Seems like you have multiple issues.
Let us see if you can get you to be able to SSH first.
12.52.61.150 does not respond to icmp or may be the interface is not up.
1. If you do "sh int vlan2" does it show up up?
2. try to generate the key-pair "cry key generate rsa modulus 1024" and then try ssh to the outside ip 12.52.61.150 again.
-KS