Ssh connexion without typing password on Cisco routers

[romain.jouhannet]

Hi,

I'm looking for how to send a router command (like copy running working, or upgrade IOS) but without typing any login or password. The idea is to perform automaticaly by a shell script action like get the config file every week or upgrade an IOS every month automaticaly.

I guess I should use authentification keys. I tried by this way but without any success.

The version of my routers are 2600, 7200VXR and 3750.

Thank you for helping me if any ideas!

Regards,

Romain

[yjdabear · Accepted solution]

Your best bet for automation is a scripting language such as Expect (http://expect.nist.gov/), because SSH public key authentication is not supported in IOS:

http://www.cisco.com/en/US/docs/ios/sec_user_services/configuration/guide/sec_secure_shell_v2.html#wp1055232

[romain.jouhannet]

Hi yjdabear,

Thank you for your answer. I'll look for in this way and hope it's not so hard.

BR

Romain