wan连接路由器执行以下操作四天routing.pptx

wan连接路由器执行以下操作四天routing.pptx

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WANConnectionsEnablingStaticRouting

Arouterneedstodothefollowing:Knowthedestinationaddress.Identifythesourcesfromwhichtheroutercanlearn.Discoverpossibleroutestotheintendeddestination.Selectthebestroute.Maintainandverifyroutinginformation.RouterOperations

Routersmustlearndestinationsthatarenotdirectlyconnected.RouterOperations(Cont.)

StaticrouteUsesaroutethatanetworkadministratorentersintotheroutermanuallyDynamicrouteUsesaroutethatanetworkroutingprotocoladjustsautomaticallyfortopologyortrafficchangesIdentifyingStaticandDynamicRoutes

StaticRoutesConfigureunidirectionalstaticroutestoandfromastubnetworktoallowcommunicationstooccur.

DefinesapathtoanIPdestinationnetworkorsubnetorhostAddress=IPaddressofthenexthoprouterInterface=outboundinterfaceofthelocalrouterRouterX(config)#iproutenetwork[mask]

{address|interface}[distance][permanent]StaticRouteConfiguration

StaticRouteExampleThisisaunidirectionalroute.Youmusthavearouteconfiguredintheoppositedirection.RouterX(config)#iproute172.16.1.0255.255.255.0172.16.2.1Router(config)#iproute172.16.1.0255.255.255.0s0/0/0or

DefaultRoutesThisrouteallowsthestubnetworktoreachallknown networksbeyondRouterA.

VerifyingtheStatic

RouteConfigurationRouterX#showiprouteCodes:C-connected,S-static,I-IGRP,R-RIP,M-mobile,B-BGPD-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterareaE1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGPi-IS-IS,L1-IS-ISlevel-1,L2-IS-ISlevel-2,*-candidatedefaultU-per-userstaticroute?Gatewayoflastresortis0.0.0.0tonetwork0.0.0.0?10.0.0.0/8issubnetted,1subnetsC10.1.1.0isdirectlyconnected,Serial0/0/0S*0.0.0.0/0isdirectlyconnected,Serial0

SummaryRoutingistheprocessbywhichitemsgetfromonelocationtoanother.Innetworking,arouter

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