R1(config)# router ospf 10 R1(config-router)# network 172.16.0.0 0.0.0.255 area 0 R1(config-router)# network 192.168.1.0 0.0.0.255 area 0 R1(config-router)#passive-interface GigabitEthernet 1/0.100 R1(config-router)#passive-interface GigabitEthernet 1/0.300