Open Shortest Path First (OSPF)

How to set the protocol, Open Shortest Path First (OSPF)

Step 1: Enter privileged EXEC mode:
            Router>enable password
Step 2: Enter the configure terminal command to enter global configuration mode.
            Router#config terminal
Step 3: Enter the router ospf command and follow by the process-id.
            Router(config)#router ospf process-id

Pick the process-id which is not being used. To determine what ids are being used, issue the show process command.
            Router(config)#show process

Step 4: Add the network number, mask and area-id
            Router(config-router)#network network-number mask area area-id

The network-number identifies the network using OSPF. The mask tells which bits to use from the network-number, and the area-id is used for determining areas in an OSPF configuration.

            Example:
            Router(config-router)#network 192.168.10.0 255.255.255.0 area 0.0.0.0