Configuring OSPF for a Totally Stubby Area

Configuring OSPF for a Totally Stubby Area
Notice that we have to change, from the previous example, only the configuration of RouterB.
We simply add the no-summary argument to the area area-id stub command:
RouterB(config)#router ospf 10
where 10 is the Process ID.
RouterB(config-router)#network 1.0.0.0 0.255.255.255 area 0
where 1.0.0.0 0.255.255.255 is the network and wildcard mask of a network connected to
RouterB and where 0 is the area that network 1.1.1.0/24 is a member of.
RouterB(config-router)#network 10.0.0.0 0.255.255.255 area 25
where 10.0.0.0 0.255.255.255 is a summary network and wildcard mask of networks connected
to RouterB and where 25 is the area that networks 10.1.1.0/24 and 10.1.2.0/24 are members of.
RouterB(config-router)#area 25 stub no-summary
where the no-summary argument makes Area 25 totally stubby.