hostname WB2
enable secret class
line vty 04 
password cicso
login
exit
line console 0
password cisco
login
exit
banner motd "Authorized access only!"
in fa0/0
ip ad 172.16.100.129 255.255.255.192

no shutdown
exit
in fa 0/1 
ip ad 172.16.100.225 255.255.255.240
no shutdown
ip ospf hello 20
ip ospf priority 50
exit
in s0/0/0
no shutdown
ip ad 172.16.100.242 255.255.255.252
ip ospf priority 50
exit
interface lo0
ip ad 10.0.0.2 255.255.255.255
exit
router ospf 1
passive fa0/1
network 10.0.0.2 0.0.0.0 area 0
network 172.16.100.128 0.0.0.63 area 0
network 172.16.100.224 0.0.0.15 area 0
network 172.16.100.240 0.0.0.3 area 0
exit
end
copy run start