in fa0/1
ip ad 172.16.100.238 255.255.255.240
no shutdown
ip ospf hello 20
ip ospf priority 100
exit
in s0/0/0
ip ospf priority 100
exit
router ospf 1
network 10.0.0.1 0.0.0.0 area 0
network 172.16.100.0 0.0.0.127 area 0
network 172.16.100.224 0.0.0.15 area 0
network 172.16.100.244 0.0.0.3 area 0
passiv fa0/0
exit
end
copy run start