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Cisco 2800 Router Certificate Key for SSH

I am operating a 2800 series Cisco router.  The router is working fine  except that I am not able to SSH into the router.  I have checked the  running config with cisco's documentation and every line is correct.    Prior to me getting this job they did an update and think they have  corrupted the a certificate key for SSH.

I wanted to see if anyone knew the commend to generate just the SSH key  and not all the other keys that would cause bigger connection issues.

I am using Putty with no problems access my other routers. 

Thanks for the help.

1 Reply 1

Richard Burts
Hall of Fame
Hall of Fame

Michael

Probably the first step is to find out if there are other keys configured. You can find this with show crypto key mypubkey rsa. Perhaps you can post the output of this command?

Then to generate the key that you need you would enter a command like crypto key generate rsa general-keys. The command also has optional parameters to specify modulus if you want to specify that and a parameter to supply a label for the key if you find that the existing key had a label.

HTH

Rick

HTH

Rick