Assigning OSPFv2 areas

Areas can be assigned as OSPFv2 areas.

About this task

1. Enter the configure terminal command to access global configuration mode.
   

   device# configure terminal

2. Enter the router ospf command to enter OSPF router configuration mode and enable OSPFv2 on the device.
   

   device(config)# router ospf

3. Enter the area command to define an OSPFv2 area ID.
   

   device(config-router-ospf-vrf-default-vrf)# area 0

4. Enter the area command to define a second OSPFv2 area ID.
   

   device(config-router-ospf-vrf-default-vrf)# area 10.1.1.1

Example

The following example assigns an OSPFv2 ID to two areas. One of the areas is assigned by decimal number. The second area is assigned by IP address.

device# configure terminal
device(config)# router ospf 
device(config-router-ospf-vrf-default-vrf)# area 0
device(config-router-ospf-vrf-default-vrf)# area 10.1.1.1