Chapter 4 Configuring Controller Settings
Using the Wireless LAN Controller Network Module
Using the Wireless LAN Controller Network Module
Keep these guidelines in mind when using a wireless LAN controller network module (CNM) installed in a Cisco Integrated Services Router:
•The controller network module does not support IPSec. To use IPSec with the CNM, configure IPSec on the router in which the CNM is installed. Click this link to browse to IPSec configuration instructions for routers:
http://www.cisco.com/en/US/tech/tk583/tk372/tech_configuration_guides_list.html
•The controller network module does not have a battery and cannot save a time setting. It must receive a time setting from an NTP server when it powers up. When you install the module the configuration wizard prompts you for NTP server information.
•To access the CNM bootloader, Cisco recommends that you reset the CNM from the router. If you reset the CNM from a CNM user interface the router might reset the CNM while you are using the bootloader.
When you reset the CNM from a CNM interface you have 17 minutes to use the bootloader before the router automatically resets the CNM. The CNM bootloader does not run the Router Blade Configuration Protocol (RBCP), so the RBCP heartbeat running on the router times out after 17 minutes, triggering a reset of the CNM.
If you reset the CNM from the router, the router stops the RBCP heartbeat exchange and does not restart it until the CNM boots up. To reset the CNM from the router, enter this command on the router CLI:
service-module wlan-controller 1/0 reset
Cisco Wireless LAN Controller Configuration Guide
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