OSPF (Open Shortest Path First)

ospf

 

  • Router# conf terminal
  • Router(config)# int e0
  • Router(config_if)# ip add 192.168.10.10 255.255.255.0
  • Router(config_if)# no shut
  • Router(config_if)# exit
  • Router(config)# int s0
  • Router(config_if)# ip add 1.1.1.1 255.255.255.0
  • Router(config_if)# no shut
  • Router(config_if)# clock rate 6400
  • Router(config_if)# router ospf 10 (10 represent the autonomous no which it prevent traffic from broad casting with each other)
  • Router(config_router)# network 192.168.10.0 0.0.0.255 area 0
  • Router(config_router)# network 1.0.0.0 0.0.0.255 area 0
  • Router(config_router)# exit

Now do the configuration on router 2 as

  • Router> enable
  • Router# conf terminal
  • Router(config)#int e0
  • Router(config_if)# ip add 192.168.20.10 255.255.255.0
  • Router(config_if)# no shut
  • Router(config_if)# exit
  • Router(config)# int s0
  • Router(config_if)# ip add 1.1.1.2 255.255.255.0
  • Router(config_if)# no shut
  • Router(config_if)# clock rate 64000
  • Router(config_if)# exit
  • Router(config)# router ospf 10
  • Router(config_router)# network 192.168.20.0 0.0.0.255 area 0
  • Router(config_router)# network 1.0.0.0 0.0.0.255 area 0
  • Router(config_router)# exit
  • Router(config)# exit
  • Router# exit

For Multiple Area

  • Router(config)# router ospf 10
  • Router(config_router)# network 192.168.20.0 0.0.0.255 area 0
  • Router(config_router)# network 1.0.0.0 0.0.0.255 area 0
  • Router(config-router)# network 192.168.10.0 0.0.0.255 area 1
  • Router(config_router)# exit
  • Router(config)# exit
  • Router# exit

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