004 ospf

r0(config)#router ospf 1

OSPF process 1 cannot start. There must be at least one "up" IP interface

r0(config-router)#network 10.0.0.1 0.0.0.0 area 0

r0(config-router)#network 202.10.20.0 0.0.0.255 area 0

r0(config-router)#

来自为知笔记(Wiz)