CCIE实验考试经典题库

CCIE实验考试经典题库CCIE实验考试经典题库CCIE实验考试经典题库资料仅供参考文件编号：2022年4月CCIE实验考试经典题库版本号：A修改号：1页次：1.0审核：批准:发布日期：CCIE实验考试经典题库1-

DayFormatVersion3.002-

PolicyRoutingFramerelayOSPFLab#1NetworkLearning,Inc.R&SCCIEPracticeLab1Version2.001-dayVersionAttheendofthislabverifyconnectivitytoallports.Youshouldbeabletopingeveryinterfaceformanyrouter.(don’tworryaboutbeingabletopingalocalframe-relayinterface.Pleasedisregardthisstatementifyouareaskedtofilterpackets,routersorotherspecifictasks.)

1.

InitialConfiguration–5pts(30minutes)a.

Usethepre-configurationfilestoapplyproperIPaddressestotherouterinterfaces.AddIPaddressesasneededasshownonthenetworkdiagram.b.

ConfigurerouterR7asaframe-relayswitch.RefertothediagramforinterfaceconnectionstootherroutersconnectedtorouterR7.c.

ConnectroutersR1,R2,R3,andR5overtheframe-relaycloud.ConfigurerouterR1’sS0interfaceasasub-interface.ConfigureR2,R3,andR5withoutusingsub-interfaces.Useonlyoneframe-relayPVConroutersR2,R3,andR5.TherecommendedDLCInumbers102,201,103,301,105,and501areindicatedonthelabdiagram.d.

RoutersR1,R2,R3,andR5shouldsharenetwork10.10.x.x

ontheirframe-relayinterfaces.e.

RouterR1shouldhavenetwork10.1.x.xwithan8-bitsubnetmaskonitsEthernetinterface(Themaskshouldbe)f.

MakesurealltheEthernetinterfacesareintheirownbroadcastdomainifyouareusinganEthernetswitchforyourEthernetconnections.2.

OSPFConfiguration–25pts(2hours30minutes)a.

configureOSPFarea0ontheframe-relayinterfacesbetweenR1,R2,R3,andR5.b.

ConfigurerouterR1’sinterfaceEthernet0forOSPFarea1c.

ConfigurerouterR2’sinterfaceE0forOSPFarea10d.

ConfigurerouterR3’sinterfaceS1andallofrouterR4’sinterfaceforOSPFarea3.e.

ConfigurerouterR5’sinterfaceE0forOSPFarea4.f.

CreatetwoloopbackinterfaceonR4andputbothoftheassociatedsubnetsontheseinterfacesinOSPFarea44.g.

Summarizethe(2)loopbackinterfaceyoujustcreatedonrouterR4sotheyappearasoneroutetotherestoftheOSPFroutersinyournetwork..h.

Hereisthetrickypart.Youcan’tusethecommandipospfnetworkxxxxanywhereinyourrouterconfigurations.i.

RedistributethedefaultrouteonrouterR2astype-1withametricof100.Thisrouteisalreadypartoftheinitialconfigurationsweprovidedforyou.j.

Also,oneoftheproblemsinthislabcanbesolvedwithmultipleframemapipstatements,butthatisnotthesolutionwewantyoutouse,Solvetheproblemwithrouting,notlayer3tolayer2mappingviaadditionalframemapstatements!!!(Yes,thisisatrickyissue)

Ypareyourconfigurationstotheonesweprovided.Oftenthereismorethanonecompleteatasksoyourconfigurationsmaybedifferentthanours.Ifyourconfigurationaredifferentthanoursmakesureyouunderstandhowtocompletethelabwithourconfigurationstoo.Lab2

Attheendofthislabverifyconnectivitytoallports.Youshouldbeabletopingeveryinterfacefromandrouter.(Don’tworryaboutbeingabletopingalocalframe-relayinterface.Pleasedisregardthisstatementifyouareaskedtofilterpackets.Routesorotherspecifictasks.)

1.

InitialConfiguration–5pts(30mins)a.

Usethepre-configurationfilestoapplyproperIPaddressestotherouterinterfaces.AddIPaddressesasneededasshownonthenetworkdiagram.YoumayhavetoaddadditionalIPaddressestocompletesometasks.b.

ConnectroutersR1,R2,R3,andR5overtheframe-relaycloud.ConfigurerouterR1usingsub-interfaces.ConfigureroutersR2,R3,andR5withoutusingsub-interface.c.

Useonlyoneframe-relayPVConroutersR2,R3,andR5,TherecommendedDLCInumbers102,201,103,301,105,and501fortheframe-relayPVC’sareindicatedonthenetworkdiagram.d.

RoutersR1,R3,andR5shouldsharenetwork10.10.x.xontheirframe-relayinterfacese.

RoutersR1andR2shouldsharenetwork10.20.x.xontheirframe-relayinterfaces.f.

RouterR1shouldhavenetwork10.1.x.xwithan8-bitsubnetmaskonitsEthernetinterface(Themaskshouldbe)g.

RouterR2shouldhavenetworkwitha24-bitmaskonitsEthernetinterface.h.

RouterR3shouldhavenetwork10.3.x.xwithan8-bitsubnetmaskonitstoken-ringinterface(Themaskshouldbe)

2.

OSPFconfiguration–30pts(2Hours30minutes)a.

configureOSPFarea0ontheframe-relayinterfacesbetweenroutersR1,R3andRouterR5.b.

PlacerouterR1’sEthernetinOSPFarea1.placerouterR5’sinterfaceE0inOSPFarea0.c.

Setupadefaultstaticroute(defaultgateway)fromR3toR4.RedistributethisdefaultstaticrouteintoOSPFwithametric-typeof1andametricof500.d.

ConfigurerouterR3’sserial1interfaceas/24androuterR4’sserial0interfaceas/24.e.

ConfigurerouterR4’sE0interfaceas/24.f.

ConfigureadefaultgatewayonrouterR4torouteallpacketsforwhichithasnoroutestorouterR3.g.

ConfiguretwoloopbackinterfacesonrouterR3withnetworksthatcouldhaveatmost254hostsandputthembothinthesameOSPFarea,butdifferentfromOSPFarea0.Summarize

thisrouteintoOSPFsothatthetwosubnetsappearasoneroute.h.

ConfigurerouterR2forEIGRPandputallinterfaceintheroutingprocess.i.

ConfigurerouterR1withEIGRPandredistributewithOSPF.Setthemetrictypetotype-1whenyouredistributefromEIGRPtoOSPF.Also,redistributeOSPFintoEIGRP.j.

ConfigurerouterR1sothatitonlylistenstoEIGRPupdatesonE0andS0.2.k.

ConfigurerouterR6forOSPFwithadifferentprocessIDthanusedthusfar.DonotconfigureR6’sE0forOSPF.l.

ConfigurerouterR8tobeinthesameOSPFareaasrouterR6.putrouterR8’sinterfaceE0&Lo0intotheOSPFroutingprocess.ConfigurerouterR6sothatitsS1interfacespeediscorrectlyreflectedintheOSPFmetricswithoutusingthe“ipospfcostxxx”command.m.

ConfigureOSPFmessage-digestauthenticationbetweenroutersR6&R8.n.

ChangetheOSPFhellointervalbetweenroutersR6&R8to45seconds.o.

ConfigurerouterR8suingthe“ipospfcost”commandsuchthatthespeedofthelinkforinterfaceS0iscorrectlyreflectedintheOSPFmetrics.p.

ChangetheOSPFtransmitintervaldelayto10secondsbetweenroutesR6&R8.q.

AddadefaultroutetorouterR2thatpointsto.configureonestaticrouteonrouterR2sothatfullconnectivitytoR4’sinterfaceE0isavailable.YouwillnoticethatthedefaultgatewayofrouterR2hasaloweradministrativecostthantheonelearnedviarouterR1.asaresult,theotherdefaultroutenevermakesitintheroutingtableforrouterR2.r.

YouwillnoticethatR2can’tpingtheserialinterfacesbetweenroutersR3&R4.fixthisproblembyonlymakingchangestorouterR3withoutstaticroutes.3.

BGPconfiguration

-15pts(1hour)a.

ConfigurerouterR4inBGPautonomoussystem1.b.

Createastaticroutetonull0routerR4andredistributeintoBGP.c.

CreatealoopbackinterfaceonR4andadditsnetworktoBGPd.

WhenaddingthefirstloopbacktoBGPuseaclassAaddresswitha24-bitmask.ThenetworkthatwasaddedtoBGPfromthefirstloopbackaddressshouldappearintheroutingtableofotherroutersas“B

…”e.

CreateanotherloopbackonrouterR4withaclassAaddressandputthisnetworkintoRIPandredistributeRIPintoBGP.f.

ConfigurerouterR3inBGPautonomoussystem1anduseinterfaceloopback0astheupdatesource.g.

ConfigureroutersR1,R2,andR5inBGPautonomoussystem2,

onlyuseoneneighborx.x.x.xremote-as2commandonroutersR2,R3.&R5forautonomoussystem2.h.

PlaceroutersR6andR8inBGPautonomoussystem3.i.

ConfigureBGPauthenticationbetweenrouterR6&R8.j.

ConfigurealoopbackinterfaceonrouterR8andenableRIPforthisnetwork.RedistributethisRIPnetworkintoOSPF.k.

RedistributetheOSPFroutingprocessthatcontainsroutersR6andR8intoBGP.l.

YouarenotallowedtoaddanystaticroutestorouterR8duringthisexercise.m.

ConfigurerouterR6suchthatallBGProuteslearnedfromrouterR5havealocalpreferenceof300.n.

FilteronrouterR5suchthattheBGProutetonull0definedonrouterR4isn’tseenonroutersR6&R8.o.

HinttheobjectofthisBGPsectionistoprovideend-to-endconnectivitybetweenallroutersandinterfaces.InthisexerciseyouarenotallowedtoconfigureIGPortwo-waystaticrouteconnectivitybetweenroutersR5&R6,BGPshouldbeprovidingthenecessaryroutinginformation.YouareallowedtosetupadefaultrouteonrouterR6topointtorouterR5.

Nowthatyouhavecompletedlab2check.,theroutingtablesonallrouters.DotheymakesensePingallinterfacesfromallrouters.CanyoupingeverywhereDotheappropriateroutersseethestaticroutetonull0onR4viaBGPGotoeveryrouterandpingeveryinterface.Ifyoucan’tpingeverythingyouarenotdoneyes.Youhavecompletedlab2.Compareyourconfigurationtoonesweprovided.Oftenthereismorethanonetocompleteatasksoyourconfigurationsmaybedifferentthanours.IfyourconfigurationsaredifferentthanoursmakesureyouunderstandhowtocompletethelabwithourconfigurationstooLab3

Attheendofthislabverifyconnectivitytoallports.Youshouldbeabletopingeveryinterfacefromanyrouter.(Don’tworryaboutbeingabletopingalocalframe-relayinterface.Pleasedisregardthisstatementifyouareaskedtofilterpackets.Routesorotherspecifictasks.)

1.

Initialconfiguration

-5pts(30mins)a.

Usethepre-configurationfilestoapplyproperIPaddressestotherouterinterfaces.AddIPaddressesasneededasshownonthenetworkdiagram.YoumayhavetoaddadditionalIPaddressestocompletesometasks.b.

Configurelab3networkusingnetwork137.20.x.xc.

CreatealoopbackinterfaceonrouterR2with/24.d.

ConnectroutersR1,R2,R3,andR5overframe-relaycloud.e.

ConfigurerouterR1usingsub-interfaces.f.

ConfigurerouterR2withoutusingsub-interfacesorframe-relaymapcommands.g.

PutroutersR1&R2frame-relayinterfacesononesubnetandroutersR1,R3,andR5onadifferentsubnet.

2.

OSPF&OtherIPRoutingConfiguration

-35pts(2h)a.

ConfigureOSPFwiththeframe-relaycloudinOSPFarea0b.

ConfiguretheR3-R4serialconnectiontobeinarea1.c.

Setthering-speedonrouterR3to16Mbps.d.

ConfiguretheloopbackinterfaceonrouterR2inadifferentOSPFarea.e.

ConfiguretheLANinterfacesonroutersR1,R2,andR3tobeindifferentOSPFareas.f.

ConfiguretwoloopbacksonrouterR3usingsubnetsthatwillcontainatmost30hostIPaddresses.g.

ConfiguretwoloopbackinterfacesonrouterR1usingsubnetsthatwillcontainatmost14hostIPaddresses.h.

SummarizethetwoloopbackinterfacesonroutersR1andR3suchthatrouterR2onlyseesoneroutefromeach.i.

ConfiguretheEthernetinterfaceE0onrouterR4tobeinOSPFarea40.j.

ConfiguretheR5,R6,andR8Ethernet0interfacetouseEIGRP.k.

ConfigureR8’sinterfaceloop5as/24andaddittoRIPl.

RedistributeroutesbetweenallprotocolssuchthatrouterR1canpinganyinterface.m.

Configure2loopbacksinterfacesonrouterR8with/24&/24.addtheretoRIPandredistributeRIPtoEIGRP.Summarizesuchthatallroutersonlyseeoneroutetotheloopbackinterfaces.Testconnectivitytoloopbackinterfaceviaping.n.

FiltersuchthatrouterR6canpingtheloopbacksonrouterR1,butnottheEthernetinterfaceonrouterR1.theroutefortheEthernetonrouterR1shouldstillbevisibleandallothertrafficsuchastelnetshouldstillpassunfiltered.o.

FilteronrouterR5suchthatroutersR1R2,R3,andR4,don’tseetheroutetorouterR8’sinterfaceloopback5.p.

CreatethreeloopbackinterfacesonrouterR8anduse/24forloopback2,q.

/24forloopback3,andforloopback4.nowsummarizethethreeloopbacknetworksintooneroute.WhendonerouterR1shouldseeonlyonerouteforthesethreeloopbackinterfacesanashouldbeabletopingallthreeofthem.Hint,theroutemaynotlooklikewhatyouthink.

3.

NTP&Access-list&OtherTasks

-15pts(30mins)a.

configureNTPbetweenroutersR2&R3.makeR2thetimesource.SetthecorrecttimeanddateonrouteronrouterR2.Setthetime-zoneonroutersR2&R3,VerifythatrouterR3hassyncedwithrouterR2viaNTP.b.

ConfigurequeuingonrouterR3’sS0interfacesuchthattelnet,IP,IPX,andeverythingelseuse25%ofthebandwidtheach.Configurethequeuingsuchthatnoneofthetrafficdefinedat25%aboveusesmorethan1000bytespertimeslice.Youareallowedtoexceed1000bytespertimesliceonlyifthereispartofaremainingindividualpacketthatneedstobeemptiedfromthequeue.c.

Configuretheframe-relayinterfaceonrouterR2’sinterfaceSosuchthatIPisdiscardeligibleontheframe.d.

Createthefollowing6staticroutesonrouterR6;suingtheCiscoIOScommandIProute192.168.x.0null0.usethenumber1,2,3,4,5and6forthevariableX.redistributethestaticroutessuchthattheyareseenbyalltheotherrouters.NowfilteronrouterR5usinganymethodthatuseanaccesslistsothatonlytheevenroutes(i.e.X=2,4,and6)areseenpastrouterR5towardstheOSPFnetwork.Youraccess-listcanonlyhavetwolinesinit,notsevenforthisexercise.Allthe192.168.x.0routesmuststillbeseeninrouterR5’sroutingtable.

4.

IPXConfiguration–20pts(1h)a.

Configureallinterface(includingloopbacks)forIPXb.

ConfigureIPXEIGRPontheNBMAframe-relaynetworkc.

ConfigureIPXRIP/SAPeverywhereelse.d.

ConfiguretwostaticSAPsonrouterR3.FilteronrouterR5suchthatroutersR6andR8onlyseeoneoftheSAPs.e.

DisableIPXonthebetweenroutersR3&R4allroutesshouldstillbeseenbyallroutersrunningIPX.f.

ChangethefrequencyoftheRIPupdatesacrosstheR3-R4serialconnectiontoonceevery2minutes.g.

ConfigurerouterR1’sEthernetwithIPX802.2and802.3rawframetypes.h.

ConfigureroutersR3andR4topassIPXNETBIOStype-20broadcastsbetweentheirLANinterfaces.

5.

DLSWConfiguration–10pts(45mins)a.

ConfigureDLSwbetweenrouterR3’sinterfacetoken-ring0androuterR4’sinterfaceEthernet0.b.

PlacerouterR2’sinterfaceEthernet0intotheDLSwnetwork.MakesurethereisconnectivitybetweenallLANinterfaces.c.

ConfigureafilterthatblocksNETBIOSpacketswithdestinationname‘CCIERING1”fromleavingrouterR3’sinterfaceTo0.d.

SetupafilterthatwouldpermitonlySNAtrafficbetweenroutersR3&R4.

6.

BGPConfiguration–15pts(1h)a.

ConfigureBGPonrouterR4usingASnumber1.configureBGPonroutersR1,R2,R3andR5usingASnumber2.YoucanonlyuseoneneighborX.X..X.Xremote-as2commandonroutersR2andR5.b.

Configuretwostaticroutesto/24and/24usingthecommandiproutenull0onrouterR4,RedistributethesecondrouteintoBGPusingtheroute-mapcommand.c.

MakesurethatrouterR5canseetheroute.d.

SetuprouterR8withBGPinASnumber3.onrouterR8usetheloopbackinterfaceLo0asthesourceforitsBGPconnectiontoAS2.makesurerouterR8canseethespecificroute,andnottheaggregate

Ypareyourconfigurationstotheonesweprovided.Oftentheresimorethanonetocompleteatasksoyourconfigurationmaybedifferentthanours.Ifyourconfigurationaredifferentthanoursmakesureyouunderstandhowtocompletethelabwithourconfigurationstoo.LAB4

Attheendofthislabverifyconnectivitytoallports.Youshouldbeabletopingeveryinterfacefromanyrouter.(Don’tworryaboutbeingabletopingalocalframe-relayinterface.Pleasedisregardthisstatementifyouareaskedtofilterpackets.Routesorotherspecifictasks.)

1.

Initialconfiguration

-10pts(30mins)a.

Usethepre-configurationfilestoapplyproperIPaddressestotherouterinterfaces.AddIPaddressesasneededasshownonthenetworkdiagram.YoumayhavetoaddadditionalIPaddressestocompletesometasks.b.

ConnectroutersR1,R2,R3,andR5overtheframe-relay.ConfigurerouterR1usingsub-interfaces.ConfigureroutersR2.R3,andR5withoutusingsub-interfaces.c.

Useonlyframe-relayPVConroutersR2,R3andR5.TherecommendedDLCInumbers05,and501areindicatedonthenetworkdiagram.d.

RoutersR1,R3andR5shouldsharenetwork10.10.x.xontheirframe-relayinterfaces.e.

RoutersR1andR2shouldsharenetwork10.20.x.xontheirframe-relayinterfaces.f.

RouterR1shouldhavenetwork10.1.x.xwitha9-bitsubnetmaskonitsEthernetinterface.(themaskshouldbe)suesubnet-zerohere.g.

RouterR2shouldhavenetworkwitha24-bitmaskonitsEthernetinterface.h.

RouterR3shouldhavenetwork10.3.x.xwithan8-bitsubnetmaskonitstoken-ringinterface.(themaskshouldbe)i.

Usenetwork11.1.x.xbetweenroutersR5&R6.

2.

OSPF&OtherIProutingconfiguration–35pts(1hous30mins)a.

ConfigureOSPFarea0ontheframe-relayinterfacesbetweenroutersR1,R3,andR5.b.

PlacerouterR1’sEthernetinOSPFarea1.PlacerouterR3’sinterfaceTo0inOSPFarea2.c.

PlacerouterR3’sinterfaceserial0,andallofrouterR4inOSPFarea3.makeOSPFarea3atotally-stubbyarea.d.

PlaceR5andR6EthernetinterfaceinOSPFarea4.MakethisOSPFareaaNSSA(not-so-stubby-area)Makethedefaultcost20.e.

ConfigurerouterR6’sinterfaceserial0androuterR8’sinterfacesS0,E0,andloop0forEIGRP.f.

PlacerouterR2’sinterfaceserial0androuterR1’sS0.1inOSPFarea5.g.

Redistributeallroutessothatyoucanseeallroutesandpingfromeverywhere.h.

SummarizetheroutersforrouterR8’sinterfaceE0,Loop0,andS0thatwereredistributedintoOSPFbyrouterR6onrouterR5sothatallofrouterR8’snetworksappearasoneroutetotherestoftheOSPFroutersexceptR6.i.

WhenyouredistributeEIGRPintoOSPFmaketheseroutesappearastype-1externalroutes.j.

ConfigurerouterR2suchthatitpropagatesadefaultroutetheotherOSPFrouters.k.

CreateasecondloopbackinterfaceonrouterR2withanaddressof/24.makesureyou

canpingthesecondloopbackinterfaceonrouterR2fromothertherouters.l.

CreatetwoloopbacksonrouterR3withnetworksthatcouldcontainatmost30hosts.PlacetheloopbacksonrouterR3inoneareaandsummarizesuchthatonerouteappearsforbothloopacks.m.

PlacetheEthernetinterfaceonrouterR2inarea10.n.

ConfiguresimplepasswordauthenticationinOSPFarea4.o.

UsetheipospfprioritycommandonrouterR5tomakeitbecometheDRforOSPFarea4.p.

ChangethecostonrouterR5’sinterfaceE0usinganIPOSPFcommandtomakeitappearas100MbpsasitrelatestoOSPFmetrics.q.

ChangethecostonR6’sE0withoutusinganIPOSPFcommandtomakeitappearas100MbpsasitrelatestoOSPFmetics.

3.

BGPConfiguration–15pts(1h)a.

PlacerouterR4inBGPAS1androuterR3inBGPAS2.Createtwostaticroutestonull0usingaclassAaddresswitha24-bitmaskonR4andinjectintoBGPsuchthatrouterR3canseeit.UseloopbacksastheupdatesourceonbothroutersR3andR4.Createloopbackinterfaceasnecessary.b.

Filteroneofthestaticrouteswitharoute-mapstatementonrouterR4.c.

ConfigureBGPonrouterR4suchthatthesub-nettedclassArouteisseen.Forexample,theBGProuteonrouterR3couldbenot.d.

ConfigureasecondloopbackinterfaceonrouterR4at/24andenableRIPonthisrouterforthisnetwork.Injectthisrouteandthepreviousonewithametricof5.e.

ConfigurerouterR2,R1,andR5inBGPAS3.useonlyoneneighborX.X.X.Xremote-asxstatementonroutersR2andR5.f.

CreateastaticrouteonrouterR2(iproutenull0)injectthisrouteintoBGP.MakesuretheotherroutersrunningBGPcanseethisroute.g.

Alsomakesureallrouterscanping.

youhavecompletedlab4compareyourconfigurationstotheonesweprovided.Oftenthereismorethanonetocompleteatasksoyourconfigurationmaybedifferentthanours.IfyourconfigurationaredifferentthanoursmakesureyouunderstandhowtocompletethelabwithourconfigurationstooLab5

Attheendofthislabverifyconnectivitytoallports.Youshouldbeabletopingeveryinterfacefromanyrouter.(Don’tworryaboutbeingabletopingalocalframe-relayinterface.Pleasedisregardthisstatementifyouareaskedtofilterpackets.Routesorotherspecifictasks.)

1.

Initialconfiguration&OSPF-35pts(2h)a.

Usethepre-configurationfilestoapplyproperIPaddressestotherouterinterfaces.AddIPaddressesasneededasshownonthenetworkdiagram.YoumayhavetoaddadditionalIPaddressestocompletesometasks.b.

ConfigurerouterR2’sEthernetinterfaceswithIPaddress/24androuterR2’sdefaultrouteto.c.

Usea24-bitmaskunlesstoldtouseotherwise.d.

CreatealoopbackinterfaceonrouterR2with/24.e.

ConnectrouterR3,R4,R5,andR6overframe-relay.ConfigurerouterR5usingsub-interfaces.f.

ConnectroutersR3,R4,R5andR6overframe-relay.ConfigurerouterR5androuterR4onadifferentsubnet.g.

ConfigureOSPFonrouterR3’sinterfaceS1,routerR6’sinterfaceS1,androuterR5’ssub-interfaceS1.1forOSPFarea10,placeR5’sandR2’sEthernetinterfaceinOSPFarea0.h.

ConfiguretheconnectionbetweenrouterR5’sinterfaceS1.2androuterR4forIGRP.i.

ConfigurerouterR6’sEthernetE0asOSPFarea6.configurerouterR3’stoken-ringinterfaceTo0asOSPFarea3.configuretwoloopbackinterfacesonrouterR3withnetworksthatcontainatmost30hostsandputbothloopbacksinthesameareaasthetoken-ringinterface.SummarizetheloopbacksubnetsandrouterR3’sinterfaceTo0toappearasoneroutetoOSPF.j.

MakethedefaultrouteonR2appearinheroutingtableofalltheotherrouters.k.

ConfigureroutersR1,R2’sS1,androuterR8’sEthernetinterfaceE0forEIGRP.ConfigurerouterR8’sinterfaceTo0forRIP.l.

Redistributeallroutersbetweenallroutingprotocolssuchthatallroutesarevisibleinallroutersandeveryroutercanpingeachother’sIPinterfaces(eventheloopbackonR2)asshownonthelabdiagramlab5a.m.

MakesurethatallOSPFexternalroutesappearastype-1,verifyyourroutes.Aretheroutesappearinginthecorrectlyroutingprotocol?

n.

ConfigurerouterR5suchthattheonlyrouteonR6forthenetworkappearsexactlyasfollows;O[110/65]via,00:51:03,serial1.Hintpayattentiontotheunderlinedvalue65.o.

ConfigureroutersR3&R4toresolvednsnamesusingDNSservers1&2.

2.

OSPFDemandCircuit–15pts(1hour)a.

Usenetwork/24fortheISDNinterfacesonroutersR5&R6andassthemtoOSPF.ConfigureroutersR5&R6tousetheISDNinterfacesforrestoral[恢复].TheISDNlinkshouldonlycomeupwhenyouadministrativelyshutdowntheserial4interfaceonrouterR7,andthereisinterestingtraffictryingtogetbetweenroutersR5&R6(i.e.usepingastheinterestingtraffictotest.MakesureyoutestfromrouterR6andfromrouterR5.Seetherouterports/configurationintoonlineforthephone#’s,spids,andswitchtypeifyouareusingourremoteracks.ConfiguretheISDNlinksothatitwillshutdown45secondsafteraninboundoroutboundpingpacket.BothroutersshouldshavefullOSPFrouteswhentheframelinkisfunctionalornot.

YouarerequiredtouseOSPFdemand-circuitasyoursolutionhere,aftertheinitialISDNcalltosynchronizeOSPF,yourISDNinterfacesshouldstaydownunlessyoubreaktheframeconnectionbetweenR5andR6andthereisinterestingtraffic.

NowgotorouterR7andshutdowninterfaceS4,yourISDNconnectionshouldkickinandprovideabackuppathforrouterR6toreachtherestofthenetwork,butonlywhenthereisdatatosend.OSPFrouterupdatesshouldnotkeeptheISDNup.Pretend[假装]yourISDNlineischargedat$5perminuteanditcomesoutofyourcheck.

AtthispointwhenrouterR7’sinterfacesS4(yourframeconnection)isstilldown.RouterR5shouldhavethefollowingdisplaysfor:”showiproute”,“showipospfintbri0”,and“showdialer”

NoticethattheISDNconnectionisdownandrouterR5hasaroutingtablewithOSPFentriesusinginterfaceBRI0togettorouterR6’sEthernetnetwork,andissuppressingOSPFhellosfor1neighbor.AlsopayattentiontotheOSPFdeadtimeonR5’sBRI0interface.

OutputfromrouterR5

R5#showiprouteCodes:C-connected,S-staticI-IGRP,R-RIP,M-mobile,B-BGP,D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea,N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2,E1-OSPFexternaltype1,E2-OSPFexternaltype2E-EGP

i-IS-IS,L1-IS-ISlever-1,L2-IS-ISlevel-2,*-candidatedefault,U-per-userstaticroute,o-ODR

Gatewayoflastresortistonetwork

/24issubnetted,1subnetsC

isdirectlyconnected,Ethernet0

/16isvariablysubnetted,7subnets,2masksOIA

/24[110/65]via,00:09:03,serial1.1I

/24[100/8576]via,00:01:11,seria