Cisco 单臂路由试验

拓扑：

说明：

单臂是为了 降低成本，在R1的FA0/0口创建子接口。分别封装进VLAN10和20。在SW1上创建VLAN10,20，将PC1划分到VLAN 10,PC2划分到VLAN 20，FA1/5划分进TRUNK，PC1的网关是FA0/0.1的ip。PC2的网关是FA0/0.2的ip

SW1:

Router>en

Router#conf t

Router()#host SW1

SW1#vlan da

SW1(vlan)#vlan 10

VLAN 10 added:

Name: VLAN0010     (创建vlan)

SW1(vlan)#vlan 20

VLAN 20 added:

    Name: VLAN0020

SW1(vlan)#exi...

SW1#conf t

SW1(config)#int fa1/11

SW1()#sw mo ac

SW1(config-if)#switchport access vlan 10

SW1(config-if)#exi

SW1(config)#int fa1/12

SW1(config-if)#sw mo ac

SW1(config-if)#sw ac vlan 20

SW1(config-if)#exi

SW1(config)#int fa1/5

SW1(config-if)#switchport trunk encapsulation do

SW1(config-if)#sw mode trunk

R1：

Router>en

Router#conf t

Router(config)#host R1

R1(config)#int fa0/0

R1(config-if)#no sh

R1(config-if)#exi

R1(config)#int fa0/0.1    （创建子接口）

R1(config-subif)#ip add 10.1.1.254 255.255.255.0

R1(config-subif)#exi

R1(config)#ip routing

R1(config)#int fa0/0.1

R1(config-subif)#encapsulation do 10 （封装进vlan 10）

R1(config-subif)#ip add 10.1.1.254 255.255.255.0

R1(config-subif)#no sh

R1(config-subif)#int fa0/0.2

R1(config-subif)#encapsulation dot1Q 20

R1(config-subif)#ip add 10.1.2.254 255.255.255.0

R1(config-subif)#no sh

PC1:

Router>en

Router#conf t

PC1(config)#int fa0/0

PC1(config-if)#ip add 10.1.1.1 255.255.255.0     

PC1(config)#no ip routing

PC1(config)#ip default-gateway 10.1.1.254

PC1(config)#int fa0/0

PC1(config-if)#no sh

PC2

Router>en

Router#conf t

Router(config)#HOST PC2

PC2(config)#no ip routing

PC2(config)#int fa0/0

PC2(config-if)#ip add 10.1.2.1 255.255.255.0

PC2(config-if)#no sh

PC2(config)#ip default-gateway 10.1.2.254

测试：

PC1#ping 10.1.1.254

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.1.1.254, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 24/292/1248 ms

PC1#ping 10.1.2.254

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.1.2.254, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 44/55/72 ms

PC1#ping 10.1.2.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.1.2.1, timeout is 2 seconds:

..!!!