1、一、配置基本拓扑结构一台主路由器、二台交换机、二台测试路由器，测试路由器充当电脑使用
2、二、配置接口IP地址R1的接口：[R1-GigabitEthernet0/0/1]ip address 10.0.2.2 255.255.255.0R2的接口：[R2-GigabitEthernet0/0/2]ip address 10.0.3.2 255.255.255.0R3的接口：interface GigabitEthernet0/0/1 ip address 10.0.2.1 255.255.255.0 interface GigabitEthernet0/0/2 ip address 10.0.3.1 255.255.255.0
3、三、关闭S2的G0/0/4接口并S1、S2的G0/0/09接口加入VLAN3[S2]interfa艘早祓胂ce GigabitEthernet 0/0/4[S2-GigabitEthernet0/0/4]shutdown[S2]interface GigabitEthernet 0/0/9[S2-GigabitEthernet0/0/9]port link-type access[S2-GigabitEthernet0/0/9]port default vlan 3[S1]interface GigabitEthernet 0/0/9[S1-GigabitEthernet0/0/9]port link-type access[S1-GigabitEthernet0/0/9]port default vlan 3
4、四、将S1的G0/0/4接口改成TRUNK模式，允许通过VLAN2、VLAN3[S1]interface GigabitEthernet 0/0/4[S1-GigabitEthernet0/0/4]port default vlan 1[S1-GigabitEthernet0/0/4]port link-type trunk[S1-GigabitEthernet0/0/4]port trunk allow-pass vlan 2 3
5、五、在R3上的G0/0/1接口上配置子接口，同时在子接口配置ip地址，把接口配置成Dot1q,终结以太网接子接口[R4柯计瓤绘]inter GigabitEthernet 0/0/1.2[R4-GigabitEthernet0/0/1.2]control-vid 20 dot1q-termination[R4-GigabitEthernet0/0/1.2]dot1q termination vid 2[R4-GigabitEthernet0/0/1.2]arp broadcast enable[R4-GigabitEthernet0/0/1.2]ip address 10.0.20.1 24[R4-GigabitEthernet0/0/1.2]inter GigabitEthernet 0/0/1.3[R4-GigabitEthernet0/0/1.3]control-vid 30 dot1q-termination[R4-GigabitEthernet0/0/1.3]dot1q termination vid 3[R4-GigabitEthernet0/0/1.3]arp broadcast enable[R4-GigabitEthernet0/0/1.3]ip address 10.0.30.1 24
6、六、更改R1、R2的IP地址恽但炎杰和网关[R1]inter GigabitEthernet 0/0/1[R1-GigabitEthernet0/0/1]ip address 10.0.20.2 24[R1-GigabitEthernet0/0/1]quit[R1]undo ip route-static 0.0.0.0 0 10.0.2.1[R1]ip route-static 0.0.0.0 0 10.0.20.1[R2]interface GigabitEthernet 0/0/2[R2-GigabitEthernet0/0/2]ip address 10.0.30.2 24[R2-GigabitEthernet0/0/2]quit[R2]undo ip route-static 0.0.0.0 0 10.0.3.1[R2]ip route-static 0.0.0.0 0 10.0.30.1
7、七、验证实验结果[R1]ping -c 1 10.0.30.2PING 10.0.30.2: 56 data bytes, press CTRL_C to breakReply from 10.0.30.2: bytes=56 Sequence=1 ttl=254 time=3 ms--- 10.0.30.2 ping statistics ---1 packet(s) transmitted1 packet(s) received0.00% packet lossround-trip min/avg/max = 3/3/3 ms
