The Journey of a Network Engineer

Aug 11 2012   4:34AM GMT

How to update FWSM to 4.1?

Sulaiman Syed Profile: Sulaiman Syed

Cisco FWSM’s image/ios version 4.1 was mainly intended to solve compatibility issues with the 6500 VSS. the update process is pretty simple and straight forward. download the ios into TFTP server, it is preferred that the ios image is in the root directory. type the following command

copy tftp://server[/path]/filename flash:[image]
So, assuming server ip is 10.1.1.1 and directory is root. file name is fwsm-ios-4.1 the command would be 
copy tftp://10.1.1.1/fwsm-ios-4.1.bin flash:image
is this the only way to write that command? simple answer is no. But this is the most effective and working way. 
We had to FWSM, one was upgraded the convintional way:
copy tftp flash
Address or name of remote host []? 10.1.1.1
Source filename []? fwsm-ios-4.1.bin
Destination filename [test]?image

to our surprise, it worked only in one FWSM. the second FWSM, will not take the image. it had errors copying, saving, and things just didn’t work. lastly, we followed the one line syntax. and it worked!!

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