MD5 Authentication for OSPF Virtual Links

Virtual Links are links through transit areas back to Area 0
Therefore once MD5 authentication has been configured on Area 0 the virtual links require setting up for MD5.

NB:Done under the "router ospf" instance

R1

router ospf 1
router-id 1.1.1.1
log-adjacency-changes
area 12 virtual-link 2.2.2.2 authentication
area 12 virtual-link 2.2.2.2 message-digest-key 1 md5 letme0


R2

area 12 virtual-link 1.1.1.1 authentication
area 12 virtual-link 1.1.1.1 message-digest-key 1 md5 letme0
area 23 virtual-link 3.3.3.3 authentication
area 23 virtual-link 3.3.3.3 message-digest-key 1 md5 letme0



R3

area 23 virtual-link 2.2.2.2 authentication
area 23 virtual-link 2.2.2.2 message-digest-key 1 md5 letme0