### Router0
Router(config)#router ospf 100
Router(config-router)#net 172.1.1.0 0.0.0.255 area 0
Router(config-router)#net 192.168.1.0 0.0.0.255 area 0
Router(config-router)#end
Router#
%SYS-5-CONFIG_I: Configured from console by console

Router#