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In this section, you will learn how to
configure OSPF on routers within a certain area.
To configure OSPF, you must enable OSPF on the router and configure
the router's network addresses and area information (see Figure ).
To configure OSPF, perform the following steps:
- Enable OSPF on the router using the following configuration:
router(config)#router ospf process-id
process-id is a user defined number to identify multiple
OSPF processes running within a single router. The process-id does
not need to match process-ids on other routers. Running multiple
OSPF processes on the same router is not recommended because it
creates multiple database entries that take up unnecessary memory
in your router.
- Identify IP networks on the router.
For each network, you must identify the area to which the network
belongs. The network value can vary in that it can be the network
address supported by the router, or the specific interface addresses
configured. The router knows how to interpret the address by
comparing the address to the wildcard mask. Use the following
configuration:
router(config-router)#network address wildcard-mask
area area-id

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