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1、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-17512.CR-V35MT 3.CR-V35FC四、实验拓扑五、实验要求Router-A接口两台一条一条IP 地址Router-B接口IP 地址S1/1DCE 192.168.1.1六、实验步骤第一步 Router-A 的配置Routerenable Router #confi
2、g Router _config#hostname Router-AS1/0 DTE 192.168.1.2！进入特权模式！进入全局配置模式！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 x25Router-A_config_s1/1# x25 interface dceRouter-A_config_s1/1# x25 address 12345679
3、 ！封装 x.25 协议！配置 x.25 的 DCE！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 64000Router-A_config_s1/0#no shutdownRouter-A_config_s1/0#Z 第二步：查看配置Router-A#show interface s1/1Serial1/1 is up, line protocol is down
4、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
5、/0 FRMRs 0/0, SABMs 0/34, SABMEs 0/0 UAs 0/0, DMs 0/0, DISCs 0/0！配置 DCE 时钟频率！按 ctrl + z 进入特权模式！查看接口状态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 R
6、ESTARTs 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/
7、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
8、full 0 transmitter hwqueue_fullRouter-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Routerenable Router #config Router _config#hostname Router-BRouter-B_config#interface s1/0 ！进入特权模式！进入全局配置模式！修改机器名！进入接口模式Router-B_config_s
9、1/0#ip address 192.168.1.2 255.255.255.0 ！配置 IP 地址Router-B_config_s1/1#encapsulation X25Router-B_config_s1/1#x25address 12345679Router-B_config_s1/1# frame-relay intf-type dte！封装 X.25 协议！配置 X.25 的 DTERouter-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
10、_s1/0#no shutdownRouter-B_config_s1/0#Z 第四步：查看配置Router-A#show interface s1/0Router-A#show X25 vc 第五步：测试连通性Router-A#ping 192.168.1.2PING 192.168.1.2 (192.168.1.2): 56 data bytes!- 192.168.1.2 ping statistics -！按 ctrl + z 进入特权模式！查看接口状态！查看 X.25 状态信息5 packets transmitted, 5 packets received, 0% packet l
11、ossround-trip min/avg/max = 20/22/30 ms 七、注意事项和排错1.注意 X.25 地址在实验中必须一致，但在实际中以服务商提供的为准2.MAP 映射的是对端的 IP 地址和 X.25 地址3.实际工作中只需要配置 DTE 即可八、配置序列路由器 A 的序列Router-A#show running-configBuilding configuration. Current configuration:!version 1.3.2Eservice timestamps log date service timestamps debug dateno servi
12、ce password-encryption!hostname Router-A!interface FastEthernet0/0 ip address 192.168.2.1 255.255.255.0 no ip directed-broadcast !interface Ethernet2/0 no ip address no ip directed-broadcast duplex half!interface Serial1/0 no ip address no ip directed-broadcast physical-layer speed 64000!interface Serial1/1 ip address 192.168.1.1 255.255.255.0 no ip directed-broadcast encapsulation x25 x25 address 1234567 x25 interface dce x25 map 192.168.1.2 svc 1234567 broadcast physical-layer speed 64000!interf
