通过浮动的静态路由实现链路备份

通过浮动的静态路由实现链路备份【实验名称】通过浮动的静态路由实现链路备份【实验目的】掌握通过改变静态路由的管理距离值来实现浮动的静态路由。【背景描述】你是公司高级网络管理员，公司内部有一个很重要的服务器所在网段为192.168.12.0/24,平常访问通过R1R3的OSPF路由协议，为了保证该网段随时能够访问，不能因为链路故障出问题，要求你实现一个备份冗余的功能，请给予支持。【实现功能】保证在拥有冗余链路的时候，主链路失效，备份链路工作。【实验拓扑】192.168.12.0/24soR3FlF0Aiea192.168.23.2/24192.168.13.AIsoR3FlF0Aiea192.168.23.2/24192.168.13.AI192.168.13.377塁/192.168.23.3/24【实验设备］R2624（3台）V35DCE（2根）、V35DTE（2根）【实验步骤】第一步：基本配置Red-Giaiit(coiifig)#hosR3R3(config)#intsOR3(config-if)#ipadd192.168.13.3255.255.255.0R3(config-if)#clockrate64000R3(config-if)?rnoshR3(config-if)#mtfOR3(config-if)#ipadd192.168.4.1255.255.255.0R3(config-if)?rnoshR3(config)#intflR3(config-if)#ipadd192.168.3.1255.255.255.0R3(config-if)?rnoshR3(config)#intsiR3(config-if)#ipadd192.168.23.3255.255.255.0R3(config-if)#clla64000R3(config-if)?rnoshR3(config-if)#endRed-Giaiit(coiifig)#Red-Giaiit(coiifig)#hosR2R2(config)#intsOR2(config-if)#intsOR2(config-if)#ipadd192.168.23.2255.255.255.0R2(config-if)?rnoshR2(config-if)#mtfOR2(config-if)#ipadd192.168.12.2255.255.255.0R2(config-if)?rnoshR2(config-if)#endRed-Giaiit(coiifig)#hosR1Rl(config)#intsORl(config-if)#ipadd192.168.12.1255.255.255.0Rl(config-if)?rnoshRl(config-if)#mtsORl(config-if)?rnoshRl(config-if)#endRl#coiiftRl(config)#intfORl(config-if)#ipadd192.168.12.1255.255.255.0Rl(config-if)?rnosh验证测试：Rl#pmg192.168.13.3Typeescapesequencetoabort.Sendmg5,100-byteICMPEchoesto192.168.13.3,timeoutis2seconds:!!!!!R2#ping192.168.23.3Typeescapesequencetoabort・Sendmg5,100-byteICMPEchoesto192.168.23.3,timeoutis2seconds:!!!!!第二步：配置主链路路由以及备份链路路由Rl(config)#routeros1R1(config-routei)#net192.168.13.00.0.0.255area0R1(config-routei)#net192.168.12.00.0.0.255area2R3(config)#routeros1R3(config-routei)#net192.168.13.00.0.0.255area0R3(config-routei)#net192.168.4.00.0.0.255area1R3(config-router)#net192.168.3.00.0.0.255arealR3(config)#iproute192.168.12.0255.255.255.0serial1150!配置备份路由的管理距离必须人于主路由的管理距离验证测试：R3#shiproCodes:C-connected.S-static,R-RIPO-OSPEIA-OSPFinteraieaEl-OSPFexternaltypebE2・OSPFexternaltype2GatewayoflastresortisnotsetOIA192.168.12.0/24[110/49]via192.16&13.1,00:00:42,SerialOC192.168.13.0/24isduectlyconnected,SerialOC192.168.3.0/24isduectlvcoimected.FastEthernetlJ *C192.168.4.0/24isduectlvcoimected.FastEthernetOJ *C192.168.23.0/24isduectlycoimected,Serial1第三步：当主链路down的时候，町以通过备份链路通信R3(config)#ints0R3(config-if)#shutR3(config-if)#%UPDOWN:LmeprotocolonInterfaceSerialO,changedstatetodownendR3#%CHANGED:IiiteiiaceSerialO,changedstatetoadministrativelydownR3#shipioCodes:C-connected.S-static,R-RIPO-OSPEIA-OSPFinteraieaEl-OSPFexternaltypebE2・OSPFexternaltype2GatewayoflastresortisnotsetS192.168.12.0/24isdirectlycomiected,Serial1C192.168.3.0/24isduectlvconnected.FastEthernetlJ "C192.168.4.0/24isduectlvcoimected.FastEthernetOJ "C192.168.23.0/24isduectlycoimected,Serial1第四步：当主链路up的时候，仍然用主链路通信R3(config)#ints0R3(config-if)?rnoshR3#shiproCodes:C-connected.S-static,R-RIPO・OSPEIA-OSPFinteraieaEl・OSPFexternaltype1,E2-OSPFexternaltype2GatewayoflastresortisnotsetOIA192.168.12.0/24[110/49]via192.168.13.1,00:14:45,SenalOC192.168.13.0/24isduectlycoimected,SerialOC192.168.3.0/24isduectlvconnected.FastEthernetlJ "C192.168.4.0/24isduectlvcoimected.FastEthernetOJ "C192.168.23.0/24isduectlyconnected,Serial1【注意事项】配置备份路由的管理距离必须人于主路由的管理距离。【参考配置】R3#shrunCurrentconfiguration:!version6.14(2)!hostnameMR3H!ipsubnet-zero!iiiteiiaceFastEthernetOipaddress192.168.4.1255.255.255.0!iiiteiiaceFastEthernetlipaddress192.168.3.1255.255.255.0!iiiteiiaceFastEthernet2noipaddressshutdowniiiteiiaceFastEthernet3noipaddressshutdowniiiiteiiaceSerialOipaddress192.168.13.3255.255.255.0clockrate64000iiiiteiiaceSerial1ipaddress192.168.23.3255.255.255.0clockrate64000irouterospf1network192.168.13.00.0.0.255area0network192.168.4.00.0.0.255area1network192.168.3.00.0.0.255area1iipclasslessiproute192.16&12.0255.255.255.0Serial1150ilmecon0lmeaux0lmevty04loginiendRl#shrunCurrentconfiguration:iversion6.14(2)ihostnameMR1"iipsubnet-zeroiiiiteiiaceFastEthernetOipaddress192.168.12.1255.255.255.0iiiiteiiaceFastEthernetlnoipaddressshutdowninterfaceFastEthernet2noipaddressshutdown!mteiiaceFastEthernet3noipaddressshutdown!mteiiaceSerialOipaddress192.168.13.1255.255.255.0!mteiiaceSerial1noipaddressshutdown!routerospf1network192.168.13.00.0.0.255area0network192.168.12.00.0.0.255area2!ipclassless!lmecon0lmeaux0lmevty04nologini■endR2#shmilCurrentconfiguration:!version6.14(2)!hostnameMR2H!ipsubnet-zero!mteiiaceFastEthernetOipaddress192.168.12.2255.255.255.0!mteiiaceFastEthernetlnoipaddress