Switch0、Switchl、Switch2和Switch3均为二层交换机。总部拥有的IP地址块为202．114．12．0／24。Switch0的端口e0／24与路由器R2的端口eO／O相连，请根据图完成路由器R2及Switch0的配置。

R2(config)interface fastethernet 0／0．1

R2(config—subif)encapsulation dotl q(3)

R2(config—subif)ip address 202．1 14．12．1 255．255．255．192

R2 f config—subif)no shutdown

R2(config—subif)exit

R2(config)interface fastethemet 0／0．2

R2(config—subif)encapsulation dotlq(4)

R2(config—subif)ip address 202．1 14．12．65 255．255．255．192

R2(config—subif)no shutdown

R2(eonfig—subif)exit

R2(config)interface fastethernet 0／0．3

R2(config—subif)encapsulation dotl q(5)

R2(eonfig—subif)ip address 202．1 14．12．129 255．255．255．192

R2(eonfig—subif)no shutdown

R2(config—subif)exit

R2(eonfig)interface fastether0／0

R2(config—if)no shutdown

Switch0(~onfig)interface f0／24

Switch0(config—if)switchport mode(6)

Switch0(config—if)switchport trunk encapsulation(7)

Switch0(config—if)switehpoa trunk allowed all

Switch0(config—if)exit