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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 均能相互通信交换机
2、的配置命令：SW 0:Switch Switchen Switch#conf Configuring from terminal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#vlan 2 Switch(config-vlan)#exit Switch(config)#int f0/2 Switch(config-if)#switchport access vlan 2 Switch(config-if)#no shut Swit
3、ch(config-if)#int f0/3 Switch(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 up Switch(config-if)#exit Switch(config)#SW 1:Switchen Switch#conf C
4、onfiguring from terminal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/2 Switch(config-if)#switchport access vlan 2 % Access VLAN does not exist. Creating vlan 2 Switch(config-if)#no shut Switch(config-if)#exit Switch(config)#int f0/
5、3 Switch(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 up Switch(config-if)#SW 2: Switchen Switch#conf Configuring from terminal, memory, or net
6、work terminal? Enter configuration commands, one per line. End with CNTL/Z.Switch(config)#int f0/2 Switch(config-if)#switchport access vlan 2 % Access VLAN does not exist. Creating vlan 2 Switch(config-if)#exitSwitch(config)#int f0/3 Switch(config-if)#switchport mode trunk Switch(config-if)#三层交换的配置命
7、令：Switchen Switch#conf Configuring from terminal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#int f0/1 Switch(config-if)#switchport mode trunk %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down Switch(co
8、nfig-if)#exit Switch(config)#int f0/2 Switch(config-if)#switchport mode trunk Switch(config-if)#exit Switch(config)#vlan 2 Switch(config-vlan)#exit Switch(config)#int vlan 1 Switch(config-if)#no shut%LINK-5-CHANGED: Interface Vlan1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface
9、 Vlan1, changed state to up Switch(config-if)#ip address 192.168.1.168 255.255.255.0 Switch(config-if)#exit Switch(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 add Switch(config-
10、if)#ip address 192.168.2.168 255.255.255.0 Switch(config-if)# %LINK-5-CHANGED: Interface FastEthernet0/3, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up Switch(config-if)#exit Switch(config)#int f0/3 Switch(config-if)#no switchport %LINEPROTO
11、-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)# Switch(config-if)#ip address 192.168.10.1 255.255.255.0 Switch(config-if)#no shut Switch(config-if)#exit Switch(config)#i
12、p routing Switch(config-if)#exit Switch(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.2 Switch(config)#路由器的配置：Routeren Router#conf Configuring from terminal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int f0/0 Router(config-if)#no shut%LINK
13、-5-CHANGED: Interface FastEthernet0/0, changed state to up Router(config-if)#exit Router(config)#int f0/1 Router(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 up Router(config-if)#ex
14、it Router(config)#int f0/0 Router(config-if)#no shut Router(config-if)#exit Router(config)#int f0/0.1Router(config-subif)#encapsulation dot1Q 1 Router(config-subif)#ip address 192.168.3.168 255.255.255.0 Router(config-subif)#exit Router(config)#int f0/0.2 Router(config-subif)#encapsulation dot1Q 2 R
15、outer(config-subif)#ip add Router(config-subif)#ip address 192.168.4.168 255.255.255.0 Router(config-subif)#exit Router(config)#ip route 0.0.0.0 0.0.0.0 192.168.10.1 Router(config)#exit %SYS-5-CONFIG_I: Configured from console by console Router#conf Configuring from terminal, memory, or network terminal? Enter configuration commands, one per line. End with CNTL/Z. Router(config)#int f0/1Router(config-if)#ip add Router(config-if)#ip address 192.168.10.2 255.255.255.0 Router(config-if)#
