I am trying to implement OSPF authentication using MD5 between (2) Layer 3 switches. The switches are connected via Port Channel 1 using PagP. When I go into config if Int PO1, there isn't any command syntax related to ip ospf etc etc. I am not sure where or how to enter the message digest key on the interface. Even by configuring or turning on the authentication for the entire area under the router ospf 1 command, i still need to put the key string somewhere.
Using IOS 15.2
