Use this command to enable OSPFv2 and set the area ID of an interface or range of interfaces. The area-id is an IP address formatted as a 4-digit dotted-decimal number or a decimal value in the range of 0-4294967295. This command supersedes the effects of the network area command. It can also be used to configure the advertiseability of the secondary addresses on this interface into the OSPFv2 domain.
| Default | Disabled |
| Format | ip ospf area area-id [secondaries none] |
| Mode | Interface Config |