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1、三层交换机与路由器的配置 实例（图解）目的：学会使用三层交换与路由器让处于不同网段的网络相互通信实验步骤：一：二层交换机的配置：在三个二层交换机上分别划出两VLAN，并将二层交换机上与三层交换或路由器上的接线设置为trunk接口二：三层交换机的配置：1：首先在三层交换上划出两个VLAN，并进入VLAN为其配置IP，此IP将作为与他相连PC的网关。2：将与二层交换机相连的线同样设置为trunk接线，并将三层交换与路由器连接的线设置为路由接口（no switchsport）3：将路由器和下面的交换机进行单臂路由的配置实验最终结果：拓扑图下各个PC均能相互通信1 / 6交换机的配置命令：SW 0:S
2、witchSwitchenSwitch#confConfiguring from terminal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z.Switch(config)#vlan 2Switch(config-vlan)#exitSwitch(config)#int f0/2Switch(config-if)#switchport access vlan 2Switch(config-if)#no shutSwitch(config-if)#int f0/
3、3Switch(config-if)#switchport mode trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to upSwitch(config-if)#exitSwitch(config)#SW 1:Switchen Switch#confConfiguring from terminal,
4、memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z.Switch(config)#int f0/2Switch(config-if)#switchport access vlan 2% Access VLAN does not exist. Creating vlan 2Switch(config-if)#no shutSwitch(config-if)#exitSwitch(config)#int f0/3Switch(config-if)#switchport mo
5、de trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to upSwitch(config-if)#SW 2:SwitchenSwitch#confConfiguring from terminal, memory, or network terminal? Enter configuration com
6、mands, one per line. End with CNTL/Z.Switch(config)#int f0/2Switch(config-if)#switchport access vlan 2% Access VLAN does not exist. Creating vlan 2Switch(config-if)#exitSwitch(config)#int f0/3Switch(config-if)#switchport mode trunk Switch(config-if)#三层交换的配置命令：SwitchenSwitch#confConfiguring from term
7、inal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z.Switch(config)#int f0/1Switch(config-if)#switchport mode trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to downSwitch(config-if)#exitSwitch(config)#int f0/2Switch(conf
8、ig-if)#switchport mode trunk Switch(config-if)#exitSwitch(config)#vlan 2Switch(config-vlan)#exitSwitch(config)#int vlan 1Switch(config-if)#no shut%LINK-5-CHANGED: Interface Vlan1, changed state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to upSwitch(config-if)#ip addres
9、s 192.168.1.168 255.255.255.0Switch(config-if)#exitSwitch(config)#int vlan 2%LINK-5-CHANGED: Interface Vlan2, changed state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan2, changed state to upSwitch(config-if)#ip addSwitch(config-if)#ip address 192.168.2.168 255.255.255.0Switch(config-if)
10、#%LINK-5-CHANGED: Interface FastEthernet0/3, changed state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to upSwitch(config-if)#exitSwitch(config)#int f0/3Switch(config-if)#no switchport %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed st
11、ate to down%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to upSwitch(config-if)#Switch(config-if)#ip address 192.168.10.1 255.255.255.0Switch(config-if)#no shutSwitch(config-if)#exitSwitch(config)#ip routingSwitch(config-if)#exitSwitch(config)#ip route 0.0.0.0 0.0.0.
12、0 192.168.10.2Switch(config)#路由器的配置：RouterenRouter#confConfiguring from terminal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z.Router(config)#int f0/0Router(config-if)#no shut%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to upRouter(config-if)#
13、exitRouter(config)#int f0/1Router(config-if)#no shut%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to upRouter(config-if)#exitRouter(config)#int f0/0Router(config-if)#no shutRouter(config-if)#exitRouter(co
14、nfig)#int f0/0.1Router(config-subif)#encapsulation dot1Q 1Router(config-subif)#ip address 192.168.3.168 255.255.255.0Router(config-subif)#exitRouter(config)#int f0/0.2Router(config-subif)#encapsulation dot1Q 2Router(config-subif)#ip addRouter(config-subif)#ip address 192.168.4.168 255.255.255.0Route
15、r(config-subif)#exitRouter(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.1Router(config)#exit%SYS-5-CONFIG_I: Configured from console by consoleRouter#confConfiguring from terminal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z.Router(config)#int f0/1Router(config-if)#ip addRouter(config-if)#ip address 192.168.10.2 255.255.255.0Router(config-if)#