思科单臂路由的配置

实验拓扑

因为跨VLAN通信，所以交换机出口要设置trunk。路由器也要设置子接口并封装帧。

路由器关键配置：

interface GigabitEthernet0/0.10

encapsulation dot1Q 10

ip address 192.168.10.1 255.255.255.0

interface GigabitEthernet0/0.20

encapsulation dot1Q 20

ip address 192.168.20.1 255.255.255.0

interface GigabitEthernet0/1.10

encapsulation dot1Q 20

interface GigabitEthernet0/1.30

encapsulation dot1Q 30

ip address 192.168.30.1 255.255.255.0

交换机关键配置：

interface FastEthernet0/1

switchport access vlan 10

!

interface FastEthernet0/2

switchport access vlan 10

!

interface FastEthernet0/3

switchport access vlan 20

interface FastEthernet0/23

switchport mode trunk

!

interface FastEthernet0/24

switchport mode trunk

interface Vlan30

ip address 192.168.30.12 255.255.255.0     //管理VLAN30