packet tracer 2.7.1 Full Config P2P-3 Router
enable
configure terminal
!
router ospf 10
log-adjacency-changes
passive-interface GigabitEthernet0/0/0
auto-cost reference-bandwidth 1000
network 10.0.0.4 0.0.0.3 area 0
network 10.0.0.8 0.0.0.3 area 0
network 192.168.3.0 0.0.0.15 area 0
end