packet tracer 2.7.1 Full Config P2P-1 Router
enable
configure terminal
interface Serial0/1/1
ip ospf cost 50
interface Serial0/2/0
ip ospf hello-interval 20
ip ospf dead-interval 80
router ospf 10
auto-cost reference-bandwidth 1000
network 10.0.0.0 0.0.0.3 area 0
network 10.0.0.8 0.0.0.3 area 0
network 10.0.0.12 0.0.0.3 area 0
end