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vlan

R2-SW#vlan database

R2-SW(vlan)#vlan 10

VLAN 10 modified:

R2-SW(vlan)#vlan 20

VLAN 20 modified:

R2-SW(vlan)#exit

R2-SW#conf t

与pc对接的端口分别接入vlan10，vlan20

R2-SW(config)#interface FastEthernet1/1

R2-SW(config-if)#switchport mode access

R2-SW(config-if)#switchport access vlan 10

 

R2-SW(config)#interface FastEthernet1/2

R2-SW(config-if)#switchport mode access

R2-SW(config-if)#switchport access vlan 20

配置trunk口

R2-SW(config)#int f1/15

R2-SW(config-if)#switchport mode trunk

R2-SW(config-if)#switchport trunk encapsulation dot1q

R2-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