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1、动态IGRP路由IGRP协议IGRP由于突破了15跳的限制,成为了当时大型CISCO网络的首选协议。(100->大型网络)RIP与IGRP的工作机制,均是从所有配置接口上定期发出路由更新。但是,RIP是以跳数为度量单位;IGRP以多种因素来建立路由最佳路径;带宽,延迟,可靠性,最大传输单元,LOAD等因素。什么是区域?区域拓朴从区域外是看不见的结果是路由业务的大量减少BackboneArea#0Area#3Area#2Area#1IGRP的配置:2501(config)#routerigrp1002501(config-router)#network19
2、2.168.2.02501(config-router)#exit注意:1)编号的有效范围为1-65535,编号用确定一组区域编号相同的路由器和接口2)不同的编号的路由器不参与路由更新IGRP的验证:2501#showrun(查看配置文件)2501#showipprotocols(IP路由协议)2501#showiproute(IP路由表)2501#showiprouteC-connected,直接相连的网络;S-static,静态路由I-IGRP,R-RIP,B-BGP,D-EIGRP,O-OSPF,路由配置修改:1,路由删除:2501(config)
3、#norouterigrp1002501(config)#2,IP地址的删除2501(config)#ints02501(config-if)#noipadd2501(config-if)#noipaddress2501(config-if)#routerigrp100network172.16.0.0network10.0.0.0IGRPConfigurationExamplerouterigrp100network10.0.0.0routerigrp100network192.168.1.0network10.0.0.0AutonomousSyste
4、m=100172.16.1.1S2E0S3192.168.1.110.1.1.110.2.2.210.1.1.2S2S310.2.2.3172.16.1.0ABC192.168.1.0E0VerifyingtheRoutingProtocol—IGRPRouterA#shipprotocolsRoutingProtocolis"igrp100"Sendingupdatesevery90seconds,nextduein21secondsInvalidafter270seconds,holddown280,flushedafter630Outgoingup
5、datefilterlistforallinterfacesisIncomingupdatefilterlistforallinterfacesisDefaultnetworksflaggedinoutgoingupdatesDefaultnetworksacceptedfromincomingupdatesIGRPmetricweightK1=1,K2=0,K3=1,K4=0,K5=0IGRPmaximumhopcount100IGRPmaximummetricvariance1Redistributing:igrp100RoutingforNetwo
6、rks:10.0.0.0172.16.0.0RoutingInformationSources:GatewayDistanceLastUpdate10.1.1.210000:01:01Distance:(defaultis100)172.16.1.1S2E0S3192.168.1.110.1.1.110.2.2.210.1.1.2S2S310.2.2.3172.16.1.0ABC192.168.1.0E0DisplayingtheIPRoutingTableRouterA#shiprouteCodes:C-connected,S-static,I-IG
7、RP,R-RIP,M-mobile,B-BGPD-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterareaN1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGPi-IS-IS,L1-IS-ISlevel-1,L2-IS-ISlevel-2,*-candidatedefaultU-per-userstaticroute,o-ODRT-trafficengineeredrouteGate
8、wayoflastresortisnotset172.16.0.0/24issu