In this article we will learn how to configure ospf routing protocol in a complex network.OSPF(Open Shortes Path First) Routing can be done on any router it is not a cisco proprietary.Since it is an open standard it will run on most of routers.OSPF uses SPF algorithm to provide a loop free topology.OSPF is also a classless protocol.OSPF is complex to configure and troubleshoot.Here we will learn ospf routing protocol configuration through an example lab.I am going to Create a topology.See below to design topology diagram in your cisco packet tracer.
OSPF routing Protocol configuration is slightly different from EIGRP and RIP.
Router(config)# router ospf process_ID
Router(config-router)# network IP_address wildcard_mask area area_value
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