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Community Member

Cisco SSH on Catalyst 4506

I am running the below version...yes I do know that it is out of date...

Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-IPBASE-M), Version 12.2(31)SGA9, RELEASE SOFTWARE (fc1)

...but I am currently in the process of updating to cat4500-ipbasek9-mz.122-54.SG1, in order to enable SSH on my devices.  I have successfully updated numerous devices, and I just happened to generate the crypto key and then did a vital mistake was that I did not configure any username accounts and I can't seem to find a back door looking through online forums.  This may be an easy fix, but I am more used to different platforms and relatively new to Cisco. Budgeting restricts our ability to upgrade the hardware, so that is out of the question. Please help...

Jeff Allard

VIP Super Bronze

Try using a console cable and

Try using a console cable and login to console port. Once logged in create a username and password.


Community Member

I have tried that...I have

I have tried that...I have already enabled the ssh on all line vty 0 15 and con 0...

as soon as I plug in and establish a serial connection, it asks for a way around it as I can see...(not that I don't have 6 projects going at once).  But I am sure there has to a way...possibly through rommon?

VIP Super Bronze

In that case see this link

In that case see this link and follow it to do a password recovery to recover your access.


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