Copied config to new router - ssh no longer works

[simonwynn]

Hi,

I recently upgraded our router. In the process I simply copied the config to the new router. Now ssh refuses connections.

Do I need to delete and regenerat the RSA keys on the router? I.e. I can't just copy them?

thanks,

Simon

[JohnTylerPearce]

Make sure you have 'ip domain-name' configured correctly, and re-create the SSH KEY

crypto key zeroize

crypto key generate rsa mod 2048