单项选择题
A.show ip ospf neighbor detail B.show ip ospf database C.debug ip ospf packet D.log-adjacency-changes
A.R1(config-if) ip route 0.0.0.0 255.255.255.255 192.168.3.1 B.R1(config-if) ip route 0.0.0.0 0.0.0.0 192.168.3.1 C.R1(config) ip route 0.0.0.0 0.0.0.0 192.168.2.2 D.R1(config) ip route 0.0.0.0 255.255.255.255 192.168.2.2