## 交换机
Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int f0/2
Switch(config-if)#sw
Switch(config-if)#switchport acc vlan 10
% Access VLAN does not exist. Creating vlan 10
Switch(config-if)#ex
Switch(config)#int f0/3
Switch(config-if)#sw acc vlan 20
% Access VLAN does not exist. Creating vlan 20
Switch(config-if)#
Switch(config-if)#ex
Switch(config)#int f0/1
Switch(config-if)#sw mo tr
Router>
Router>en
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#route rip
Router(config-router)#version 2
Router(config-router)#network 20.20.20.0
Router(config-router)#network 30.30.30.0
R4
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#route rip
Router(config-router)#version 2
Router(config-router)#
Router(config-router)#network 30.30.30.0
Router(config-router)#net
Router(config-router)#network 192.168.20.0
Router(config-router)#net
Router(config-router)#network 122.122.122.0