Cisco 4402 WLC IOS Upgradation using CLI and Web Interface

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Jan 30th, 2009

Hi,

I would like to know how to upgrade IOS of Cisco 4402 WireLess LAN Controller using CLI and Web interface ?

Can any one help me regarding the same.

Please answer as soon as possible.

Thanks in advance.

I have this problem too.
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sschmidt Fri, 01/30/2009 - 06:31

Here are the instructions for upgrading the controllers via GUI:

http://www.cisco.com/en/US/docs/wireless/controller/release/notes/crn52.html#wp472449

Instructions via cli:

Cisco recommends that a direct CLI console port connection is used to update the controller software.

1. Make sure a TFTP server is available for the Operating System (OS) software download. Also, keep these guidelines in mind when the TFTP server is set up:

*

If a download is performed through the service port, the TFTP server must be on the same subnet as the service port because the service port is not routable.

*

If a download is performed through the Distribution System (DS) network port, the TFTP server can be on the same or a different subnet because the DS port is routable.

*

The TFTP server cannot run on the same computer as the Cisco Wireless Control System (WCS) because WCS and the TFTP server use the same communication port.

2. Download the desired OS software update file from the Cisco website to the default directory on the TFTP server.

3. Log into the WLC CLI.

4. Issue the ping server-ip-address command to verify that the WLC can contact the TFTP server.

5. Issue the transfer download start command and answer n when prompted to view the current download settings.

This example shows the command output:

transfer download start

Mode........................................... TFTP

Data Type...................................... Code

TFTP Server IP.................................

xxx.xxx.xxx.xxx

6. TFTP Path...................................... TFTP Filename.................................. AS_2000_3_0_x_x.aes --OR-- AS_4100_3_0_x_x.aes --OR-- AS_4400_3_0_x_x.aes Are you sure you want to start? (y/n) n Transfer Canceled Issue these commands to change the download settings:

* transfer download mode tftp

* transfer download datatype code

* transfer download serverip tftp-server-ip-address

* transfer download filename filename

* transfer download path absolute-tftp-server-path-to-file

Note: All TFTP servers require the full pathname. For example, in Windows, the path is C:\TFTP-Root. (In UNIX forward slashes (/) are required.)

7. Issue the transfer download start command to view the updated settings, and answer y when prompted to confirm the current download settings and start the OS code download.

This example shows the download command output:

transfer download start

Mode........................................... TFTP

Data Type...................................... Code

TFTP Server IP.................................

xxx.xxx.xxx.xxx

TFTP Path......................................

path>

TFTP Filename..................................

AS_2000_3_0_x_x.aes --OR--

AS_4100_3_0_x_x.aes --OR--

AS_4400_3_0_x_x.aes

Are you sure you want to start? (y/n) y

TFTP Code transfer starting.

TFTP receive complete... extracting components.

Writing new bootloader to flash.

Making backup copy of RTOS.

Writing new RTOS to flash.

Making backup copy of Code.

Writing new Code to flash.

TFTP File transfer operation completed successfully. Please

restart the switch (reset system) for update to complete.

8. The WLC now has the code update in active volatile RAM, but the reset system command must be issued to save the code update to non-volatile RAM (NVRAM) and reboot the WLC.

This is a sample output:

The system has unsaved changes.

Would you like to save them now? (y/n) y

The controller completes the bootup proce

Prashant Gondaliya Tue, 02/03/2009 - 03:17

Dear sschmidt,

Thanks for immediate reply. I hope this instructions will be useful for me.

I will update you after complete IOS upgradation activity.

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