实验十六、路由器广域网X.25 封装配置
实验十六、路由器广域网X.25 封装配置
一、实验目的
1. 掌握广域网X.25 封装配置
2. 理解X.121 地址概念
3. 理解影射的关系
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
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 x25 ！封装x.25 协议
Router-A_config_s1/1# x25 interface dce ！配置x.25 的DCE
Router-A_config_s1/1# x25 address 12345679 ！配置X.25 地址
Router-A_config_s1/1# x25 map 192.168.1.2 svc 12345678 broadcast
！配置X.25 地址与对端IP 的映射
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
Serial1/1 is up, line protocol is down
Mode=Sync DCE Speed=64000
DTR=UP,DSR=UP,RTS=UP,CTS=UP,DCD=UP
Interface address is 192.168.1.1/24
MTU 1500 bytes, BW 64 kbit, DLY 2000 usec
Encapsulation X25, loopback not set
LAPB DCE, module 8, k 7, N1 1500, N2 16, T1 3
state AWAIT_EST, VS 0, VR 0, Remote VR 0
IFRAMEs 0/0, RRs 0/0, RNRs 0/0, REJs 0/0
FRMRs 0/0, SABMs 0/34, SABMEs 0/0
UAs 0/0, DMs 0/0, DISCs 0/0
X25 DCE, address 1234567, modulo 8, I/O window size 2 2, packet size 128 128
Virtual Circuits: One-way 0, Two-way 16, PVC 0, SVC 16
Timers: T10 60s, T11 180s, T12 60s, T13 60s, idle VC timeout 100s
RESTARTs 0/0, RESTART CONFIRMs 0/0, DIAGs 0/0
CALLs 0/0, CALL CONFIRMs 0/0, CLEARs 0/0, CLEAR CONFIRMs 0/0
DATAs 0/0, RRs 0/0, RNRs 0/0
RESETs 0/0, RESET CONFIRMs 0/0, INTERRUPTs 0/0, INTERRUPT CONFIRMs 0/0
60 second input rate 20 bits/sec, 0 packets/sec!
60 second output rate 10 bits/sec, 0 packets/sec!
940 packets input, 22890 bytes, 4 unused_rx, 0 no buffer
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1201 packets output, 25888 bytes, 8 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
Router-A#sh x25 vc ！查看X.25 状态信息
X.25/IP state Serial1/1 DOWN
=====================================================================
==========
No. Port VC I/O State X.121 Address IP Address Flag
=====================================================================
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 X25 ！封装X.25 协议
Router-B_config_s1/1# x25 address 12345679
Router-B_config_s1/1# frame-relay intf-type dte ！配置X.25 的DTE
Router-B_config_s1/1# x25 map 192.168.1.2 svc 12345678 broadcast
！配置X.25 地址与对端IP 的映射
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
Router-A#show X25 vc ！查看X.25 状态信息
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