Pob ntawv taug qab. Lab: Configuring floating static routes

Network topology

paub tab

1. Tsim ib txoj hauv kev zoo li qub
2. Deploying ib tug floating static txoj kev
3. Tshawb xyuas kev hloov mus rau txoj kev floating zoo li qub thaum txoj kev tseem ceeb ua tsis tiav

Cov lus qhia dav dav

Yog li, pib nrog, ob peb lo lus hais txog dab tsi yog qhov zoo li qub, thiab txawm tias txoj kev ntab. Tsis zoo li dynamic routing, static routing xav kom koj tus kheej tsim ib txoj hauv kev rau ib lub network tshwj xeeb. Ib txoj hauv kev zoo li qub yog siv los muab txoj hauv kev thaub qab mus rau lub hom phiaj network yog tias txoj kev tseem ceeb ua tsis tiav.

Siv cov piv txwv ntawm peb lub network, "Border Router" txog tam sim no tsuas muaj kev sib txuas ncaj qha mus rau ISP1, ISP2, LAN_1 thiab LAN_2 tes hauj lwm.

Tsim ib txoj hauv kev zoo li qub

Ua ntej peb tham txog txoj kev thaub qab, peb yuav tsum xub tsim txoj hauv kev tseem ceeb. Cia txoj kev tseem ceeb los ntawm ciam teb router mus dhau ISP1 mus rau Is Taws Nem, thiab txoj hauv kev los ntawm ISP2 yuav yog thaub qab. Txhawm rau ua qhov no, ntawm ciam teb router hauv hom kev teeb tsa thoob ntiaj teb, teeb tsa txoj hauv kev zoo li qub:

Edge_Router>en
Edge_Router#conf t
Edge_Router(config)#ip route 0.0.0.0 0.0.0.0 s0/0/0 

qhov twg:

• thawj 32 khoom ntawm xoom yog qhov chaw nyob network;
• qhov thib ob 32 khoom ntawm xoom yog lub npog ntsej muag network;
• s0/0/0 yog qhov tso zis interface ntawm ciam teb router uas txuas nrog ISP1 network.

Qhov kev nkag no hais tias yog cov pob ntawv tuaj txog ntawm ciam teb router los ntawm LAN_1 lossis LAN_2 tes hauj lwm muaj qhov chaw nyob network uas tsis nyob hauv lub rooj sib tham, lawv yuav raug xa mus los ntawm s0/0/0 interface.

Cia peb tshawb xyuas lub rooj sib tham ntawm ciam teb router thiab xa daim ntawv thov ping mus rau lub vev xaib server los ntawm PC-A lossis PC-B:

Peb pom tias qhov kev nkag mus tau zoo li qub tau ntxiv rau lub rooj sib tham (raws li pov thawj los ntawm S * nkag). Cia peb taug qab txoj hauv kev los ntawm PC-A lossis PC-B mus rau lub vev xaib server:

Thawj lub hop yog los ntawm PC-B mus rau ntug router lub zos IP chaw nyob ntawm 192.168.11.1. Qhov thib ob hop yog los ntawm ciam teb router mus rau 10.10.10.1 (ISP1). Nco ntsoov, yav tom ntej peb yuav sib piv cov kev hloov pauv.

Deploying ib tug floating static txoj kev

Yog li, txoj kev tseem ceeb zoo li qub tau tsim. Tom ntej no, peb tsim, qhov tseeb, ib txoj hauv kev zoo li qub los ntawm ISP2 network. Cov txheej txheem ntawm kev tsim ib txoj hauv kev zoo li qub yog tib yam li txoj hauv kev tsis tu ncua zoo li qub, tshwj tsis yog tias thawj qhov ntxiv qhia txog kev tswj hwm kev ncua deb. Kev khiav hauj lwm deb yog hais txog qhov kev cia siab ntawm txoj kev. Qhov tseeb yog tias qhov kev tswj xyuas kev ncua deb ntawm txoj kev zoo li qub yog sib npaug rau ib qho, uas txhais tau hais tias qhov tseem ceeb tshaj plaws ntawm cov txheej txheem dynamic routing, nyob rau hauv uas cov thawj coj nyob deb yog ntau zaus ntau dua, tshwj tsis yog rau cov kev hauv zos - lawv muaj nws sib npaug rau xoom. Raws li, thaum tsim ib txoj kev zoo li qub floating, koj yuav tsum qhia txog qhov kev tswj xyuas qhov deb ntau dua li ib qho, piv txwv li, 5. Yog li, txoj kev ntab yuav tsis muaj qhov tseem ceeb tshaj qhov tseem ceeb ntawm txoj kev zoo li qub, tab sis thaum lub sijhawm nws tsis muaj, txoj hauv kev tsis muaj. yuav suav hais tias yog lub ntsiab.

Lub syntax rau kev teeb tsa ib txoj hauv kev zoo li qub yog raws li hauv qab no:

Edge_Router(config)#ip route 0.0.0.0 0.0.0.0 s0/0/1 5

qhov twg:

• 5 - qhov no yog tus nqi ntawm kev tswj xyuas qhov deb;
• s0/0/1 yog qhov tso zis interface ntawm ntug router txuas nrog ISP2 network.

Kuv tsuas xav hais li ntawd xwb thaum txoj kev tseem ceeb nyob rau hauv kev ua haujlwm, txoj kev floating zoo li qub yuav tsis tshwm sim hauv cov lus qhia. Yuav kom ntseeg tau ntau dua, cia peb tso saib cov ntsiab lus ntawm lub rooj sib tham ntawm lub sijhawm thaum txoj kev tseem ceeb nyob hauv qhov zoo:

Koj tuaj yeem pom tias txoj hauv kev zoo li qub tseem ceeb nrog cov zis interface Serial0/0/0 tseem pom nyob rau hauv cov lus routing thiab tsis muaj lwm txoj hauv kev zoo li qub tau tshwm sim hauv cov lus routing.

Tshawb xyuas kev hloov mus rau txoj kev floating zoo li qub thaum txoj kev tseem ceeb ua tsis tiav

Thiab tam sim no qhov nthuav tshaj plaws: Cia peb simulate qhov tsis ua tiav ntawm txoj kev tseem ceeb. Qhov no tuaj yeem ua tau los ntawm kev cuam tshuam lub interface ntawm qib software, lossis tsuas yog tshem tawm kev sib txuas ntawm router thiab ISP1. Disable Serial0/0/0 interface ntawm txoj kev tseem ceeb:

Edge_Router>en
Edge_Router#conf t
Edge_Router(config)#int s0/0/0
Edge_Router(config-if)#shutdown

... thiab tam sim ntawd khiav mus saib lub rooj routing:

Nyob rau hauv daim duab saum toj no, koj tuaj yeem pom tias tom qab qhov tsis ua tiav ntawm txoj kev zoo li qub, cov zis interface Serial0/0/0 hloov mus rau Serial0/0/1. Hauv thawj kab peb tau khiav ua ntej, qhov kev dhia tom ntej los ntawm ciam teb router yog IP chaw nyob 10.10.10.1. Cia peb piv hops los ntawm rerouting thaum siv txoj kev fallback:

Kev hloov pauv ntawm ciam teb router mus rau lub vev xaib server tam sim no dhau ntawm IP chaw nyob 10.10.10.5 (ISP2).

Tau kawg, txoj kev zoo li qub tuaj yeem pom los ntawm kev nthuav tawm cov teeb tsa router tam sim no:

Edge_Router>en
Edge_Router#show run

Tau qhov twg los: www.hab.com