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首页 CCNP.642-902.V200题库(2013.2.20)实验题

CCNP.642-902.V200题库(2013.2.20)实验题.pdf

CCNP.642-902.V200题库(2013.2.20)实…

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2013-10-15 0人阅读 举报 0 0 暂无简介

简介:本文档为《CCNP.642-902.V200题库(2013.2.20)实验题pdf》,可适用于IT/计算机领域

培训大讲堂官方YY频道:鸿鹄论坛:bbshhcomCCNPCCNPCCNPCCNP题库考试代号:考试时间:分钟通过分数:题库版本:VVVV【优惠】CCNPCCNPCCNPCCNP官方正规报名考试仅需元((((团报更优惠))))附赠价值元的FTPFTPFTPFTP账号GGGG视频教程无限制下载加入CCNPCCNPCCNPCCNP题库战报群天天更新新题天天有战报!负责考前考后所有注册避免非技术性因素失误。鸿鹄大讲堂:http:bbshhcomthreadhtmlhttp:bbshhcomthreadhtmlhttp:bbshhcomthreadhtmlhttp:bbshhcomthreadhtml培训大讲堂官方YYYYYYYY频道:CCNPCCNPCCNPCCNP题库战报交流QQQQQQQQ群:(人超级群)CCNPCCNPCCNPCCNP题库战报交流区:http:bbshhcomforumhttp:bbshhcomforumhttp:bbshhcomforumhttp:bbshhcomforumhtmlhtmlhtmlhtmlGGGG视频教程免费下载:http:bbshhcomforumhtmlhttp:bbshhcomforumhtmlhttp:bbshhcomforumhtmlhttp:bbshhcomforumhtml:http:bbshhcom:http:bookhhcomEIGRPOSPFRedistributionSimQuestion:(Hopesomeonewillcontributethedetailedrequirementofthissim!)SomeinformationIhavegatheredsofar:RisanASBRforEIGRPandOSPFAREARisanASBRforEIGRPandOSPFAREAnote:sothereareTWOseparateareasonTWOseparateASBRSthusyouneedtodoredistributiononRandRRisONLYinEIGRP,andisTHEONLYrouteryoucanpingfromRhasaloopbackinterfacethatmustbepingedfromRRisrunningOSPFandhasredundantlinktoEIGRPnetworkoverRrouterNotice:YoushouldmakeapingfromRtonetworktomakesureeverythingisworkingcorrectlyThankstoPOONAMPOONAMPOONAMPOONAMwhosendusthetopologyandconfigurationHegotonEIGRPOSPFlabsothissolutionisperfect!Pleasesaythanktohimandotherswhocontributethislabsim!SOLUTIONfromPOONAMPOONAMPOONAMPOONAMbbshhcom:http:bbshhcom:http:bookhhcomAnswerAnswerAnswerAnswerandandandandExplanation:Explanation:Explanation:Explanation:Firstweneedtofindoutparameters(Bandwidth,Delay,Reliability,Load,MTU)ofthesinterface(theinterfaceofRconnectedtoR)forredistribution:R#R#R#R#showshowshowshowinterfaceinterfaceinterfaceinterfacessssWritedowntheseparameters,noticethatwehavetodividetheDelaybybecauseitsmetricunitistensofmicrosecondForexample,wegetBandwidth=Kbit,Delay=us,Reliability=,Load=,MTU=bytesthenwewouldredistributeasfollows:R#R#R#R#configconfigconfigconfigterminalterminalterminalterminalR(config)#R(config)#R(config)#R(config)#routerrouterrouterrouterospfospfospfospfR(configrouter)#R(configrouter)#R(configrouter)#R(configrouter)#redistributeredistributeredistributeredistributeeigrpeigrpeigrpeigrpmetrictypemetrictypemetrictypemetrictypesubnetssubnetssubnetssubnetsR(configrouter)#R(configrouter)#R(configrouter)#R(configrouter)#exitexitexitexitR(configrouter)#R(configrouter)#R(configrouter)#R(configrouter)#routerrouterrouterroutereigrpeigrpeigrpeigrpR(configrouter)#R(configrouter)#R(configrouter)#R(configrouter)#redistributeredistributeredistributeredistributeospfospfospfospfmetricmetricmetricmetric(Notice:Infact,theseparametersarejustusedforreferenceandwecanuseotherparameterswithnoproblemAlso,acandidatesaidthatthesimulatordidn’taccepttheBandwidthofinthatcase,wecanusealowervalue,likeIfthedelayisusthenweneedtodivideitby,thatis=)ForRweusetheshowinterfacefatogetparameterstooR#R#R#R#showshowshowshowinterfaceinterfaceinterfaceinterfacefafafafaForexamplewegetBandwidth=Kbit,Delay=us,Reliability=,Load=,MTU=bytesR#R#R#R#configconfigconfigconfigterminalterminalterminalterminalR(config)#R(config)#R(config)#R(config)#routerrouterrouterrouterospfospfospfospfR(configrouter)#R(configrouter)#R(configrouter)#R(configrouter)#redistributeredistributeredistributeredistributeeigrpeigrpeigrpeigrpmetrictypemetrictypemetrictypemetrictypesubnetssubnetssubnetssubnetsR(config)#R(config)#R(config)#R(config)#exitexitexitexitbbshhcom:http:bbshhcom:http:bookhhcomR(configrouter)#R(configrouter)#R(configrouter)#R(configrouter)#routerrouterrouterroutereigrpeigrpeigrpeigrpR(configrouter)#R(configrouter)#R(configrouter)#R(configrouter)#redistributeredistributeredistributeredistributeospfospfospfospfmetricmetricmetricmetricFinallyyoushouldtryto“showiproute”toseethenetwork(thenetworkbehindR)intheroutingtableofRandmakeapingfromRtothisnetworkMaybethe“copyrunningconfigstartupconfig”commandwillnotworkinthislabsodon’tworry,justskipitWISHUAVERYBESTGUYS………GOROCK…注意:考试的时候应该可以看到题干上有句thethethethegreatestgreatestgreatestgreatestbandwidthbandwidthbandwidthbandwidth这些字眼那么基本就是要加distancedistancedistancedistance另外记得一定要showshowshowshow下接口!!!本题干要求在R去ping的时候根据链路开销达到冗余的目的。下面就该问题分析:因为最终的目的是R能ping通而而而而pingpingpingping基于基于基于基于TCPTCPTCPTCP即有去有回即有去有回即有去有回即有去有回从去和回从去和回从去和回从去和回的两个方向分析冗余的两个方向分析冗余的两个方向分析冗余的两个方向分析冗余重点在重点在重点在重点在RRRR和和和和上上上上难点在难点在难点在难点在ASBRASBRASBRASBR的的的的RRRR和和和和RRRR上上上上((((重点在重点在重点在重点在两端难点在中间两端难点在中间两端难点在中间两端难点在中间))))在这里假设R和R上已经做了双向重发布:一一一一RRRR>>>>::::R要把数据包扔给R首先要学到路由将发生下列事件:、R通过OSPF学到路由重发布到EIGRP中默认EIGRP学到的是DEXAD=在EIGRP域内将学到的路由发给R、R则收到关于同条路由:一从OSPF学到的OEAD=二从R送来的DEXAD=三是自己重发布的DEXAD=。由于从R学到的同条路由R不会再次将它发回去。同条路由从不同路由协议学到则R的路由表会基于以下事实:比较比较比较比较ADADADAD小小小小的的的的ADADADAD放入路由表中放入路由表中放入路由表中放入路由表中于是从OSPF学到的路由进入路由表注意本题核心:在R上同时从两个协议收到这一条路由则比较AD谁的AD小就将放入路由表其中R收到O和DEX、R学到路由方向为:>R>R>R,那么Rping的数据包为:R>R>R>。二二二二回包回包回包回包>>>>R:R:R:R:要回包到R首先也要学到R的路由将发生下列事件:、R将R路由重发布到OSPF中、R将R路由重发布到OSPF中、R学到两个方向的同条路由如果都是OE的话cost=比较不出来改成OE才能反映真实的开销有利于选路如果OE就要改metric、学到R的路由方向为:R>R>R>R>数据包为:>R>R>R>R。bbshhcom:http:bbshhcom:http:bookhhcom做完后扩展ping测试(traceroute也可)。实验拓扑:因为人家前面解答已经很专业了所以我只给出最后从Rping的结果:本题目变形:就是在RR的线路可能考试的时候给的不是串口而是以太网口不是串口而是以太网口不是串口而是以太网口不是串口而是以太网口R到R形成次优路径此为双点双向重发布的变体结合需求难度稍大。bbshhcom:http:bbshhcom:http:bookhhcom给拓扑:注意:考试的时候应该可以看到题干上有句thethethethegreatestgreatestgreatestgreatestbandwidthbandwidthbandwidthbandwidth这些字眼那么基本就是要加distancedistancedistancedistance另外记得一定要showshowshowshow下接口!!!从thethethethegreatestgreatestgreatestgreatestbandwidthbandwidthbandwidthbandwidth知道R到的往返最低开销是:<>R<>R<>R<>R因为上面已经分析过了所以就在R上修改某种IGP的AD即可。R(configrouter)#R(configrouter)#R(configrouter)#R(configrouter)#distancedistancedistancedistanceeigrpeigrpeigrpeigrp如果RRRRRRRR是以太网的话就要加上这条命令把从RRRR发过来的路由ADADADAD改为小于OSPFOSPFOSPFOSPF则EIGRPEIGRPEIGRPEIGRP路由会进入RRRR路由表中。PolicyBasedRoutingSimQuestionQuestionQuestionQuestionCompanyAcanhastwolinkswhichcantakeittotheInternetThecompanypolicydemandsthatyouusewebtraffictobeforwardedonlytoFrameRelaylinkifavailableandothertrafficcangothroughanylinksNostaticordefaultroutingisallowedbbshhcom:http:bbshhcom:http:bookhhcomAnswerAnswerAnswerAnswerandandandandExplanation:Explanation:Explanation:Explanation:Notice:Notice:Notice:Notice:TheTheTheTheansweransweransweranswerandandandandexplanationexplanationexplanationexplanationbelowbelowbelowbelowarearearearefromfromfromfromPeterPanPeterPanPeterPanPeterPanandHelperHelperHelperHelperPleasesaythanktothem!AlltheHTTPtrafficfromtheEIGRPNetworkshouldgothroughFrameRelaylinkifavailableandalltheothertrafficshouldgothrougheitherlinkTheonlyrouteryouareabletoadministrateistheBorderRouter,fromtheEIGRPNetworkyoumayonlysendHTTPtrafficAstheotherpeoplementioned,actuallyitisnotaBGPlabYouarenotabletoexecutethecommand“routerbgp″))))AccessAccessAccessAccesslistlistlistlistthatthatthatthatcatchescatchescatchescatchesthethethetheHTTPHTTPHTTPHTTPtraffic:traffic:traffic:traffic:BorderRouter#BorderRouter#BorderRouter#BorderRouter#accesslistaccesslistaccesslistaccesslistpermitpermitpermitpermittcptcptcptcpanyanyanyanyanyanyanyanyeqeqeqeqwwwwwwwwwwwwNotethattheserverwasnotdirectlyconnectedtotheBorderRouterTherewerealotofEIGRProutesonitIntherealexamyoudonotknowtheexactIPaddressoftheserverintheEIGRPnetworksowehavetousethesourceas“any”tocatchallthesourceaddresses))))RouteRouteRouteRoutemapmapmapmapthatthatthatthatsetssetssetssetsthethethethenextnextnextnexthophophophopaddressaddressaddressaddresstotototobebebebeISPISPISPISPandandandandpermitspermitspermitspermitsthethethetherestrestrestrestofofofofthethethethetraffic:traffic:traffic:traffic:BorderRouter(config)#BorderRouter(config)#BorderRouter(config)#BorderRouter(config)#routemaproutemaproutemaproutemappbrpbrpbrpbrpermitpermitpermitpermitBorderRouter(configroutemap)#BorderRouter(configroutemap)#BorderRouter(configroutemap)#BorderRouter(configroutemap)#matchmatchmatchmatchipipipipaddressaddressaddressaddressbbshhcom:http:bbshhcom:http:bookhhcomBorderRouter(configroutemap)#BorderRouter(configroutemap)#BorderRouter(configroutemap)#BorderRouter(configroutemap)#setsetsetsetipipipipnexthopnexthopnexthopnexthopBorderRouter(configroutemap)#BorderRouter(configroutemap)#BorderRouter(configroutemap)#BorderRouter(configroutemap)#exitexitexitexitBorderRouter(config)#BorderRouter(config)#BorderRouter(config)#BorderRouter(config)#routemaproutemaproutemaproutemappbrpbrpbrpbrpermitpermitpermitpermit(Notice:theroutemaproutemaproutemaproutemappbrpbrpbrpbrpermitpermitpermitpermitlineallowsothertrafficthanHTTPtoberoutedOtherwise,othertrafficwillbedropped)))))ApplyApplyApplyApplythethethetheroutemaproutemaproutemaproutemapononononthethethetheinterfaceinterfaceinterfaceinterfacetotototothethethetheserverserverserverserverininininthethethetheEIGRPEIGRPEIGRPEIGRPNetwork:Network:Network:Network:BorderRouter(configroutemap)#BorderRouter(configroutemap)#BorderRouter(configroutemap)#BorderRouter(configroutemap)#exitexitexitexitBorderRouter(config)#BorderRouter(config)#BorderRouter(config)#BorderRouter(config)#intintintintfafafafaBorderRouter(configif)#BorderRouter(configif)#BorderRouter(configif)#BorderRouter(configif)#ipipipippolicypolicypolicypolicyroutemaproutemaproutemaproutemappbrpbrpbrpbrBorderRouter(configif)#BorderRouter(configif)#BorderRouter(configif)#BorderRouter(configif)#exitexitexitexitBorderRouter(config)#BorderRouter(config)#BorderRouter(config)#BorderRouter(config)#exitexitexitexit)Thereisa“HostforTesting”,clickonthishosttoopenaboxinwhichthereisabuttonnamed“GenerateHTTPtraffic”ClickonthisbuttontogeneratesomepacketsforHTTPtrafficJumpbacktotheBorderRouterandtypethecommand“showroutemap”BorderRouter#BorderRouter#BorderRouter#BorderRouter#showshowshowshowroutemaproutemaproutemaproutemapIntheoutputyouwillseetheline“Policyroutingmatches:packets…”Itmeansthattheroutemapweconfiguredisworkingproperly实验拓扑:其中winXPclient用虚拟机www流量用IE浏览器产生R配置如下:accesslistpermittcpanyanyeqwww!routemappbrpermitmatchipaddresssetipnexthop!bbshhcom:http:bbshhcom:http:bookhhcomroutemappbrpermit!interfaceFastEthernetipaddressippolicyroutemappbrduplexautospeedauto根据答案要求:)Thereisa“HostforTesting”,clickonthishosttoopenaboxinwhichthereisabuttonnamed“GenerateHTTPtraffic”ClickonthisbuttontogeneratesomepacketsforHTTPtrafficJumpbacktotheBorderRouterandtypethecommand“showroutemap”BorderRouter#showroutemapIntheoutputyouwillseetheline“Policyroutingmatches:packets…”Itmeansthattheroutemapweconfiguredisworkingproperly做完这一步到winXPclient上开网页产生www流量后再回到R上“showroutemap”:意思下吧只要看到流量就OK。IPvIPvIPvIPvOSPFOSPFOSPFOSPFVirtualVirtualVirtualVirtualLinkLinkLinkLinkSimSimSimSimQuestionQuestionQuestionQuestionAcmeisasmallexportcompanythathasanexistingenterprisenetworkthatisrunningIPvOSPFvCurrentlyOSPFisconfiguredonallroutersHowever,R′sloopbackaddress(FEC::)cannotbeseeninR′sIPvroutingtableYouaretaskedwithidentifyingthecauseofthisfaultandimplementingtheneededcorrectiveactionsthatusesOSPFfeaturesanddoesnochangethecurrentareaassignmentsYouwillknowthatyouhavecorrectedthefaultwhenR′sloopbackaddress(FEC::)canbeseenintheroutingtableofRbbshhcom:http:bbshhcom:http:bookhhcomAnswerAnswerAnswerAnswerandandandandExplanation:Explanation:Explanation:Explanation:Totroubleshoottheproblem,firstissuetheshowshowshowshowrunningconfigrunningconfigrunningconfigrunningconfigonallofroutersPaymoreattentiontotheoutputsofroutersRandRTheoutputofthe“showrunningconfig”commandofR:Theoutputofthe“showrunningconfig”commandofR:<outputomitted>!IpvrouterospfRouteridLogadjacencychanges!<outputomitted><outputomitted>!IpvrouterospfRouteridLogadjacencychangesAreavirtuallink!<outputomitted>bbshhcom:http:bbshhcom:http:bookhhcomWeknewthatallareasinanOpenShortestPathFirst(OSPF)autonomoussystemmustbephysicallyconnectedtothebackbonearea(Area)Insomecases,wherethisisnotpossible,wecanuseavirtuallinktoconnecttothebackbonethroughanonbackboneareaTheareathroughwhichyouconfigurethevirtuallinkisknownasatransitareaInthiscase,theareawillbecomethetransitareaTherefore,routersRandRmustbeconfiguredwiththeareaareaareaareavirtuallinkvirtuallinkvirtuallinkvirtuallinkcommandConfigurevirtuallinkonR(fromthefirstoutputabove,welearnedthattheOSPFprocessIDofRis):R>R>R>R>enableenableenableenableR#R#R#R#configureconfigureconfigureconfigureterminalterminalterminalterminalR(config)#R(config)#R(config)#R(config)#ipvipvipvipvrouterrouterrouterrouterospfospfospfospfR(configrtr)#R(configrtr)#R(configrtr)#R(configrtr)#areaareaareaareavirtuallinkvirtuallinkvirtuallinkvirtuallink(Noticethatwehavetouseneighborrouterid,notR′srouterid)ConfigurevirtuallinkonR(fromthesecondoutputabove,welearnedthattheOSPFprocessIDofRisandwehavetodisablethewrongconfigurationof“areavirtuallink″):R>R>R>R>enableenableenableenableR#R#R#R#configureconfigureconfigureconfigureterminalterminalterminalterminalR(config)#R(config)#R(config)#R(config)#ipvipvipvipvrouterrouterrouterrouterospfospfospfospfR(configrtr)#R(configrtr)#R(configrtr)#R(configrtr)#nonononoareaareaareaareavirtuallinkvirtuallinkvirtuallinkvirtuallinkR(configrtr)#R(configrtr)#R(configrtr)#R(configrtr)#areaareaareaareavirtuallinkvirtuallinkvirtuallinkvirtuallinkWeshouldchecktheconfigurationonR:R>R>R>R>enableenableenableenableR#R#R#R#showshowshowshowrunningconfigrunningconfigrunningconfigrunningconfigYouwillseeawronglyconfiguredvirtuallinkcommandTogetfullmarkwehavetodisablebbshhcom:http:bbshhcom:http:bookhhcomthiscommand:R#R#R#R#configureconfigureconfigureconfigureterminalterminalterminalterminalR(config)#R(config)#R(config)#R(config)#ipvipvipvipvrouterrouterrouterrouterospfospfospfospfR(configrtr)#R(configrtr)#R(configrtr)#R(configrtr)#nonononoareaareaareaareavirtuallinkvirtuallinkvirtuallinkvirtuallinkAfterfinishingtheconfigurationdon’tforgettopingbetweenRandRtomakesuretheyworkwell!NowalltheconfigurationwasdoneItisweirdthatwecan’tpingtheIPvloopbackinterfaceofR(withthepingorpingipvcommand)butwecancheckbyusingthecommandshowshowshowshowipvipvipvipvrouterouterouterouteonRThecopyingcopyingcopyingcopyingrunningconfigrunningconfigrunningconfigrunningconfigstartupconfigstartupconfigstartupconfigstartupconfigcommandwillnotworkbutdon’tworry,justskipitNotice:Ifyouissuethecommand“showrunningconfig”onR,youwillseethesetwolines:passiveinterfacepassiveinterfacepassiveinterfacepassiveinterfacedefaultdefaultdefaultdefaultnonononopassiveinterfacepassiveinterfacepassiveinterfacepassiveinterfacefafafafa(faistheinterfaceconnectingwithR)ThesetwolinesmakealltheinterfacesofRbecomepassiveinterfacesexceptinterfacefaTheyarecorrectlyconfiguredsodon’ttrytodisablethem该题有两个陷阱Notice:Ifyouissuethecommand“showrunningconfig”onR,youwillseethesetwolines:passiveinterfacedefaultnopassiveinterfacefa(faistheinterfaceconnectingwithR)这个配置没有问题不要在这里纠结第二个是virtuallink配置错误更正即可。最后实现R和R的loopback互相通信:bbshhcom:http:bbshhcom:http:bookhhcomOK实现题目效果。EIGRPEIGRPEIGRPEIGRPStubStubStubStubSimSimSimSimQuestionQuestionQuestionQuestionByincreasingthefirstdistantoffice,JSmanufactureshasextendedtheirbusinessTheyconfiguredtheremoteofficerouter(R)fromwhichtheycanreachallCorporatesubnetsInordertoraisenetworkstablenessandlowerthememoryusageandbroadbandutilizationtoR,JSmanufacturesmakesuseofroutesummarizationtogetherwiththeEIGRPStubRoutingfeatureAnothernetworkengineerisresponsiblefortheimplementingofthissolutionHowever,intheprocessofconfiguringEIGRPstubroutingconnectivitywiththeremotenetworkdevicesoffofR

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CCNP.642-902.V200题库(2013.2.20)实验题

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