SEFOS# configure terminal SEFOS(config)# router ospf SEFOS(config-router)# router-id 10.10.2.1
VLAN Interfaces VLAN 1 and VLAN 10 are created as part of the prerequisite configuration.
SEFOS(config-router)# network 10.4.0.1 area 0.0.0.0 SEFOS(config-router)# network 10.10.2.1 area 0.0.0.6
Enabling OSPF over the VLAN interfaces defines the interfaces on which OSPF runs and the area ID for those interfaces.
SEFOS# show ip ospf OSPF Router ID 10.10.2.1 Supports only single TOS(TOS0) route ABR Type supported is Standard ABR It is an Area Border Router Number of Areas in this router is 2 Area is 0.0.0.6 Number of interfaces in this area is 1 SPF algorithm executed 6 times Area is 0.0.0.0 Number of interfaces in this area is 1 SPF algorithm executed 6 times
SEFOS# show ip ospf interface vlan1 is line protocol is up Internet Address 10.4.0.1, Mask 255.255.0.0, Area 0.0.0.0 AS 1, Router ID 10.10.2.1, Network Type BROADCAST, Cost 1 Transmit Delay is 1 sec, State 4, Priority 1 Designated RouterId 10.10.2.1, Interface address 10.4.0.1 Backup Designated RouterId 10.4.0.4, Interface address 10.4.0.4 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 Hello due in 8 sec Neighbor Count is 3, Adjacent neighbor count is 3 Adjacent with the neighbor 10.4.0.4 Adjacent with the neighbor 10.4.0.3 Adjacent with the neighbor 10.4.0.2 vlan10 line protocol is up Internet Address 10.10.2.1, Mask 255.255.255.0, Area 0.0.0.6 AS 1, Router ID 10.10.2.1, Network Type BROADCAST, Cost 1 Transmit Delay is 1 sec, State 4, Priority 1 Designated RouterId 10.10.2.1, Interface address 10.10.2.1 Backup Designated RouterId 10.10.1.8, Interface address 10.10.2.8 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 Hello due in 6 sec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with the neighbor 10.10.1.8 OSPF Router ID 10.10.2.1
SEFOS(config-router)# no network 10.4.0.1 area 0.0.0.0