思科单臂路由实验

实验拓扑图：

pc1和pc2分别接入同一交换机的不同vlan，交换机一端口配置trunk与路由器一端口对接，路由器开启dhcp功能，pc1和pc2分别能够获取到ip，并且通过路由的网关ip实现pc1和pc2互通。
在交换机做配置1.配置vlanR2-SW#vlan databaseR2-SW(vlan)#vlan 10VLAN 10 modified:R2-SW(vlan)#vlan 20VLAN 20 modified:R2-SW(vlan)#exitR2-SW#conf t
与pc对接的端口分别接入vlan10，vlan20R2-SW(config)#interface FastEthernet1/1R2-SW(config-if)#switchport mode accessR2-SW(config-if)#switchport access vlan 10 R2-SW(config)#interface FastEthernet1/2R2-SW(config-if)#switchport mode accessR2-SW(config-if)#switchport access vlan 20
配置trunk口R2-SW(config)#int f1/15R2-SW(config-if)#switchport mode trunkR2-SW(config-if)#switchport trunk encapsulation dot1qR2-SW(config-if)#switchport trunk allowed vlan all

配置路由器
配置子接口ip，并且子接口需要封装vlan标示
R1(config)#ip routing
R1(config)#interface FastEthernet0/1.1
R1(config-subif)#encapsulation dot1Q 10
R1(config-subif)#ip address 192.168.10.1 255.255.255.0

R1(config)#interface FastEthernet0/1.2
R1(config-subif)#encapsulation dot1Q 20
R1(config-subif)#ip address 192.168.20.1 255.255.255.0

开启该端口
R1(config)#interface FastEthernet0/1
R1(config)#no shutdown

分别配置两个dhcp，分发ip地址
R1(config)#ip dhcp pool vlan10
R1(dhcp-config)#network 192.168.10.0
R1(dhcp-config)#network 192.168.10.0 255.255.255.0
R1(dhcp-config)#default-router 192.168.10.1
R1(dhcp-config)#exit
R1(config)#ip dhcp pool vlan20
R1(dhcp-config)#network 192.168.20.0
R1(dhcp-config)#network 192.168.20.0 255.255.255.0
R1(dhcp-config)#default-router 192.168.20.1

验证结果