Router1(config-router)# area 1 stub Router3(config)# router ospf 1Īfter this configuration, the show ip route output will be like below:Ĭodes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGPĭ - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area The stub area configuration will be like below on both Router1 and Router3: On our main topology, we will configure the Area 1 as stub. To form a new neigbourship, the other end router need to be configured as Stub. Because, configuring a router interface as a Stub, changes the option bits in the Hello Packets. To configure an area as a Stub Area, we need to configure all the routers in this area as Stub.
Stub Areas accept the summary LSAs Type 3 beside the Default Route from the Backbone Area. Stub Area is the area that do not accept the External LSAs(Type 5).
