Router>enable 进入特权模式
配置FastEthernet0/0接口信息
Router#configure terminal 进入全局设置状态
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Router(config)#interface FastEthernet0/0 进入FastEthernet0/0接口
Router(config-if)#ip address 192.168.3.1 255.255.255.0 配置IP
Router(config-if)#no shutdown 启用端口
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
Router(config-if)#exit 退出FastEthernet0/0接口