A、ping B、ip config C、show interface D、reload
A、A.config system ip 10.69.18.5/24 B、B.config system ip 10.69.18.5 netmask 255.255.255.0 C、C.config modify system ip 10.69.18.5/24 D、D.config modify system ip 10.69.18.5 netmask 255.255.255.0
A、A.Switch(config)#ip address 192.168.1.1 B、B.Switch(config-if)#ip address 192.168.1.1 C、C.Switch(config-if)#ip address 192.168.1.1 255.255.255.0 D、D.Switch(config-if)#ip address 192.168.1.1 netmask 255.255.255.0