Specifications

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Cisco NAC Appliance - Clean Access Manager Configuration Guide
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Chapter 9 Configuring Cisco NAC Appliance for Agent Login and Client Posture Assessment
Post-Configuration and Agent Maintenance on the CAM
Agent Auto-Upgrade Compatibility
The newest version of the Agent installation files are automatically included with the CAM software for
each Cisco NAC Appliance software release. Every version of the Agent is compatible with the same
version of the server product. For example:
• 4.9.5.6 Cisco NAC Agent works with 4.9(5) CAS/CAM
By design, every new 4.9.5.x Agent is intended to have basic backward compatibility with any 4.8(x)
Clean Access Server. In addition, 4.9(5) Clean Access Servers are designed to be compatible with Agent
4.9.4.x and later. Basic compatibility means, the Agent is able to perform basic functions such as login,
logout, look for configured requirements, and report vulnerabilities.
For Clean Access Agent version compatibility details, see Support Information for Cisco NAC Appliance
Agents, Release 4.5 and Later.
Versioning
The Cisco NAC Agent uses 4-digit versioning:
• Cisco NAC Agent version 4.9.5.6 is bundled with Cisco NAC Appliance Release 4.9(5).
• Upgrades to the Agent (e.g. 4.9.5.x) typically correspond to AV/AS product support enhancements
and/or Agent compatibility (e.g. OS support).
New Agent versions bundled with a Cisco NAC Appliance release (e.g. Cisco NAC Agent version
4.9.0.33) incorporate and supersede previous versions of the Clean Access Agent (e.g. 4.8.x.y).
Cisco Updates
With auto-upgrade enabled and the Agent already installed on clients, the Agent automatically detects
when an Agent update is available, downloads the update from the CAS, and upgrades itself on the client
after user confirmation. Administrators can make Agent auto-upgrade mandatory or optional for users.
To prevent distribution of the Agent update to users altogether, you can check the Do not offer current
NAC Agent to users for upgrade option from the Agent Distribution page. This prevents the user
upgrade notification when a newer Agent update becomes available on the CAM.
Note For further details on version upgrade restrictions, refer to the “Agent Upgrade Compatibility Matrix”
of the corresponding Release Notes for Cisco NAC Appliance.