单臂路由和二层交换的联合应用

针对一个路由与交换的实际内容进行相关的配置和说明

 

这个在用模拟器做的时候搭建的拓扑，说明，R1为单臂路由，R0为路由器模拟的交换机，R2和R3模拟的是连接到交换机的PC。分布接入不同的VLAN，R2接入VLAN10，R3接入VLAN20。

配置：

------------------------------

R1

en

conf  t

no ip do lo

line con 0

no exec-t

logg sync

exit

int fa0/0

no sh   //启动接口，否则子接口会起不来的

int fa0/0.10

encapsulation dot1q vlan 10 //映射到VLAN10

ip add 10.10.1.1 255.255.255.0

no sh  //配置的VLAN10的网关

 

int fa0/0.20

encapsulation dot1q vlan 10 //映射到VLAN20

ip add 10.20.1.1 255.255.255.0

no sh

 

ip route 10.10.1.0 255.255.255.0 fa0/0.10

ip route 10.20.1.0 255.255.255.0 fa0/0.20  //配置静态路由，将两个VLAN连接通信

-------------------------

R0 模拟的是交换机

en

conf  t

no ip do lo

line con 0

no exec-t

logg sync

exit

no ip routing //模拟成交换机

exit

vlan data

vlan 10

vlan 20

exit

conf  t

int fa0/0

swi mode trunk

exit

int fa0/1

swi mode access

swi access vlan 10

exit

int vlan 10

ip add 10.10.1.2 255.255.255.0

no sh

exit

int fa0/10

switch mode access

swi access vlan 20

exit

int vlan 20

ip add 10.20.1.2 255.255.255.0

no sh

exit

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R2

en

conf  t

no ip do lo

line con 0

no exec-t

logg sync

exit

no ip routing //模拟成PC

int f0/0

ip add 10.10.1.10 255.255.255.0

exit

ip default-gateway 10.10.1.1

exit

------------------------

R3

en

conf  t

no ip do lo

line con 0

no exec-t

logg sync

exit

no ip routing //模拟成PC

int f0/0

ip add 10.20.1.20 255.255.255.0

exit

ip default-gateway 10.20.1.1

exit

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