实验六、路由器广域网PPP 封装配置

实验六、路由器广域网PPP 封装配置

一、实验目的

1. 掌握广域网HDLC 封装配置

2. 理解DCE、DTE

3. 理解封装匹配

二、应用环境

1. 企业环境中异地的互连通常要经过第三方的网络,比如网通、电信等等,所以与局域网

的配置不同

2. 广域网通常需要付费、带宽比较有限、可靠性相比局域网要低

三、实验设备

1. DCR-1751 两台

2. CR-V35MT 一条

3. CR-V35FC 一条

四、实验拓扑

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五、实验要求

Router-A Router-B

接口 IP 地址 接口 IP 地址

S1/1 DCE 192.168.1.1 S1/0 DTE 192.168.1.2

六、实验步骤

第一步 Router-A 的配置

Router>enable !进入特权模式

Router #config !进入全局配置模式

Router _config#hostname Router-A !修改机器名

Router-A_config#interface s1/1 !进入接口模式

Router-A_config_s1/0#ip address 192.168.1.1 255.255.255.0 !配置IP 地址

Router-A_config_s1/1#encapsulation PPP !封装PPP 协议

Router-A_config_s1/0#physical-layer speed 64000 !配置DCE 时钟频率

Router-A_config_s1/0#no shutdown

Router-A_config_s1/0#^Z !按ctrl + z 进入特权模式

第二步:查看配置

Router-A#show interface s1/1 !查看接口状态

Serial1/0 is up, line protocol is down !对端没有配置,所以协议是DOWN

Mode=Sync DCE Speed=64000 !查看DCE

DTR=UP,DSR=UP,RTS=UP,CTS=DOWN,DCD=UP

Interface address is 192.168.1.1/24 !查看IP 地址

MTU 1500 bytes, BW 64 kbit, DLY 2000 usec

Encapsulation prototol PPP, link check interval is 10 sec !查看封装协议

Octets Received0, Octets Sent 0

Frames Received 0, Frames Sent 0, Link-check Frames Received0

Link-check Frames Sent 89, LoopBack times 0

Frames Discarded 0, Unknown Protocols Frames Received 0, Sent failuile 0

Link-check Timeout 0, Queue Error 0, Link Error 0,

60 second input rate 0 bits/sec, 0 packets/sec!

60 second output rate 0 bits/sec, 0 packets/sec!

0 packets input, 0 bytes, 8 unused_rx, 0 no buffer

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

8 packets output, 192 bytes, 0 unused_tx, 0 underruns

error:

0 clock, 0 grace

PowerQUICC SCC specific errors:

0 recv allocb mblk fail 0 recv no buffer

0 transmitter queue full 0 transmitter hwqueue_full

第三步:Router-B 的配置

Router>enable !进入特权模式

Router #config !进入全局配置模式

Router _config#hostname Router-B !修改机器名

Router-B_config#interface s1/0 !进入接口模式

Router-B_config_s1/0#ip address 192.168.1.2 255.255.255.0 !配置IP 地址

Router-B_config_s1/1#encapsulation PPP !封装PPP 协议

Router-B_config_s1/0#no shutdown

Router-B_config_s1/0#^Z !按ctrl + z 进入特权模式

第四步:查看配置

Router-A#show interface s1/0 !查看接口状态

Serial1/0 is up, line protocol is up !接口和协议都是up Mode=Sync DTE !查看DTE

DTR=UP,DSR=UP,RTS=UP,CTS=DOWN,DCD=UP

Interface address is 192.168.1.2/24 !查看IP 地址

MTU 1500 bytes, BW 64 kbit, DLY 2000 usec

Encapsulation prototol PPP, link check interval is 10 sec !查看封装协议

Octets Received0, Octets Sent 0

Frames Received 0, Frames Sent 0, Link-check Frames Received0

Link-check Frames Sent 89, LoopBack times 0

Frames Discarded 0, Unknown Protocols Frames Received 0, Sent failuile 0

Link-check Timeout 0, Queue Error 0, Link Error 0,

60 second input rate 0 bits/sec, 0 packets/sec!

60 second output rate 0 bits/sec, 0 packets/sec!

0 packets input, 0 bytes, 8 unused_rx, 0 no buffer

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

8 packets output, 192 bytes, 0 unused_tx, 0 underruns

error:

0 clock, 0 grace

PowerQUICC SCC specific errors:

0 recv allocb mblk fail 0 recv no buffer

0 transmitter queue full 0 transmitter hwqueue_full

第五步:测试连通性

Router-A#ping 192.168.1.2

PING 192.168.1.2 (192.168.1.2): 56 data bytes

!!!!!

--- 192.168.1.2 ping statistics ---

5 packets transmitted, 5 packets received, 0% packet loss

round-trip min/avg/max = 20/22/30 ms

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