Cisco Systems OL-7426-03 User Manual

Converting a Cisco WLAN Solution 

from Layer 3 to Layer 2 Mode 

When you wish to convert Cisco WLAN Solution from Layer 3 to Layer 2 Mode, perform one of the 
following tasks:

•

 

•

Using the Web User Interface

When you wish to convert a Cisco WLAN Solution from Layer 3 to Layer 2 LWAPP Transport Mode using 
the Web User Interface, complete the following steps:

1.

MAKE SURE that all the Cisco Wireless LAN Controllers and Cisco 1000 Series lightweight access 
points are on the same subnet: that they are only connected through Layer 2 devices.

2.

In the Web User Interface, select CONTROLLER/General to navigate to the General page, 
and change Layer 3 LWAPP Transport Mode to Layer 2. Then click Apply to send the changes 
to the Cisco Wireless LAN Controller. Click OK to continue.

3.

Select COMMANDS/Reboot to navigate to the System Reboot page, and select Reboot. On 
the Reboot System > Save page, click Save and Reboot to save the changes to and to 
reboot the Cisco Wireless LAN Controller. Then click OK to confirm the save and reboot.

4.

After the Cisco Wireless LAN Controller has rebooted, select CONTROLLER/General to 
navigate to the General page, and verify that the current LWAPP Transport Mode is set to 
Layer 2.

5.

Also select CONTROLLER/Interfaces to navigate to the Interfaces page, and verify that the 
ap-manager interface is removed from the list of Interface Names.

You have completed the LWAPP Transport Mode conversion from Layer 3 to Layer 2. The Operating 
System software now controls all communications between Cisco Wireless LAN Controllers and Cisco 
1000 Series lightweight access points on the same subnet. Continue with the 

 This procedure will cause your Cisco 1000 Series lightweight access 

points to go offline until the Cisco Wireless LAN Controller reboots and the associated 
Cisco 1000 Series lightweight access points reassociate with the Cisco Wireless LAN 
Controller.

 This step is very important! If you change the Cisco WLAN Solution From 

Layer 3 to Layer 2 while the Cisco Wireless LAN Controllers and Cisco 1000 Series 
lightweight access points are on different subnets, they will be UNABLE TO COMMU-
NICATE with each other after the conversion to Layer 2 mode.