Release Notes

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

OL-31336-01

Installation Notes

Step 5 From the File Type drop-down box, choose Code.

Step 6 In the IP Address field, enter the IP address of the TFTP server.

Step 7 The default values of 10 retries and 6 seconds for the Maximum Retries and Timeout fields should work

fine without any adjustment. However, you can change these values if desired. To do so, enter the

maximum number of times that the TFTP server attempts to download the software in the Maximum

Retries field and the amount of time (in seconds) that the TFTP server attempts to download the software

in the Timeout field.

Step 8 In the File Path field, enter the directory path of the software.

Step 9 In the File Name field, enter the name of the software file (filename.aes).

Step 10 Click Download to download the software to the controller. A message appears indicating the status of

the download.

Step 11 Repeat Step 4 to Step 10 to install the remaining file (either the 4.2.176.0 controller software or the

Cisco Unified Wireless Network Controller Boot Software 4.2.112.0 ER.aes file).

Step 12 After the download is complete, click Reboot.

Step 13 If prompted to save your changes, click Save and Reboot.

Step 14 Click OK to confirm your decision to reboot the controller.

Step 15 If desired, reload your latest configuration file to the controller.

Step 16 To verify that the 4.2.176.0 controller software is installed on your controller, click Monitor on the

controller GUI and look at the Software Version field under Controller Summary.

Step 17 To verify that the Cisco Unified Wireless Network Controller Boot Software 4.2.112.0 ER.aes file is

installed on your controller, enter the show sysinfo command on the controller CLI and look at the

Bootloader Version field. “N/A” appears if the ER.aes file is installed successfully. “Error” appears if

the ER.aes file is not installed.

Note You can use this command to verify the boot software version on all controllers except the 2106

because the bootloader is not upgradable on the 2106 controller.

Installation Notes

This section contains important information to keep in mind when installing controllers and access

points.

Warnings

Warning

This warning means danger. You are in a situation that could cause bodily injury. Before you work on

any equipment, be aware of the hazards involved with electrical circuitry and be familiar with

standard practices for preventing accidents.