Cisco Cisco NAC Appliance 4.8.0 Installation Guide
6
Getting Started with Cisco NAC Network Modules in Cisco Access Routers
OL-2609-01
Cisco NAC Network Module and Clean Access Server Software
To resolve this, check the system clock after upgrading, set it once and reboot. To set the date again
use the following command and reboot.
use the following command and reboot.
Syntax:
date -s "dd MMM YYYY hh:mm:ss"
Example:
date -s "15 APR 2010 19:49:00"
You can also synchronize the time using the CAS web console. In the CAS web console, perform
the following steps:
the following steps:
Step 1
Navigate to Administration > Time Server.
Step 2
Select the Time Zone and enter the appropriate time server in the Time Servers field.
Step 3
Click Synchronize Time.
Step 4
Reboot the system.
•
The Cisco NAC Appliance architecture is not designed for heterogeneous support—that is, some
Clean Access Servers running 4.1(3) software and some running 4.1(2) software. Because the NAC
network module is only supported starting from release 4.1(2) and later, to introduce a NAC network
module to an existing NAC Appliance deployment (e.g. running 4.1.1), you must upgrade your
Clean Access Manager and all your Clean Access Servers concurrently to release 4.1.2.1 or later.
Clean Access Servers running 4.1(3) software and some running 4.1(2) software. Because the NAC
network module is only supported starting from release 4.1(2) and later, to introduce a NAC network
module to an existing NAC Appliance deployment (e.g. running 4.1.1), you must upgrade your
Clean Access Manager and all your Clean Access Servers concurrently to release 4.1.2.1 or later.
Note
Refer to
for the latest compatibility details.
Note
Release 4.1.2.1 is the minimum mandatory version for all appliances, and is required to support
HA-CAS pairs. For compatibility with CAM/CAS appliances running 4.1.2.1, you must use the
standard product upgrade file to upgrade the Cisco NAC network module to 4.1.2.1. See
HA-CAS pairs. For compatibility with CAM/CAS appliances running 4.1.2.1, you must use the
standard product upgrade file to upgrade the Cisco NAC network module to 4.1.2.1. See
for additional information.
Note
Cisco NAC Appliance Release 4.8 supports fresh installation of Release 4.8 or upgrade from
Release 4.6(1) to Release 4.8 only.
Release 4.6(1) to Release 4.8 only.
Note
Cisco NAC Appliance Release 4.9(x) supports fresh installation of Release 4.9(x) or upgrade
from Release 4.8(x) to Release 4.9(x) only.
from Release 4.8(x) to Release 4.9(x) only.
Cisco NAC Network Module and Clean Access Server Software
The Clean Access Server is a Linux-based application that resides on the NAC network module that
plugs into a host Cisco router running Cisco IOS software.
plugs into a host Cisco router running Cisco IOS software.