- Configure interfaces
- Configure OSPF
- Configure MD5 authentication
- Verfiy configuration
Configure MD5 authentication
I did this the wrong way round and configured R2 first instead of R1, so when i went to configure R2 i recived this message;
Which confused me unil i realised I configured R2 already instead of R1. This is why you will see the OSPF adjacency messages below in the wrong order.
I configured R2 which broke the adjacency, which was then reestablished once i configured R1to match the md5 key.
The MD5 key has been set to 'md5key'.
The adjacency messages above give a good indiction that the authenticaion has worked. However you can use the following commands to check.
R1To verify the configuration you can view the interface;
You can also use the 'show ip ospf neighbor' command, if the authentication were to fail the two routers will not form an adjacency.