R1(config)# ip domain-name cisco.com
Once we have set the domain name we need to generate security keys for SSH.
R1(config)# crypto key generate rsa
we now need to select the key size. we need a minimum of 768 bits for SSH ver 2. We then need to set the version to version 2.
Once this is done we need to create a username and password for us to be able to SSH to our router. This is done like below.
R1(config)# username user password cisco
We now need to go under the vty lines and use the command “login local” to get the router to accept logins from the local user database.
R1(config)# line vty 0 4 R1(config-line)# login local
Now to test our config. On R2 we use the following command to SSH to R1 where -v is version and -l is login
R2# ssh -v 2 -l user 192.168.1.1
We have now connected to R1 using SSHv2