Cisco Cisco NAC Appliance 4.8.0 Installation Guide

Getting Started with Cisco NAC Network Modules in Cisco Access Routers

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Prerequisites for Cisco NAC Network Module

Router

•

Plan software upgrades or downgrades for times when you can take all applications that run on the
host router out of service or offline.

•

Ensure that you have the appropriate Cisco access router to serve as the host router. The Cisco NAC
Network Module is supported on the following Cisco access routers:

–

Cisco 2811

–

Cisco 2821

–

Cisco 2851

–

Cisco 3825

–

Cisco 3845

•

In addition to the above routers, Cisco NAC Appliance Releases 4.8 and later support the following
Cisco access routers.

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Cisco 2911

–

Cisco 2921

–

Cisco 2951

–

Cisco 3925

–

Cisco 3945

Note

The NAC network module is pre-installed with Cisco NAC Appliance software release 4.1(2) (or
later), with the Clean Access Server software running as the application code. Ensure that you
are upgrading it to Cisco NAC Appliance Releases 4.8 or later to support the above Cisco access
routers.

•

Ensure that the host router is running Cisco IOS Release 12.4(11)T or a later release. To learn which
release your router is currently running, examine output from the show version command.

Note

When minimum release requirements are met, you can change images on either the router or the
network modules without affecting performance.