1 拓扑图 2 配置 R1 R1#show running-config | section int interface FastEthernet0/0 ip address 192.168.1.1 255.255.255.0 duplex auto speed auto interface FastEthernet1/0 ip address 10.1.13.1 255.255.255.0 duplex auto speed auto interface FastEthernet2/0 no i…