通過(guò)浮動(dòng)的靜態(tài)路由實(shí)現(xiàn)鏈路備份

通過(guò)浮動(dòng)的靜態(tài)路由實(shí)現(xiàn)鏈路備份【實(shí)驗(yàn)名稱】通過(guò)浮動(dòng)的靜態(tài)路由實(shí)現(xiàn)鏈路備份【實(shí)驗(yàn)?zāi)康摹空莆胀ㄟ^(guò)改變靜態(tài)路由的管理距離值來(lái)實(shí)現(xiàn)浮動(dòng)的靜態(tài)路由?！颈尘懊枋觥磕闶枪靖呒?jí)網(wǎng)絡(luò)管理員，公司內(nèi)部有一個(gè)很重要的服務(wù)器所在網(wǎng)段為192.168.12.0/24,平常訪問(wèn)通過(guò)R1R3的OSPF路由協(xié)議，為了保證該網(wǎng)段隨時(shí)能夠訪問(wèn)，不能因?yàn)殒溌饭收铣鰡?wèn)題，要求你實(shí)現(xiàn)一個(gè)備份冗余的功能，請(qǐng)給予支持。【實(shí)現(xiàn)功能】保證在擁有冗余鏈路的時(shí)候，主鏈路失效，備份鏈路工作?！緦?shí)驗(yàn)拓?fù)洹?92.168.12.0/24soR3FlF0Aiea192.168.23.2/24192.168.13.AIsoR3FlF0Aiea192.168.23.2/24192.168.13.AI192.168.13.377塁/192.168.23.3/24【實(shí)驗(yàn)設(shè)備］R2624（3臺(tái)）V35DCE（2根）、V35DTE（2根）【實(shí)驗(yàn)步驟】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驗(yàn)證測(cè)試：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：配置主鏈路路由以及備份鏈路路由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!配置備份路由的管理距離必須人于主路由的管理距離驗(yàn)證測(cè)試：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：當(dāng)主鏈路down的時(shí)候，町以通過(guò)備份鏈路通信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：當(dāng)主鏈路up的時(shí)候，仍然用主鏈路通信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【注意事項(xiàng)】配置備份路由的管理距離必須人于主路由的管理距離。【參考配置】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