see Known Issue for VPN SSO Following Upgrade to Release 4.5 and Later, page 89.
Password Changes
•
To offer increased security against potential unauthorized access to Cisco NAC Appliance, the CAM
and CAS root admin password you specify during initial system configuration (when performing
fresh install or Release 4.8 or reconfiguring the appliance via service perfigo config) must now
meet strong password standards. However, any existing CAM/CAS root passwords are preserved
during upgrade.
•
For new installations of Cisco NAC Appliance, there is no longer a default cisco123 CAM web
console password. Administrators must specify a unique password for the CAM web console.
However, any existing CAM web console passwords (including the old default cisco123) are
preserved during upgrade.
For additional details, see also:
•
Hardware Support, page 3
•
Known Issues for Cisco NAC Appliance, page 86
General Preparation for Upgrade
Cisco strongly recommends you review this section carefully before commencing any Cisco NAC
Appliance upgrade.
Caution
During the upgrade process, new users will not be able to log in or authenticate with Cisco NAC
Appliance until the Clean Access Server reestablishes connectivity with the Clean Access Manager.
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•
Homogenous Clean Access Server Software Support
You must upgrade your Clean Access Manager and all your Clean Access Servers concurrently. The
Cisco NAC Appliance architecture is not designed for heterogeneous support (i.e., some Clean
Access Servers running 4.8 software and some running 4.6(1) or 4.7(x) software).
•
Upgrade Downtime Window
Depending on the number of Clean Access Servers you have, the upgrade process should be
scheduled as downtime. For minor release upgrades, our estimates suggest that it takes
approximately 10 to 20 minutes for the Clean Access Manager upgrade and 10 minutes for each
Clean Access Server upgrade. Use this approximation to estimate your downtime window.
•
Upgrade Clean Access Servers Before Clean Access Manager
Starting with Cisco NAC Appliance Release 4.1(6), the Clean Access Manager and Clean Access
Server require encrypted communication. Therefore, you must upgrade CASs before the CAM that
manages them to ensure the CASs have the same (upgraded) release when the CAM comes back
online and attempts to reconnect to the managed CASs.
If you upgrade the Clean Access Manager by itself, the Clean Access Server (which loses
connectivity to the CAM during Clean Access Manager restart or reboot) continues to pass
authenticated user traffic only if the CAS Fallback Policy specifies that Cisco NAC Appliance
should “ignore” traffic from client machines.
•
High Availability (Failover) Via Serial Cable Connection
When connecting high availability (failover) pairs via serial cable, BIOS redirection to the serial
port must be disabled for Cisco NAC Appliance CAMs/CASs, and for any other server hardware
platform that supports the BIOS redirection to serial port functionality.
Note
•
If you are upgrading from a Cisco NAC Appliance release older than Release 4.6(1), this
upgrade preparation step does not apply.
Database Backup (Before and After Upgrade)
Cisco recommends creating a manual backup snapshot before and after upgrade of your CAM
database. The snapshot contains CAM database configuration and CAS configuration for all CASs
added to the CAM's domain. Pre- and post-upgrade snapshots allow you to revert to your previous
database should you encounter problems during upgrade and preserves your upgraded database as a
baseline after upgrade. Make sure to download the snapshots to another machine for safekeeping.
After upgrade, delete all earlier snapshots from the CAM web console as they are no longer
compatible.
Warning
You cannot restore a CAM database from a snapshot created using a different release. For example,
you cannot restore a 4.5(x), 4.6(1), or 4.7(x) database snapshot to a 4.8(3) CAM.
•
Backup of necessary files
Cisco recommends to backup all the necessary files that are not related to the database configuration
from the system before running upgrade. For example, any previous database backups and
CAM/CAS log files can be backed up.
•
Software Downgrade
Once you have upgraded your software to Release 4.8(3), if you wish to revert to your previous
version of software, you will need to reinstall the previous version from the CD and recover your
configuration based on the backup you performed prior to upgrading to 4.8(3). See Upgrade
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Instructions for Standalone Machines, page 74 for additional details.
•
Passwords
For upgrade via console/SSH, you will need your CAM and CAS root user password.
Upgrade Instructions for Standalone Machines
This section describes how to upgrade standalone (i.e. non-HA) CAM/CAS machines from Release
4.6(1), 4.7(x), or 4.8 to Release 4.8, and only applies to Cisco NAC-3310/3350/3390 or Cisco
NAC-3315/3355/3395 platforms. If you have HA CAM/CAS pairs, refer instead to Upgrade Instructions
for HA Pairs, page 82.
In Cisco NAC Appliance release 4.8(3), you can now use a .tar.gz upgrade process similar to that used
for upgrading CAM/CAS appliances in earlier releases of Cisco NAC Appliance (like the process used
in Release 4.6(1) and Release 4.7(2)) instead of having to perform “in-place” upgrades via an .ISO image
on a CD-ROM, as is required to upgrade to Cisco NAC Appliance release 4.7(0) and 4.7(1).
After you have downloaded and copied the upgrade file to the CAM/CAS, you must use the CAM/CAS
CLI to extract the upgrade image files and perform the upgrade procedure as described in:
Note
•
Run the Upgrade Script on a Release 4.7(x) or 4.8(x) CAM/CAS, page 76
•
Run the Upgrade Script on a Release 4.6(1) CAM/CAS, page 79
You cannot use the Release 4.8(3) .ISO CD-ROM to perform an upgrade. You must use the .tar.gz
upgrade file method.
Review Changes for 4.8(3) Upgrade, page 70 and General Preparation for Upgrade, page 72 before
proceeding with these upgrade instructions.
Summary of Steps for Standalone Upgrade
The steps to upgrade standalone 4.8(3) systems are as follows:
1.
Create CAM DB Backup Snapshot, page 74
2.
Download the Upgrade File, page 75
3.
Copy the Upgrade File to the CAS/CAM, page 75
4.
Run the Upgrade Script on a Release 4.7(x) or 4.8(x) CAM/CAS, page 76 or Run the Upgrade Script
on a Release 4.6(1) CAM/CAS, page 79
Create CAM DB Backup Snapshot
This section describes how to back up your current system so that you can retrieve your previous
configuration in case there is an issue with the upgrade process.
Note
Step 1
Release 4.8(3) upgrades rewrite the appliance’s hard-disk. Therefore, Cisco recommends backing up any
non-essential data you may have manually archived (like syslog messages, event logs, etc.) onto another
machine before beginning the upgrade process.
From the CAM web console, go to the Administration > Backup page.
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Step 2
The Snapshot Tag Name field automatically populates with a name incorporating the current time and
date (e.g. 05_11_10-15-47_snapshot). You can also either accept the default name or type another.
Step 3
Click Create Snapshot. The CAM generates a snapshot file and adds it to the snapshot list at the bottom
of the page. The file physically resides on the CAM machine for archiving purposes. The Version field
and the filename display the software version of the snapshot for convenience (e.g.
05_11_10-15-47_snapshot_VER_4_8_0.gz).
Step 4
For backup, download the snapshot to another computer by clicking the Tag Name or the Download
button for the snapshot to be downloaded.
Step 5
In the file download dialog, select the Save File to Disk option to save the file to your local computer.
Step 6
After upgrade, delete all earlier snapshots from the CAM web console as they will no longer be
compatible.
Note
Cisco NAC Appliance creates automatic snapshots before and after software upgrades and failover
events, and preserves the last five entries. For further details, see “Database Recovery Tool” in the Cisco
NAC Appliance - Clean Access Manager Configuration Guide, Release 4.8.
Download the Upgrade File
This section describes how to access and download the upgrade file to your local machine.
Step 1
Log in to the Cisco Software Download Site at http://www.cisco.com/public/sw-center/index.shtml. You
will likely be required to provide your CCO credentials.
Step 2
Navigate to Security > Endpoint Security > Cisco Network Access Control > Cisco NAC Appliance
> Cisco NAC Appliance 4.8.
Step 3
Navigate to the Cisco NAC Appliance 4.8(3) subdirectory, download the latest 4.8(3) upgrade file
(depending on the Cisco NAC Appliance release from which you are upgrading), and save this file to the
local computer from which you are accessing the CAM web console.:
•
If upgrading from Release 4.6(1)—download the cca_upgrade-4.8.3-from-4.6.x.tar.gz upgrade file
•
If upgrading from Release 4.7(x) or 4.8(x)—download the
cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz upgrade file
Copy the Upgrade File to the CAS/CAM
This section describes how to copy the upgrade file to the Clean Access Manager and Clean Access
Server(s) respectively using WinSCP, SSH File Transfer, or PSCP as described below.
If Using the Release 4.8, Release 4.7(x), or Release 4.6(1) CAM/CAS Web Console
Step 1
Access the CAM software update web console page by navigating to Administration > CCA Manager
> Software Upload and/or the CAS software upgrade web console page by navigating to
Administration > Software Upload.
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Step 2
Step 3
Click Browse to navigate to the directory on your local machine where you have stored the Release
4.8(3) .tar.gz upgrade file. Depending on the Cisco NAC Appliance release from which you are
upgrading, the upgrade image name is one of the following:
•
If upgrading from Release 4.7(x) or 4.8—download the cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz
upgrade file
•
If upgrading from Release 4.6(1)—download the cca_upgrade-4.8.3-from-4.6.x.tar.gz upgrade file
Click Upload. After a brief time, the web console screen automatically refreshes, displaying the newly
uploaded Release 4.8(3) upgrade image and the date/time when it was uploaded to the CAM/CAS.
If Using WinSCP or SSH File Transfer
Step 1
Access the CAM via WinSCP or SSH File Transfer.
Step 2
Copy the cca_upgrade-4.8.3-from-4.6.x.tar.gz or cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz file from
your local machine to the /store directory on the Clean Access Manager.
Step 3
Access each CAS via WinSCP or SSH File Transfer.
Step 4
Copy the cca_upgrade-4.8.3-from-4.6.x.tar.gz or cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz file from
your local machine to the /store directory on each Clean Access Server.
If Using PSCP
Step 1
Open a command prompt on your Windows computer.
Step 2
Cd to the path where your PSCP resides (e.g, C:\Documents and Settings\desktop).
Step 3
Enter the following command to copy the file to the /store directory on the CAM:
pscp cca_upgrade-4.8.3-from-4.6.x.tar.gz [email protected]<ipaddress_manager>:/store
or
pscp cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz [email protected]<ipaddress_manager>:/store
Step 4
Enter the following command to copy the file to the /store directory on the CAS (copy to each CAS):
pscp cca_upgrade-4.8.3-from-4.6.x.tar.gz [email protected]<ipaddress_server>:/store
or
pscp cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz [email protected]<ipaddress_server>:/store
Run the Upgrade Script on a Release 4.7(x) or 4.8(x) CAM/CAS
This section describes how to untar the upgrade file and run the script to upgrade standalone CAM/CAS
machines from release 4.7(x) or 4.8(x) to release 4.8(3). You will need to login with your CAM and CAS
root user passwords and access the command line of the CAM or CAS machine using one of the
following methods:
•
Direct console connection using KVM or keyboard/monitor connected directly to the machine
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•
SSH connection
•
Serial console connection (e.g. HyperTerminal or SecureCRT) from an external workstation
connected to the machine via serial cable
When run, the upgrade script automatically determines whether the machine is a Clean Access Manager
(CAM) or Clean Access Server (CAS) and executes accordingly.
Note
The 4.8(3) upgrade script only executes if the current system is a supported Cisco NAC Appliance
platform. Otherwise, the script exits with message “Unable to upgrade, not a recommended hardware
platform for 4.8(3)”.
Step 1: Upgrade the Release 4.7(x) CAS
Step 1
Connect to the Clean Access Server to upgrade using a console connection, or Putty or SSH.
Step 2
Log in as user root with root password.
Step 3
Change directory to /store:
cd /store
Step 4
Locate the upgrade file. If you used WinSCP, SSH File Transfer, or PSCP, the upgrade filename is
cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz.
ls -l
Step 5
Extract the contents of the downloaded upgrade file:
tar xzvf cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz
The extraction process automatically places the upgrade files and necessary upgrade script in the
/cca_upgrade-4.8.3 directory.
Step 6
Change to the /cca_upgrade-4.8.3 directory and execute the upgrade process:
cd cca_upgrade-4.8.3
./UPGRADE.sh
Step 7
Wait for the upgrade to complete. This will take several minutes.
Finished upgrading the system to 4.8.3
Upgrade is complete.
Changes require a REBOOT
Step 8
When upgrade is done, reboot the CAS at the prompt:
reboot
Step 9
Verify whether or not the upgrade was successful by logging into the CAS CLI and entering the
following commands:
cd /perfigo/common/bin/
./showstate.sh | grep INCORRECT
If you do not see any output from the “grep INCORRECT” portion of the command, then your appliance
has been upgraded successfully.
If your system returns any “INCORRECT” statements from the upgrade process, enter ./showstate.sh
again to capture the entire upgrade process output (including all CORRECT and INCORRECT entries)
and save it to an easily accessible location on your local machine along with your backup snapshot you
created in Create CAM DB Backup Snapshot, page 74 to help debug any upgrade issues.
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Step 10
Tip
Repeat steps 1 through 9 for each CAS managed by the CAM.
You can run cat /perfigo/build to verify the software version before and after upgrade.
Step 2: Upgrade the Release 4.7(x) or 4.8 CAM
Step 1
Connect to the Clean Access Manager to upgrade using a console connection, or Putty or SSH.
Step 2
Log in as user root with root password.
Step 3
Change directory to /store:
cd /store
Step 4
Locate the upgrade file. If you used WinSCP, SSH File Transfer, or PSCP, the upgrade filename is
cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz.
ls -l
Step 5
Extract the contents of the downloaded upgrade file:
tar xzvf cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz
The extraction process automatically places the upgrade files and necessary upgrade script in the
/cca_upgrade-4.8.3 directory.
Step 6
Change to the /cca_upgrade-4.8.3 directory and execute the upgrade process:
cd cca_upgrade-4.8.3
./UPGRADE.sh
Step 7
When prompted to update the Windows Agent, specify y or n to upgrade the Agent or retain the current
Agent version.
Stopping the perfigo service...
Currently installed Windows NAC Agent version is 4.7.1.15. Do you want to change the
Windows NAC Agent to version 4.8.3.9 (y/n)? [y] y
Currently installed Mac Agent version is 4.7.0.2. Do you want to change the Mac Agent to
version 4.8.3.594 (y/n)? [y] y
Going to upgrade the manager rpm
Windows NAC Agent version updated to 4.8.3.9.
Mac Agent version updated to 4.8.3.594.
Step 8
Wait for the upgrade to complete. This will take several minutes.
Finished upgrading the system to 4.8.3
Upgrade is complete.
Changes require a REBOOT
Step 9
When upgrade is done, reboot the CAM at the prompt:
reboot
Step 10
Verify whether or not the upgrade was successful by logging into the CAM CLI and entering the
following commands:
cd /perfigo/common/bin/
./showstate.sh | grep INCORRECT
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If you do not see any output from the “grep INCORRECT” portion of the command, then your appliance
has been upgraded successfully.
If your system returns any “INCORRECT” statements from the upgrade process, enter ./showstate.sh
again to capture the entire upgrade process output (including all CORRECT and INCORRECT entries)
and save it to an easily accessible location on your local machine along with your backup snapshot you
created in Create CAM DB Backup Snapshot, page 74 to help debug any upgrade issues.
Tip
You can run cat /perfigo/build to verify the software version before and after upgrade.
Run the Upgrade Script on a Release 4.6(1) CAM/CAS
This section describes how to untar the upgrade file and run the script to upgrade standalone CAM/CAS
machines from Release 4.6(1) to Release 4.8(3). If you are upgrading an existing Release 4.7(x) or 4.8
CAM/CAS, see Run the Upgrade Script on a Release 4.7(x) or 4.8(x) CAM/CAS, page 76. You need to
login with your CAM and CAS root user passwords and access the command line of the CAM or CAS
machine using one of the following methods:
•
Direct console connection using KVM or keyboard/monitor connected directly to the machine
•
Serial console connection (for example, HyperTerminal or SecureCRT) from an external
workstation connected to the machine via serial cable
When run, the upgrade script automatically determines whether the machine is a Clean Access Manager
(CAM) or Clean Access Server (CAS) and executes accordingly.
Note
The 4.8(3) upgrade script only executes if the current system is a supported Cisco NAC Appliance
platform. Otherwise, the script exits with message “Unable to upgrade, not a recommended hardware
platform for 4.8(3)”.
Step 1: Upgrade the Release 4.6(1) CAS
Step 1
Connect to each machine in the failover pair via console connection (keyboard/monitor/KVM).
Step 2
Log in as user root with root password.
Step 3
Change directory to /store:
cd /store
Step 4
Locate the upgrade file. If you used WinSCP, SSH File Transfer, or PSCP, the upgrade filename is
cca_upgrade-4.8.3-from-4.6.x.tar.gz.
ls -l
Step 5
Extract the contents of the downloaded upgrade file:
tar xzvf cca_upgrade-4.8.3-from-4.6.x.tar.gz
The extraction process automatically places the upgrade files and necessary upgrade script in the
/cca_upgrade-4.8.3 directory.
Step 6
Change to the /cca_upgrade-4.8.3 directory and execute the upgrade process:
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cd cca_upgrade-4.8.3
./UPGRADE.sh
Step 7
Specify whether you want to run the upgrade session via direct console connection or over a serial
console line.
After setting up the system for upgrade, upgrade will run
in Standard or Serial console as per selection below.
Please choose one of the following actions:
1)
2)
3)
4)
Upgrade over Standard console (monitor and keyboard).
Upgrade over Serial console.
Upgrade without user interaction.
Exit upgrade.
3
Note
Step 8
When you perform this upgrade on a Cisco NME-NAC network module, the option to perform the
upgrade over the serial console connection is not available.
When prompted, enter the Master Secret for the CAS.
The master secret is used to encrypt sensitive data.
Remember to configure all HA pairs with the same secret.
Please enter the master secret:
Please confirm the master secret:
After reboot, upgrade will proceed without user interaction.
Upgrade will take 20-30 minutes to complete. Once upgrade completes, machine is rebooted
and will be available for ssh login.
After logging back in, please check the log at /root/nac-install.log.
If the upgrade is successful, the log file should contain "Upgrade completed
successfully.".
nac-upgrade: ready to reboot. Press <ENTER> to reboot
Note
The above text is displayed when you have selected the “Upgrade without user interaction” option in
Step 7. For the other options in Step 7, the text may be different. Follow the instructions that appear on
the screen to proceed.
Step 9
Press Enter and wait for the upgrade to complete. The time taken for an upgrade depends on both the
appliance configuration and database size.
Step 10
After the upgrade is complete, make sure that the appliance is up. Use the ping command to make sure
that the appliance is reachable.
ping <appliance IP address>
Once the appliance is reachable, SSH into the appliance to verify connectivity before proceeding with
the set up for the CAM.
Step 11
Verify whether or not the upgrade was successful by logging into the CAS CLI and entering the
following commands:
cd /perfigo/common/bin/
./showstate.sh | grep INCORRECT
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If you do not see any output from the “grep INCORRECT” portion of the command, then your appliance
has been upgraded successfully.
If your system returns any “INCORRECT” statements from the upgrade process, enter ./showstate.sh
again to capture the entire upgrade process output (including all CORRECT and INCORRECT entries)
and save it to an easily accessible location on your local machine along with your backup snapshot you
created in Create CAM DB Backup Snapshot, page 74 to help debug any upgrade issues.
Step 12
Tip
Repeat steps 1 through 11 for each CAS managed by the CAM.
You can run cat /perfigo/build to verify the software version before and after upgrade.
Step 2: Upgrade the Release 4.6(1) CAM
Note
This upgrade procedure automatically updates the Cisco NAC Agent and Mac OS X Agent to the latest
versions packaged with the Release 4.8(3) .tar.gz upgrade image.
Step 1
Connect to each machine in the failover pair via console connection (keyboard/monitor/KVM).
Step 2
Log in as user root with root password.
Step 3
Change directory to /store:
cd /store
Step 4
Locate the upgrade file. If you used WinSCP, SSH File Transfer, or PSCP, the upgrade filename is
cca_upgrade-4.8.3-from-4.6.x.tar.gz.
ls -l
Step 5
Extract the contents of the downloaded upgrade file:
tar xzvf cca_upgrade-4.8.3-from-4.6.x.tar.gz
The extraction process automatically places the upgrade files and necessary upgrade script in the
/cca_upgrade-4.8.3 directory.
Step 6
Change to the /cca_upgrade-4.8.3 directory and execute the upgrade process:
cd cca_upgrade-4.8.3
./UPGRADE.sh
Step 7
Specify whether you want to run the upgrade session via direct console connection or over a serial
console line.
After setting up the system for upgrade, upgrade will run
in Standard or Serial console as per selection below.
Please choose one of the following actions:
1)
2)
3)
4)
Upgrade over Standard console (monitor and keyboard).
Upgrade over Serial console.
Upgrade without user interaction.
Exit upgrade.
3
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Note
Step 8
When you perform this upgrade on a Cisco NME-NAC network module, the option to perform the
upgrade over the serial console connection is not available.
When prompted, enter the Master Secret for the CAM.
The master secret is used to encrypt sensitive data.
Remember to configure all HA pairs with the same secret.
Enter the master secret:
Confirm the master secret:
After reboot, upgrade proceeds without user interaction.
Upgrade takes 20-30 minutes to complete. Once upgrade completes, machine reboots and is
available for ssh login.
After logging back in, please check the log at /root/nac-install.log.
If the upgrade is successful, the log file should contain "Upgrade completed
successfully.".
nac-upgrade: ready to reboot. Press <ENTER> to reboot
Step 9
Press Enter and wait for the upgrade to complete. The time taken for an upgrade depends on both the
appliance configuration and database size.
Step 10
After the upgrade is complete, make sure that the appliance is up. Use the ping command to make sure
that the appliance is reachable.
ping <appliance IP address>
Once the appliance is reachable, SSH into the appliance to verify connectivity.
Step 11
Verify whether or not the upgrade was successful by logging into the CAM CLI and entering the
following commands:
cd /perfigo/common/bin/
./showstate.sh | grep INCORRECT
If you do not see any output from the “grep INCORRECT” portion of the command, then your appliance
has been upgraded successfully.
If your system returns any “INCORRECT” statements from the upgrade process, enter ./showstate.sh
again to capture the entire upgrade process output (including all CORRECT and INCORRECT entries)
and save it to an easily accessible location on your local machine along with your backup snapshot you
created in Create CAM DB Backup Snapshot, page 74 to help debug any upgrade issues.
Tip
You can run cat /perfigo/build to verify the software version before and after upgrade.
Upgrade Instructions for HA Pairs
In Cisco NAC Appliance release 4.8(3), you can now use a .tar.gz upgrade process similar to that used
for upgrading CAM/CAS appliances in earlier releases of Cisco NAC Appliance (like the process used
in Release 4.6(1) and Release 4.7(2)) instead of having to perform “in-place” upgrades via an .ISO image
on a CD-ROM, as is required to upgrade to Cisco NAC Appliance release 4.7(0) and 4.7(1).
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See Release 4.8(3) Upgrade Instructions for HA Pairs, page 83 to upgrade your HA Pair CAM/CAS
appliances.
Release 4.8(3) Upgrade Instructions for HA Pairs
This section describes how to upgrade high-availability (HA) pairs of CAM or CAS servers from Release
4.6(1), 4.7(x), or 4.8 to Release 4.8(3), and only applies to Cisco NAC-3310/3350/3390 or Cisco
NAC-3315/3355/3395 platforms. If you have standalone CAM/CAS servers, refer instead to Upgrade
Instructions for Standalone Machines, page 74.
Note
You cannot use the Release 4.8(3) .ISO CD-ROM to perform an upgrade. You must use the .tar.gz
upgrade file method.
Note
To support FIPS 140-2 compliance, HA CAMs/CASs automatically establish an IPSec tunnel to ensure
all communications between the HA pair appliances remains secure across the network.
Warning
If you are using serial connection for HA, do not attempt to connect serially to the CAS during the
upgrade procedure. When serial connection is used for HA, serial console/login will be disabled and
serial connection cannot be used for installation/upgrade.
If you are using serial connection for HA, BIOS redirection to the serial port must be disabled for Cisco
NAC Appliance CAMs/CASs, and for any other server hardware platform that supports the BIOS
redirection to serial port functionality.
Note
If you are changing the master secret for the CAM, ensure that both the CAMs are configured with the
same master secret. If the master secret is different, when the standby CAM tries to come up, the perfigo
service is stopped. Refer to CSCtd14712, page 55 for more details.
Note
For additional details on CAS HA requirements, see also Supported Hardware and System Requirements
for Cisco NAC Appliance (Cisco Clean Access).
Review Changes for 4.8(3) Upgrade, page 70 and General Preparation for Upgrade, page 72 before
proceeding with these upgrade instructions.
Upgrading HA-CAM and HA-CAS Pairs
The following steps show the recommended way to upgrade an existing high-availability (failover) pair
of Clean Access Managers or Clean Access Servers.
Warning
Make sure to carefully execute the following procedure to prevent the CAM database from getting out
of sync.
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Step 1
Step 2
Download and save the upgrade file to your local PC, as described in Download the Upgrade File,
page 75. Be sure you download the correct file, depending upon the existing Cisco NAC Appliance
release from which you are upgrading:
•
If upgrading from Release 4.7(x) or 4.8(x)—download the
cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz upgrade file
•
If upgrading from Release 4.6(1)—download the cca_upgrade-4.8.3-from-4.6.x.tar.gz upgrade file
From either a console connection (keyboard/monitor/KVM) or via SSH, connect to the individual IP
address of each machine in the failover pair.
Do not connect to the Service IP of the pair, as you will lose connection during the upgrade.
Note
Step 3
Copy the upgrade image to each CAM/CAS machines’ /store directory as described in Copy the Upgrade
File to the CAS/CAM, page 75.
Step 4
Login as the root user with the root password.
Step 5
Change directory to /store:
cd /store
Step 6
Locate the upgrade file. If you used WinSCP, SSH File Transfer, or PSCP, the upgrade filename is
cca_upgrade-4.8.3-from-4.6.x.tar.gz or cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz, depending on the
Cisco NAC Appliance release from which you are upgrading.
ls -l
Step 7
Extract the contents of the downloaded upgrade file:
tar xzvf cca_upgrade-4.8.3-from-4.7.x-4.8.x.tar.gz
or
tar xzvf cca_upgrade-4.8.3-from-4.6.x.tar.gz
The extraction process automatically places the upgrade files and necessary upgrade script in the
/cca_upgrade-4.8.3 directory.
Step 8
Before proceeding, determine the failover state on each machine by changing directory and running the
fostate.sh command on each machine:
cd /perfigo/common/bin/
./fostate.sh
The results should be either “My node is active, peer node is standby” or “My node is standby, peer node
is active”. No nodes should be dead. This should be done on both appliances, and the results should be
that one appliance considers itself active and the other appliance considers itself in standby mode. Future
references in these instructions that specify “active” or “standby” refer to the results of this test as
performed at this time.
Note
The fostate.sh command is part of the upgrade script. You can also determine which appliance is
active or standby as follows:
•
Access the web console as described in “Accessing Web Consoles in High Availability Pairs”
sections of the “Configuring High Availability” chapter in the Cisco NAC Appliance Hardware
Installation Guide, Release 4.8.
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•
Step 9
SSH to the Service IP of the CAM/CAS pair, and type ifconfig eth0. The Service IP will always
access the active CAM or CAS, with the other pair member acting as standby.
Stop services on the standby appliance by entering the following command via the console/SSH
terminal:
For CAM—service perfigo stop
For CAS—service perfigo maintenance
Step 10
Wait until the standby appliance has suspended services.
Step 11
Change directory and run the fostate.sh command on the active appliance:
cd /perfigo/common/bin/
./fostate.sh
Make sure this returns “My node is active, peer node is dead” before continuing.
Step 12
Upgrade the active appliance as follows:
a.
Make sure the upgrade package is untarred in the /store directory on the active appliance.
b.
From the untarred upgrade directory created on the active appliance (for example
cca_upgrade-4.8.3), run the upgrade script on the active appliance:
./UPGRADE.sh
c.
For the CAM only, when prompted to update the Windows Agent, specify y or n to upgrade the
Agent or retain the current Agent version.
Choose whether to upgrade Windows Agent to 4.8.3.9 (It's highly recommended to
upgrade) (y/n)? [y]
Choose whether to upgrade Mac Agent to 4.8.3.594 (It's highly recommended to upgrade)
(y/n)? [y]
Step 13
After upgrade, stop services on the active appliance by entering the following command via the
console/SSH terminal:
service perfigo stop
Wait till the active appliance suspends services.
Step 14
Restart services on the standby appliance by entering the following command via the console/SSH
terminal:
service perfigo start
Step 15
Upgrade the standby appliance as follows:
a.
Make sure the upgrade package is untarred in the /store directory on the standby appliance.
b.
Change to the untarred upgrade directory created on the standby appliance:
cd cca_upgrade-4.8.3
c.
Run the upgrade script on the standby appliance:
./UPGRADE.sh
d.
For the CAM only, when prompted to update the Windows Agent, specify y or n to upgrade the
Agent or retain the current Agent version.
Choose whether to upgrade Windows Agent to 4.8.3.9 (It's highly recommended to
upgrade) (y/n)? [y]
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Choose whether to upgrade Mac Agent to 4.8.3.594 (It's highly recommended to upgrade)
(y/n)? [y]
Step 16
Verify whether or not the upgrade was successful by logging into the CLI of each CAM/CAS upgraded
in the HA pair and entering the following commands:
cd /perfigo/common/bin/
./showstate.sh | grep INCORRECT
If you do not see any output from the “grep INCORRECT” portion of the command, then your appliance
has been upgraded successfully.
If your system returns any “INCORRECT” statements from the upgrade process, enter ./showstate.sh
again to capture the entire upgrade process output (including all CORRECT and INCORRECT entries)
and save it to an easily accessible location on your local machine along with your backup snapshot you
created in Create CAM DB Backup Snapshot, page 74 to help debug any upgrade issues.
Step 17
After the upgrade is completed, stop services on the standby appliance by entering the following
command via the console/SSH terminal:
service perfigo stop
Step 18
Reboot the active appliance by entering the following command via the console/SSH terminal:
reboot
Wait until it is running normally and you are able to connect to the web console.
Step 19
Reboot the standby appliance by entering the following command via the console/SSH terminal:
reboot
Note
There is approximately 2-5 minutes of downtime while the appliances reboot.
Known Issues for Cisco NAC Appliance
This section describes known issues when integrating Cisco NAC Appliance:
•
Known Issue with CAS-to-CAM Certificate Verification in Internet Explorer
•
Known Issue with Delayed IP Address Refresh for Windows 7/Vista Clients Running Cisco NAC
Agent
•
Known Issue with Enabling Web Login for Windows 7 Starter Edition Clients
•
Known Issue with Mass DHCP Address Deletion
•
Known Issue for VPN SSO Following Upgrade to Release 4.5 and Later
•
Known Issues with Web Upgrade in Release 4.1(3), 4.1(6), and 4.1(8)
•
Known Issue with Active HA CAM Web Console Following Failover
•
Known Issue with Cisco NAC Appliance CAM/CAS Boot Settings
•
Known Issue with IP Packet Fragmentation Leading to Disconnect Between CAS and Agent
•
Known Issues with Switches
•
Known Issues with Cisco 2200/4400 Wireless LAN Controllers (Airespace WLCs)
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•
Known Issue for Windows Vista and IP Refresh/Renew
•
Known Issue While Upgrading to NAC Appliance Release 4.8(3)
•
Known Issue with System Center Endpoint Protection
Known Issue with CAS-to-CAM Certificate Verification in Internet Explorer
When launching the CAM web console in Release 4.8(3) using Internet Explorer, you may see a “Choose
a digital certificate” pop-up dialog with no options available in the selection window. This pop-up is a
result of the way the CAM verifies CAS-to-CAM certificates for communication. If you click OK or
Cancel, the dialog disappears and you can continue the web console session normally. If you want to
ensure this pop-up does not appear in the future. you can apply the following custom security setting in
Internet Explorer:
Note
1.
Go to Tools > Internet Options, click on the Security tab, and click Custom Level.
2.
Scroll down and enable the Don’t prompt for client certificate selection when no certificate or
only one certificate exists option.
3.
Click OK.
This issue is not observed when accessing the CAM with Mozilla Firefox or Google Chrome browsers.
Known Issue with Delayed IP Address Refresh for Windows 7/Vista Clients
Running Cisco NAC Agent
The IP address release/renew process for Windows 7 and Windows Vista client machines running Cisco
NAC Agent version 4.8.0.x that move from the authentication to access VLAN can take as long as 4
minutes to complete.
This situation can occur when the Network Connectivity Status Indicator, which is part of the Network
Location Awareness in Windows, tries to reach the msftncsi.com web page while refreshing the client
machines IP address. When the client machine cannot reach this page, Windows 7 and Windows Vista
take longer to sense the machine’s status, thus slowing down applications requiring internet access.
For reference, see:
•
http://technet.microsoft.com/en-us/library/cc766017(WS.10).aspx
•
http://technet.microsoft.com/en-us/library/ee126135(WS.10).aspx
To resolve this issue, open the following sites using host traffic policies in any user roles associated with
the client login session (Unauthenticated/Quarantine, Temporary, and standard user login roles):
•
ncsi.glbdns.microsoft.com equals Microsoft NCSI check
•
.msftncsi.com ends Microsoft NCSI check
The administrator can also use a utility like Microsoft SMS to pass a registry update disabling this option
in the Windows registry on client machines.
See CSCtg06599 for more information.
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Known Issue with Enabling Web Login for Windows 7 Starter Edition Clients
Note
This known issue applies only to Cisco NAC Agent version 4.7.1.511 and Cisco NAC Web Agent version
4.7.1.504. The latest versions of the Cisco NAC Agent (version 4.7.2.10 and later) and Cisco NAC Web
Agent (version 4.7.2.5 and later) support Windows 7 Starter Edition.
Cisco NAC Agent version 4.7.1.511 and Cisco NAC Web Agent version 4.7.1.504 do not support
Windows 7 Starter Edition. Client machines with the Windows 7 Starter Edition operating system can
only perform web login to verify user credentials when logging into the network via Cisco NAC
Appliance Release 4.7(1). The solution to simultaneously provide Cisco NAC Appliance support for web
login on Windows 7 Starter Edition client machines as well as Agent login for other Windows operating
systems requires the administrator to add a web login page that classifies Windows 7 Starter Edition in
a “WINDOWS_ALL” operating system context. To enable web login functions for client machines
running Windows 7 Starter Edition:
•
Users must perform web login using Internet Explorer version 8.0 with ActiveX only (Java Applet
is not supported)
•
The Cisco NAC Appliance administrator must use the CAM Administration > User Pages > Login
Page web console page to create a login page for the “WINDOWS_ALL” operating system that:
– Requires the “ActiveX Only” Web Client setting
– Enables the “Use web client to detect MAC address and Operating System” option to
appropriately reflect the Windows 7 Starter Edition operating system on the client machine
Known Issue with Mass DHCP Address Deletion
An issue exists in Release 4.5(1) and later where a Clean Access Server configured to be a DHCP server
can become unmanageable if the administrator attempts to delete more than 800 DHCP addresses from
the appliance using the Clean Access Manager web console. If you have more than 800 DHCP addresses,
Cisco recommends deleting addresses in smaller blocks of no more than 800 addresses at a time.
In addition to ensuring you do not delete more than 800 DHCP addresses at a time, there are two methods
to work around this potential issue.
Workaround 1
The DHCP IP delete can be done manually by connecting to the CLI and executing the following
commands:
service perfigo stop
rm -f /var/state/dhcp/dhcpd.leases
touch /var/state/dhcp/dhcpd.leases
service perfigo start
If on an HA system, Cisco strongly recommends taking the CASs offline and performing the commands
on both machines simultaneously, taking particular care to issue the service perfigo start on the two
appliances at roughly the same time.
Workaround 2
If you experience this problem more than once, Cisco recommends changing the Clean Access Manager
timeout value by editing the /perfigo/control/bin/starttomcat file and adding
“-DRMI_READ_TIME_OUT=<new value>” to the end of the CATALINA_OPTS options string. (The
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current default value is 60 seconds, and Cisco does not recommend increasing the timeout value to any
more than 300 seconds.) Please note that increasing the read time out value can likely lower the
resiliency of WAN deployments, thus reversing the CAM/CAS connectivity improvements introduced
when Cisco addressed caveat CSCsw20607 in the Release Notes for Cisco NAC Appliance, Version
4.5(1).
Note
In Release 4.6(1) and later, the CAM only allows 60 seconds for a response on remote calls to the CAS.
This impacts deleting hundreds of DHCP IPs at once, particularly on slower CAS hardware platforms.
Cisco recommends that you do not delete any more than 3 class C address segments at once.
For more information, see CSCsx35438, page 31.
Known Issue for VPN SSO Following Upgrade to Release 4.5 and Later
When you upgrade your Cisco NAC Appliance network employing VPN SSO to Release 4.5 and later,
user login does not work properly when the user VPN is part of a managed subnet on the CAS.
In Release 4.5 and later, the SWISS protocol checks the MAC address for Layer 2 clients, but the MAC
address reported by the Agent (which is the real client MAC address) is different from the one the CAS
gets for the client (the VPN concentrator MAC address). As a result, the SWISS protocol tells the Agent
that the client machine is not logged in (due to the different MAC addresses recorded) and the Agent
launches the login dialog repeatedly, never able to complete login. Prior to Release 4.5, the Clean Access
Server associates the client with the VPN IP address and VPN Concentrator’s MAC address after the first
login. From there, the SWISS protocol only checks the IP address from the Agent and reports back to
the Agent that the client is logged in (regardless of whether the client is connected via Layer 2 or Layer
3).
To work around this issue, remove the subnet making up the client machine address pool from the
collection of managed subnets and create a Layer 3 static route on the CAS untrusted interface (eth1)
with VPN concentrator’s IP address as the gateway for the VPN subnet using the CAM web console
Device Management > CCA Servers > Manage [CAS_IP] > Advanced > Static Routes page.
Known Issues with Web Upgrade in Release 4.1(3), 4.1(6), and 4.1(8)
In Cisco NAC Appliance Release 4.8, web upgrade is no longer supported and cannot be used to upgrade
Cisco NAC Appliances on Release 4.1(3) and later. To upgrade your Cisco NAC Appliances from
Release 4.1(3) and later, you must run the upgrade script via the in-place Install/Upgrade CD method,
as described in Upgrading to Release 4.8(3), page 67.
Note
To upgrade from Cisco NAC Appliance Release 4.1(8) or earlier to Release 4.8, you must first upgrade
your system to Release 4.6(1), 4.7(0), 4.7(1), or 4.7(2) and then upgrade to Release 4.8.
Known Issue with Active HA CAM Web Console Following Failover
For a brief period following a failover event, the administrator web console for the newly “active” CAM
retains the limited menu/submenu options previously available while the machine was still the “standby”
CAM.
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To manually reproduce this scenario:
1.
Configure the HA-CAM failover pair.
2.
Issue the service perfigo stop CLI command on both HA-CAMs to stop services.
3.
Issue the service perfigo start CLI command on the HA-Standby CAM to restart services.
4.
As soon as the service perfigo start command finishes, access the HA-Service IP address in a
browser for the administrator web console, enter authentication credentials, and click Login.
5.
The CAM HA-Service IP administrator web console displays the limited menu/submenu options
previously available while the machine was still the “standby” CAM.
To get the administrator web console to display properly, simply reload (Ctrl-refresh) the CAM
HA-Service IP/hostname web page to display the full GUI for the now “active” CAM.
Known Issue with Cisco NAC Appliance CAM/CAS Boot Settings
When performing CD software installation, if a Cisco NAC Appliance CAM/CAS does not read the
software on the CD ROM drive, and instead attempts to boot from the hard disk, you will need to
configure the appliance BIOS settings to boot from CD ROM before attempting to re-image or upgrade
the appliance from CD. For detailed steps, refer to the “Configuring Boot Settings on the Cisco NAC
Appliance CAM/CAS” section of the Cisco NAC Appliance Hardware Installation Guide, Release 4.8.
Client machines going across a GRE tunnel in the network are unable to authenticate and the agent does
not popup.
Known Issue with IP Packet Fragmentation Leading to Disconnect Between
CAS and Agent
TCP traffic between the Agent and CAS can break down if the overall network path MTU is smaller than
the MTU needed for the CAS to send unfragmented packets and the packet coming from the CAS to the
Agent has the “do not fragment” setting enabled.
Note
This scenario has been observed with TCP SSL packets and generally only applies to authentication,
posture, and discovery host traffic. This issue does not apply to traffic that is not directed specifically to
the CAS/Discovery Host.
To address this issue, apply one of the following solutions to your network:
•
Set the IP TCP adust-mss for the GRE tunnel according to the guidelines at
http://www.cisco.com/en/US/docs/ios/12_2t/12_2t4/feature/guide/ft_admss.html.
•
Remove the “do not fragment” setting from the packet using a route map, as described in at
http://www.cisco.com/en/US/tech/tk827/tk369/technologies_white_paper09186a00800d6979.shtm
l
Example configuration:
interface FastEthernet0/0
ip address 10.32.32.101 255.255.255.0
ip policy route-map removedontfrag
duplex auto
speed auto
!
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access-list 101 permit tcp host
access-list 101 permit tcp host
access-list 101 permit tcp host
!
route-map removedontfrag permit
match ip address 101
set ip df 0
10.255.253.152 any
10.255.252.152 any
1.1.1.1 any
10
NOTE: 10.255.253.152 is the trusted IP Address of the CAS
NOTE: 10.255.252.152 is the trusted IP Address of the CAS
NOTE: 1.1.1.1 is the discovery host resolved IP Address.
Known Issues with Switches
For complete details, see Cisco NAC Appliance Switch and Wireless LAN Controller Support.
Known Issues with Cisco 2200/4400 Wireless LAN Controllers (Airespace
WLCs)
Due to changes in DHCP server operation with Cisco NAC Appliance Release 4.0(2) and later, networks
with Cisco 2200/4400 Wireless LAN Controllers (also known as Airespace WLCs) which relay requests
to the Clean Access Server (operating as a DHCP server) may have issues. Client machines may be
unable to obtain DHCP addresses. Refer to the “Cisco 2200/4400 Wireless LAN Controllers (Airespace
WLCs) and DHCP” section of Cisco NAC Appliance Switch and Wireless LAN Controller Support for
detailed instructions.
Note
For further details on configuring DHCP options, refer to the applicable version of the Cisco NAC
Appliance - Clean Access Server Configuration Guide, Release 4.8(3).
Note
This known issue does not affect Wireless Out-of-Band deployments because CASs are only deployed
in Virtual Gateway mode, thus the CAS is not configured to perform any DHCP functions.
Known Issue for Windows Vista and IP Refresh/Renew
When logged in as a machine admin on Windows Vista and using web login with IP refresh configured,
IP address refresh/renew via ActiveX or Java will fail due to the fact that Internet Explorer does not run
as an elevated application and Vista requires elevated privileges to release and renew an IP address.
Workaround
In order to use the IP refresh feature, you will need to:
1.
Log into the Windows Vista client as an administrator.
2.
Create a shortcut for IE on your desktop.
3.
Launch it by right-clicking the shortcut and running it as administrator. This will allow the
application to complete the IP Refresh/Renew. Otherwise, the user will need to do it manually via
Command Prompt running as administrator. This is a limitation of the Windows Vista OS.
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See also CSCsm61077, page 25.
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Known Issue While Upgrading to NAC Appliance Release 4.8(3)
While upgrading to Cisco NAC Appliance Release 4.8(3), there is a possibility of the existing CAM
database containing orphan data. Before upgrading to Cisco NAC Appliance Release 4.8(3), it is
recommended to remove the orphan data that may be available in the existing CAM database.
To identify and remove the orphan data:
Step 1
Login to CAM CLI using SSH or Telnet. Go to the /tmp directory.
cd /tmp
Step 2
Run the following commands in the /tmp directory. The commands store the report IDs from the
database tables dm_report_av and dm_report to text files.
psql -h 127.0.0.1 controlsmartdb -U postgres -A -q
dm_report_av order by report_id" > dm_report_av.txt
psql -h 127.0.0.1 controlsmartdb -U postgres -A -q
dm_report order by report_id" > dm_report.txt
Step 3
-c "select distinct report_id from
-c "select distinct report_id from
Run the following command to get orphan data from the dm_report_av table:
diff -c -b dm_report_av.txt dm_report.txt | grep "^- "
For example, assume that you get the following output after running the above command.
- 169519
- 169520
The above output means that data with identifiers 169519 and 169520 are available in dm_report_av
table but there is no corresponding data in dm_report table. This is the orphan data existing in the
dm_report_av table. You must delete this data.
Note
Step 4
If there is no ouput from the above command, the data is correct and there is no need to delete anything.
Run the following command to store the report IDs from the dm_report_soft table.
psql -h 127.0.0.1 controlsmartdb -U postgres -A -q -c "select distinct report_id from
dm_report_soft order by report_id" > dm_report_soft.txt
Run the following command to get orphan data from the dm_report_soft table.
diff -c -b dm_report_soft.txt dm_report.txt | grep "^- "
For example, assume that you get the following output after running the above command.
- 169519
- 169520
The above output means that data with identifiers 169519 and 169520 are available in dm_report_soft
table but there is no corresponding data in dm_report table. This is the orphan data existing in the
dm_report_soft table. You must delete this data.
Note
Step 5
Caution
If there is no output from the above command, the data is correct and there is no need to delete anything.
To delete the orphan data, run the following commands.
Execute the following commands only if you find orphan data present in the database.
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Troubleshooting
For example, to delete the orphan records with identifiers 169519 and 169520 from the dm_report_av
table, run the following command:
psql -h 127.0.0.1 controlsmartdb -U postgres
report_id in (169519,169520)"
-A
-q
-c "delete from dm_report_av where
To delete the orphan records with identifiers 169519 and 169520 from the dm_report_soft table, run the
following command:
psql -h 127.0.0.1 controlsmartdb -U postgres
report_id in (169519,169520)"
-A
-q
-c "delete from dm_report_soft where
Known Issue with System Center Endpoint Protection
Previously, the Anti Virus product System Center Endpoint Protection 2012 was recognized by the
Compliance Module as System Center Endpoint Protection 2.x. If you are using the updated version of
System Center Endpoint Protection 2012 released by Microsoft, then it is detected as Microsoft Security
Essential 4.x.
Troubleshooting
This section provides troubleshooting information for the following topics:
Note
•
Disabling Administrator Prompt for Certificate on IE 8 and 9
•
Disabling Administrator Prompt for Certificate on IE 8 and 9
•
Windows Vista and Windows 7—IE 7 and IE 8 Certificate Revocation List
•
HA Active-Active Situation Due to Expired SSL Certificates
•
Agent AV/AS Rule Troubleshooting
•
Debug Logging for Cisco NAC Appliance Agents
•
Creating CAM/CAS Support Logs
•
Recovering Root Password for CAM/CAS
•
Troubleshooting SNMP Issues
•
Troubleshooting CAM/CAS Certificate Issues
•
Troubleshooting Switch Support Issues
•
Other Troubleshooting Information
For additional troubleshooting information, see also New Installation of Release 4.8(3), page 65.
Disabling Administrator Prompt for Certificate on IE 8 and 9
If no certificates or only one certificate is installed in the personal store in Windows then there is an
administrator prompt for certificate in IE9. The prompt can be disabled by setting the option on Internet
Explorer.
To disable the prompt:
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Step 1
Go to Tools > Internet Options.
Step 2
Click the Security tab. Select a zone to view or change security settings (that the NAC Manager URL
falls under).
Step 3
Click Custom level under Security level for this zone.
Step 4
Enable Don't prompt for client certificate selection when no certificates or only one certificate exists.
Enabling TLSv1 on Internet Explorer Version 6
Cisco NAC Appliance network administrators managing the CAM/CAS via web console and client
machine browsers accessing a FIPS-compliant Cisco NAC Appliance Release 4.7(0) network require
TLSv1 in order to “talk” to the network, which is disabled by default in Microsoft Internet Explorer
Version 6.
To locate and enable this setting in IE version 6:
Step 1
Got to Tools > Internet Options.
Step 2
Select the Advanced tab.
Step 3
Scroll down to locate the Use TLS 1.0 option under Security.
Step 4
Click on the checkbox to enable the Use TLS 1.0. option and click Apply.
Step 5
Close the browser and open a new one where the TLS 1.0 option should now be automatically enabled,
if necessary.
Note
This option is enabled by default in Microsoft Internet Explorer versions 7 and 8 and Mozilla Firefox
has not shown this limitation.
Windows Vista and Windows 7—IE 7 and IE 8 Certificate Revocation List
Note
In Internet Explorer versions 7 and 8, the “Check for server certificate revocation (requires restart)”
checkbox is enabled by default under IE's Tools > Internet Options > Advanced | Security settings.
In Release 4.6(1) and later, you can use the “AllowCRLChecks” attribute in the NACAgentCFG.xml
file to turn off Certificate Revocation List (CRL) checking for the Cisco NAC Agent during discovery
and negotiation with the CAS. For details, see the “Cisco NAC Agent XML Configuration File Settings”
section in the Cisco NAC Appliance - Clean Access Manager Configuration Guide, Release 4.8(3).
The “Network error: SSL certificate rev failed 12057” error can occur and prevent login for Clean Access
Agent or Cisco NAC Web Agent users in either of the following cases:
1.
The client system is using Microsoft Internet Explorer version 7 or 8 and/or the Windows Vista or
Windows 7 operating system, and the certificate issued for the CAS is not properly configured with
a CRL (Certificate Revocation List).
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2.
A temporary SSL certificate is being used for the CAS and:
– The user has not imported this certificate to the trusted root store.
– The user has not disabled the “Check for server certificate revocation (requires restart)”
checkbox in IE.
To resolve this issue, perform the following actions:
Step 1
(Preferred) When using a CA-signed CAS SSL certificate, check the “CRL Distribution Points” field
of the certificate (including intermediate or root CA), and add the URL hosts to the allowed Host Policy
of the Unauthenticated/Temporary/Quarantine Roles. This will allow the Agent to fetch the CRLs when
logging in.
Step 2
Or, if continuing to use temporary certificates for the CAS, the user will need to perform ONE of the
following actions:
a.
Import the certificate to the client system's trusted root store.
b.
Disable the “Check for server certificate revocation (requires restart)” checkbox under IE's Tools >
Internet Options > Advanced | Security settings.
HA Active-Active Situation Due to Expired SSL Certificates
HA communication for both HA-CAMs and HA-CASs is handled over IPSec tunnels to secure all
communications between the two HA pair appliances. This IPSec tunnel is negotiated based on the SSL
certificates uploaded to the HA pairs for both CAM and CAS. In case the SSL certificates are not trusted
by the two HA peers, have expired, or are no longer valid, the HA heartbeat communication between the
two HA pairs breaks down, leading both HA pair appliances to assume the Active HA-Primary) role.
For CASs deployed in VGW mode, this can potentially create a Layer 2 loop that could bring down the
network. HA-CAMs with expired or invalid SSL certificates could lead to an Active-Active situation
where the database is not synced between the two HA-CAM appliances. Eventually, this situation leads
to the CAMs losing all recent configuration changes and/or all recent user login information following
an HA-CAM failover event.
As HA communication over IPSec tunnels requires valid SSL certificates on both the CAM and CAS,
the CAM-CAS communication also breaks down if the SSL certificate expires on either the CAM or
CAS. This situation leads to end user authentications failures and the CAS reverting to fallback mode
per CAS configuration.
Administrators can minimize HA appliance Active-Active situations due to expired SSL certificates by
using SSL certificates with longer validity periods and/or using serial port connection (if available and
not used to control another CAM or CAS) for HA heartbeat. However, when you configure HA-CAMs
to perform heartbeat functions over the serial link and the primary eth1 interface fails because of SSL
certificate expiration, the CAM returns a database error indicating that it cannot sync with its HA peer
and the administrator receives a “WARNING! Closed connections to peer [standby IP] database! Please
restart peer node to bring databases in sync!!” error message in the CAM web console.
Note
Starting with Cisco NAC Appliance Release 4.7(0), the CAM or CAS generates event log messages to
indicate the certificate expiry in addition to the message displayed in the CAM/CAS web console.
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Note
The self-signed SSL certificate expires after 90 days from the date of generation.
Agent AV/AS Rule Troubleshooting
When troubleshooting AV/AS Rules:
•
View administrator reports for the Agent from Device Management > Clean Access > Clean
Access Agent > Reports
•
Or, to view information from the client, right-click the Agent taskbar icon and select Properties.
When troubleshooting AV/AS Rules, please provide the following information:
1.
Version of CAS, CAM, and Agent (see , page 14).
2.
Version of client OS (e.g. Windows XP SP2).
3.
Version of Cisco Updates ruleset
4.
Product name and version of AV/AS software from the Add/Remove Program dialog box.
5.
What is failing—AV/AS installation check or AV/AS update checks? What is the error message?
6.
What is the current value of the AV/AS def date/version on the failing client machine?
7.
What is the corresponding value of the AV/AS def date/version being checked for on the CAM? (See
Device Management > Clean Access > Clean Access Agent > Rules > AV/AS Support Info.)
8.
If necessary, provide Agent debug logs as described in Debug Logging for Cisco NAC Appliance
Agents, page 97.
9.
If necessary, provide CAM support logs as described in Creating CAM/CAS Support Logs, page 99.
Debug Logging for Cisco NAC Appliance Agents
This section describes how to view and/or enable debug logging for Cisco NAC Appliance Agents. Refer
to the following sections for steps for each Agent type:
•
Generate Cisco NAC Agent Debug Logs
•
Cisco NAC Web Agent Logs
•
Generate Mac OS X Agent Debug Log
Copy these event logs to include them in a customer support case.
Generate Cisco NAC Agent Debug Logs
To generate Cisco NAC Agent logs using the Cisco Log Packager utility, refer to the “Create Agent Log
Files Using the Cisco Log Packager” section of the Cisco NAC Appliance - Clean Access Manager
Configuration Guide, Release 4.8(3).
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Cisco NAC Web Agent Logs
The Cisco NAC Web Agent version 4.1.3.9 and later can generate logs when downloaded and executed.
By default, the Cisco NAC Web Agent writes the log file upon startup with debugging turned on. The
Cisco NAC Web Agent generates the following log files for troubleshooting purposes: webagent.log and
webagentsetup.log. These files should be included in any TAC support case for the Web Agent.
Typically, these files are located in the user's temp directory, in the form:
C:\Document and Settings\<user>\Local Settings\Temp\webagent.log
C:\Document and Settings\<user>\Local Settings\Temp\webagentsetup.log
If these files are not visible, check the TEMP environment variable setting. From a command-prompt,
type “echo %TEMP%” or “cd %TEMP%”.
When the client uses Microsoft Internet Explorer, the Cisco NAC Web Agent is downloaded to the
C:\Documents and Settings\<user>\Local Settings\Temporary internet files directory.
Generate Mac OS X Agent Debug Log
For Mac OS X Agents, the Agent event.log file and preference.plist user preferences file are available
under <username> > Library > Application Support > Cisco Systems > CCAAgent.app. To change
or specify the LogLevel setting, however, you must access the global setting.plist file (which is different
from the user-level preference.plist file).
Because Cisco does not recommend allowing individual users to change the LogLevel value on the client
machine, you must be a superuser or root user to alter the global setting.plist system preferences file
and specify a different Agent LogLevel.
Note
For versions prior to 4.1.3.0, debug logging for the Mac OS X Agent is enabled under <local drive ID>
> Library > Application Support > Cisco Systems | CCAAgent.app > Show Package Contents >
setting.plist.
To view and/or change the Agent LogLevel:
Step 1
Open the navigator pane and navigate to <local drive ID> > Applications.
Step 2
Highlight and right-click the CCAAgent.app icon to bring up the selection menu.
Step 3
Choose Show Package Contents > Resources.
Step 4
Choose setting.plist.
Step 5
If you want to change the current LogLevel setting using Mac Property Editor (for Mac OS 10.4 and
later) or any standard text editor (for Mac OS X releases earlier than 10.4), find the current LogLevel
Key and replace the exiting value with one of the following:
•
Info—Include only informational messages in the event log
•
Warn—Include informational and warning messages in the event log
•
Error—Include informational, warning, and error messages in the event log
•
Debug—Include all Agent messages (including informational, warning, and error) in the event log
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Note
Note
The Info and Warn entry types only feature a few messages pertaining to very specific Agent
events. Therefore, you will probably only need either the Error or Debug Agent event log level
when troubleshooting Agent connection issues.
Because Apple, Inc. introduced a binary-format .plist implementation in Mac OS 10.4, the .plist file may
not be editable by using a common text editor such as vi. If the .plist file is not editable (displayed as
binary characters), you either need to use the Mac Property List Editor utility from the Mac OS X
CD-ROM or acquire another similar tool to edit the setting.plist file.
Property List Editor is an application included in the Apple Developer Tools for editing .plist files. You
can find it at <CD-ROM>/Developer/Applications/Utilities/Property List Editor.app.
If the setting.plist file is editable, you can use a standard text editor like vi to edit the LogLevel value
in the file.
You must be the root user to edit the file.
Creating CAM/CAS Support Logs
The Support Logs web console pages for the CAM and CAS allow administrators to combine a variety
of system logs (such as information on open files, open handles, and packages) into one tarball that can
be sent to TAC to be included in the support case. Refer to “Support Logs” sections of the Cisco NAC
Appliance - Clean Access Manager Configuration Guide, Release 4.8(3) or Cisco NAC Appliance Clean Access Server Configuration Guide, Release 4.8(3).
Recovering Root Password for CAM/CAS
Refer to the “Password Recovery” chapter of the Cisco NAC Appliance Hardware Installation Guide,
Release 4.8.
Troubleshooting SNMP Issues
To troubleshoot the common errors that occur in SNMP operations, refer to the “Troubleshooting
SNMP” section of Cisco NAC Appliance - Clean Access Manager Configuration Guide, Release 4.8(3).
Troubleshooting CAM/CAS Certificate Issues
Refer to the “Troubleshooting Certificate Issues” sections of the Cisco NAC Appliance - Clean Access
Manager Configuration Guide, Release 4.8(3) or Cisco NAC Appliance - Clean Access Server
Configuration Guide, Release 4.8(3).
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Troubleshooting Switch Support Issues
To troubleshoot switch issues, see Cisco NAC Appliance Switch and Wireless LAN Controller Support.
Other Troubleshooting Information
For general troubleshooting tips, see the following Technical Support webpage:
http://www.cisco.com/en/US/products/ps6128/tsd_products_support_series_home.html
Documentation Updates
Table 8
Updates to Release Notes for Cisco NAC Appliance, Release 4.8(3)
Date
Description
10/24/14
Added Patch with Fix for Bash Vulnerability, page 15
4/29/13
Added caveat CSCub23095 to Resolved Caveats - Release 4.8(3), page 55
3/28/13
Added Support for Internet Explorer 10 on Windows 7, page 17
1/18/12
Updated the document with the latest NAC Agent 4.8.3.9
Added caveat CSCto49390 to Resolved Caveats - Release 4.8(3), page 55
12/06/12
Updated Support for Windows 8, page 16
10/23/12
Added Support for Windows 8, page 16 and Support for Internet Explorer 10, page 16
09/24/12
Added Support for iOS 6, page 17
07/27/12
Added Support for Mac OS X 10.8, page 17
06/08/12
Updated the document with the latest NAC Agent 4.8.3.3
Added caveats CSCty39040 and CSCtz23958 to Resolved Caveats - Cisco NAC Agent
Vers 4.8.3.9/Mac OS X Vers 4.8.3.594, page 63
01/18/12
Release 4.8(3)
Related Documentation
For the latest updates to Cisco NAC Appliance documentation on Cisco.com see:
http://www.cisco.com/en/US/products/ps6128/tsd_products_support_series_home.html or simply
http://www.cisco.com/go/cca.
•
Cisco NAC Appliance Hardware Installation Guide, Release 4.8
•
Cisco NAC Appliance - Clean Access Manager Configuration Guide, Release 4.8(3)
•
Cisco NAC Appliance - Clean Access Server Configuration Guide, Release 4.8(3)
•
Getting Started with Cisco NAC Network Modules in Cisco Access Routers
•
Cisco NAC Appliance FIPS Card Field-Replaceable Unit Installation Guide
•
Support Information for Cisco NAC Appliance Agents, Release 4.5 and Later
•
Cisco NAC Appliance Switch and Wireless LAN Controller Support
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Obtaining Documentation and Submitting a Service Request
•
Cisco NAC Appliance Service Contract / Licensing Support
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a
service request, and gathering additional information, see What’s New in Cisco Product Documentation
at: http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html.
Subscribe to What’s New in Cisco Product Documentation, which lists all new and revised
Cisco technical documentation, as an RSS feed and deliver content directly to your desktop using a
reader application. The RSS feeds are a free service.
This document is to be used in conjunction with the documents listed in the “Related Documentation” section.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of
Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The
use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.
© 2012 Cisco Systems, Inc. All rights reserved.
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