How to find out checksum on a ios image on a 3750 ?

Unanswered Question
Oct 24th, 2008

Does anyone know how to find out the checksum on a downloaded ios image on a 3750 switch ?

ie I used tftp to download a new ios image and now I want to check the checksum on the file located on the flash.

I have this problem too.
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Collin Clark Fri, 10/24/2008 - 05:22

7206VXR#verify disk2:/c7200p-advsecurityk9-mz.124-15.T5.bin

Verifying file integrity of disk2:/c7200p-advsecurityk9-mz.124-15.T5.bin

.............................................

.............................................

.............................................

.............................................

.............................................

........................................Done!

Embedded Hash MD5 : 8DF4B6E5EAC416467CFDB5E25699BBF5

Computed Hash MD5 : 8DF4B6E5EAC416467CFDB5E25699BBF5

CCO Hash MD5 : 00215BB6C762990B22533ED8652F6754

Embedded hash verification successful.

Hope that helps

hobbe Fri, 10/24/2008 - 05:47

The command is possible to write this way in the 3750, however if i do that on the current version (12.2.46-se) it can not find the file specified, however if i add /md5 in the correct place then it works like a charm. seems to me there is a bug in the verify command on this version for the 3750.

Thank you very much for your input. it was most helpful.

Collin Clark Fri, 10/24/2008 - 05:49

IOS across routers/switches/firewall/ACEs/etc can differ slightly in their commands. Edison was spot on with the /md5.

hobbe Fri, 10/24/2008 - 05:55

Yes he was but you where close enough :-)

Thank you all.

hobbe Fri, 10/24/2008 - 05:50

Works like a charm.

it was in the switch, I needed to check it out after a series of 0 in the tftp transfer.

Thank you very much for your swift inpuut.

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