Release Notes

Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 4.2.176.0

OL-31336-01

Important Notes

4400 Series Controllers Do Not Forward Subnet Broadcasts through Guest

Tunnel

As designed, 4400 series controllers do not forward IP subnet broadcasts from the wired network to wireless

clients across the EoIP guest tunnel.

Connecting 1100 and 1300 Series Access Points

You must install software release 4.0.179.8 or later on the controller before connecting 1100 and 1300

series access points to the controller.

Preventing Clients from Accessing the Management Network on a Controller

To prevent or block a wired or wireless client from accessing the management network on a controller

(from the wireless client dynamic interface or VLAN), the network administrator should ensure that

there is no route through which to reach the controller from the dynamic interface or use a firewall

between the client dynamic interface and the management network.

Voice Wireless LAN Configuration

Cisco recommends that aggressive load balancing always be turned off either through the controller GUI

or CLI in any wireless network that is supporting voice, regardless of vendor. When aggressive load

balancing is turned on, voice clients can hear an audible artifact when roaming, and the handset is

refused at its first reassociation attempt.

Changing the IOS LWAPP Access Point Password

Cisco IOS Lightweight Access Point Protocol (LWAPP) access points have a default password of Cisco,

and the pre-stage configuration for LWAPP access points is disabled by default. To enable it, you must

configure the access point with a new username and password when it joins the controller. Enter this

command using the controller CLI to push a new username and password to the access point:

config ap username user_id password password {Cisco_AP | all}

• The Cisco_AP parameter configures the username and password on the specified access point.

• The all parameter configures the username and password on all the access points registered to the

controller.

The password pushed from the controller is configured as “enable password” on the access point.

There are some cases where the pre-stage configuration for LWAPP access points is disabled and the access

point displays the following error message when the CLI commands are applied:

“ERROR!!! Command is disabled.”

For more information, refer to Upgrading Autonomous Cisco Aironet Access Points to Lightweight Mode.