IOS Release 15.0.2-SE4 caveat related to aaa

[John Katsoulas]

Hello everybody,

I was faced with the following situation:

I downgraded IOS from the release referred to in the title to the as of today Cisco recommended Version (12.2.55-SE10)

The Switches are C2960G-24TC-L and the method I used was via CNA ver 6.1 (Cisco Network Assistant)

After a succesful update (according to CNA) I was no longer able to access any of the Switches via SSH.

Is this problem known to anyone?

Is there any Workaround known to anyone?

[rakeshvelagala]

Have you tried telnet? Is it enabled in line vty?

Sometimes, just need to regenerate the RSA keys.

Thanks

[John Katsoulas]

I have tried Telnet and whereas I am getting the login screen and the banner, the switch does not accept the credentials. I could reset the keys if i had access to the switch. I also did not get access via the console as the authentication is affected through aaa.

[rakeshvelagala]

Strange. Can you paste the config before the upgrade if you have?

You can remove the sensitive info.