Cisco Access Point Cap to Sap / Sap to Cap conversion

CONVERTING CISCO CAP TO SAP / SAP TO CAP
(lwap - Ap / Ap - Lwap):

You can watch the video too...!!!

Conversion of the AP's using downgrade or upgrade takes a lot of time and most of the times the IOS loaded will lead to an error, So Instead of that process i am going to use ROMMON recovery, It's a simple procedure for IOS changing. It will help a Network engineer's work a lot easier.

ROMMON recovery is a process of Deleting the existing flash, and re-inserting our desired IOS. Follow the below  procedure.

Mandatory Pre requirements:

A PC with TFTP server installed. (Turn off Antivirus, Firewall in PC)

Cisco AP which is to be converted.

Console cable 

Procedure:

1) Login to the CLI go to "privilege mode" . (Enable mode)

2) Execute the below command:

     show flash:

Output for the above command will be like this

In the above output following are the firmware images:

ap3g2-k9w8-tar.153-3.JBB5.tar

ap3g2-k9w8-mx.152-2.JB2 

We need to delete them using the below command:

2)# delete /force /recursive flash:/<name of the IOS image>

3)now we need to reboot the AP to get into ROMMON mode:

   issue the command reload

4)Now we will be entered in to Rommon mode.

ether_init

flash_init

tftp_init

set IP_ADDR 192.168.1.10

set NETMASK 255.255.255.0

set DEFAULT_ROUTER 192.168.1.1

[you can give network details as per your desire]

AP configuration was done, now we need to configure the PC

Give the IP address of the PC as 192.168.1.1 (in my case, as i have given the default router of AP this one)

subnet mask same as above.

open the tftp server and start it. [ i have used solarwinds tftp server, tftpd will give some error sometimes so i prefer using it]

Keep the firmware image in the TFTP Root folder and disable all antivirus and firewalls in the PC.

in the AP Console issue the below command:

tar -xtract tftp://192.168.1.1/<file name>.tar flash:

then you will see the data transfer, Wait for it to complete.

Once the data transfer is finished, Issue the below commands.

set BOOT flash:/<name of the file>.tar

you can verify the settings by issuing the "set" command.

Now issue the command boot to reboot the AP with the new firmware image.

Share if it helped you. :)