Okuxoxwa yi-IPv6CP nokuthi yini esadinga isiqalo
Ikheli le-link-local ku-PPP interface liyisinyathelo sokusetha, hhayi ukufinyelela kwe-IPv6. Ehlukanisa ukushintshana kwezimpawu neziqalo, imizila kanye nokuhlanganiswa kweklayenti.
I-IPv6 ikhuphuka ku-PPP interface, ikheli le-link-local liyavela, futhi ushintsho luthiwa luphelile. Ngemuva kwalokho akukho okudluliswayo, akukho kheli lomhlaba wonke, futhi ukuhlolwa okuya endaweni yomphakathi kuyahluleka ngesikhathi interface isabonakala njengekhiyiwe. Isixhumanisi sikhuphukile; inethiwekhi ayikaze ikhuphuke. Yenza izivivinyo ezine ezingezansi ngokulandelana futhi ume kulowo ochaza igebe.
Ikheli le-link-local lifakazela ini ngempela
I-IPv6CP ikhuphula i-IPv6 esixhumanisini se-PPP futhi ixoxisana ngesiphawuli se-interface ohlangothini ngalunye. Leso siphawuli sidala ikheli le-link-local, elanele ukukhuluma nozakwabo esixhumanisini futhi elinganele ukufinyelela enye into. Ikheli lifakazela ukuthi isixhumanisi silungele i-IPv6, futhi alifakazeli lutho mayelana nenethiwekhi engemuva kukazakwabo. Ukulifunda njengekheli lokufinyelela iyiphutha okuqala ngalo iningi lalokhu kuphenya.
Imibuzo emine engezansi ihlukanisa lokho okunqunywa uqweqwe lwesixhumanisi kulokho okufanele kukunikeze insizakalo. Phendula ngokulandelana, ngoba umbuzo wakamuva awukwazi ukuphendulwa ngesikhathi umbuzo wangaphambili usuvuliwe.
| Question | Answered by | What it does not settle |
|---|---|---|
| Is IPv6 up on the link? | IPv6CP: interface identifiers, then link-local addresses | Any address reachable beyond the peer |
| Where does a global prefix come from? | Router advertisement, delegated prefix, DHCPv6 or static configuration | IPv6CP carries no prefix of its own |
| Who owns the routes? | The client's tunnel configuration and the server's return path | A link-local address implies no route at all |
| How does this client get configured? | Explicit tunnel settings or router advertisements, depending on the client | The standard does not choose for the implementation |
Isiqalo kufanele sive ngakuphi
Ikheli lomhlaba wonke lidinga isiqalo sivelaphi: isimemezelo se-router, isiqalo esinikeziwe, i-DHCPv6 noma ukuhlelwa okungaguquki. I-IPv6CP ayithwali nasisodwa, futhi ukulinda esixhumanisini noma kungakanani ngeke kusikhiqize. I-RFC 5072 ibeka i-IPv6CP njengesinyathelo sokusetha esisebenza ngaphambi kokuba ezinye izimiso ze-IPv6 zisebenze esixhumanisini, futhi lowo umkhakha wayo wonke: ukulungiselela isixhumanisi, hhayi ukubala inethiwekhi. Nikeza isiqalo futhi interface izoqala ukuthwala ithrafikhi esikhundleni sokuba khona nje.
Izimemezelo ze-router ziyimpendulo evamile ku-LAN futhi azithembekile kangako ku-tunnel yephoyinti-kuya-phoyinti, ngoba iklayenti kufanele ithumele izicelo futhi yamukele impendulo. Amanye amaklayenti e-tunnel awenzi kokubili. Hlola ukuthi iklayenti likulungele ukukwamukela ini ngaphambi kokunquma ukuthi iseva kufanele ikuthumele.
Isiqalo esifanayo kufanele sifinyeleleke kusukela kolunye uhlangothi. Iklayenti elinekheli lomhlaba wonke kodwa elingenayo indlela yokubuyela lihleliwe, alixhunyiwe.
Imizila iyisithembiso esihlukile
Ngisho nekheli, iklayenti kufanele yazi ukuthi iziphi izindawo ezisemgudwini, futhi iseva idinga indlela yokubuyela yalezo zindawo. Lezi yizinqumo ezimbili ezithathwe ezindaweni ezimbili. Umgudu othwala yonke ithrafikhi ye-IPv6 udinga umzila wokuzenzakalela kuklayenti nomzila wokubuyela kuseva; umgudu ohlukanisiwe udinga ukuthi izinhlangothi zombili zivumelane ngohlu olufanayo lweziqalo. Uma zingavumelani, ithrafikhi iyahamba futhi ayibuyi neze.
Bhala uhlu ngaphambi kokuhlela noma yini. Uma uhlelo luthi isiqalo senkampani kuphela esidlula emgudwini, iklayenti akufanele libe nomzila we-IPv6 wokuzenzakalela, futhi iseva akufanele isimemezele.
Okusele kunqunywa ukuhlanganiswa kweklayenti
Amanye amaklayenti e-tunnel ahlela i-IPv6 ngokusobala. Isibonelo, i-Network Extension ye-Apple ithatha ikheli, isiqalo kanye nesethi yemizila yomgudu, ngakho uhlelo oluyisebenzisayo alilindi isimemezelo esifana ne-Ethernet. Amanye ancika ezimemezelweni ze-router ezifika esixhumanisini. Womabili amamodeli asemthethweni futhi adinga ukuziphatha kweseva okuhlukile, ngakho ukukhetha okungalungile kudala iklayenti elilinda ingunaphakade umyalezo ongathunyelwa muntu. Khomba imodeli ngaphambi kokushintsha iseva.
Igama le-interface elidala njenge-ppp0 alifakazeli lutho ngesitaki esisebenza namuhla. Iklayenti lesimanje lingasebenzisa i-API ye-tunnel yamaphakethe esikhundleni se-interface ye-PPP, futhi ukucabanga ukuthi liziphatha njengoxhumano lomlando iyindlela yokuphula umklamo osebenzayo. Buza ngeveshini leklayenti nendlela yokuhlinzeka, hhayi igama le-interface.
Bhala uhlelo oludingwa iklayenti
Incazelo ephelele ihlanganisa izinto ezintathu: iklayenti linekheli lini, umgudu kufanele uthwale iziphi izindawo, futhi inethiwekhi ibuyisela kanjani izimpendulo. Ikheli le-link-local aliphenduli neyodwa yazo, futhi isimemezelo esamukelwe siphendula ingxenye yeyodwa kuphela. Hlola into ngayinye ngokwehlukana esikhundleni sokwamukela isikhombi esiluhlaza. Bese ubhala ukuthi iyiphi indlela enikeze impendulo ngayinye, ngoba lowo mbhalo wenza umbiko we-IPv6 olandelayo ube ukuhlola kwemizuzu emibili.
Gcina umbhalo kanye nemibhalo yensizakalo futhi uwubuyekeze uma iklayenti lishintsha. Uhlelo olwalulungile kuklayenti le-PPP lungase lube ngolungalungile kuklayenti le-tunnel yamaphakethe kuleso nsizakalo. Imibuzo emine ihlala injalo; izimpendulo kuphela ezinyakazayo.