To configure OSPF on your network devices, you need to take several steps. Firstly, you must define a router ID, which is a unique identifier for each OSPF router. You can use the highest IP address of the router's interfaces or assign a static IP address using the router-id command. Secondly, enable OSPF on the interfaces that should participate in the routing process. The network command specifies the interface IP address and wildcard mask, as well as the area number. Thirdly, adjust the link cost, which is the metric used by OSPF to determine the shortest path. The ip ospf cost command assigns a value between 1 and 65535 to each interface, or you can use the default value based on the interface bandwidth. Fourthly, configure the network type. The ip ospf network command selects one of four network types: broadcast, point-to-point, point-to-multipoint, or non-broadcast. Finally, verify your OSPF configuration using commands like show ip ospf , show ip ospf interface , show ip ospf neighbor , and show ip route ospf .