Lesi sihloko siwukuhumusha kwamahhala kokukodwa kokufakiwe .
Ngemvume yombhali (futhi futhi ukuze kucace kanye nentshisekelo), ngengeze izixhumanisi ezithile nocwaningo oluthile lomuntu siqu.
Isingeniso
Okwamanje, okungenani umsebenzisi oyedwa kubhangqa yokuxhuma kufanele abe kumodi esebenzayo. Ukuvundla kwe-NAT kuyasiza uma lungekho uhlangothi olunemodi esebenzayo emisiwe. Lokhu ngokuvamile kwenzeka ngoba ukuxhumeka okungenayo kuvinjwe ngohlelo lokuvikela noma idivayisi ye-NAT.
Uma womabili amaklayenti ekwimodi esebenzayo
Iklayenti eliqalayo lithumela umyalo oqukethe ikheli lalo le-IP kanye nembobo kwelinye iklayenti. Ngokusebenzisa le datha, iklayenti elithola umyalo lisungula ukuxhumana nomqalisi.
Uma elinye lamaklayenti likumodi yokwenziwa
Ngehabhu, iklayenti elingenzi lutho A ithumela umyalo iklayenti elisebenzayo B, ebese iphendula ngomyalo we-$ConnectToMe.
Njengeseva S esimweni esingenhla, ihabhu le-DC likhona
Uma womabili amaklayenti ekwimodi yokwenziwa avuliwe
Amaklayenti atholakala ngemuva kwe-NAT ehlukene A и B wajoyina ihabhu S.
Yile ndlela ukuxhumeka kuhabhu kubukeka ngayo kusukela ohlangothini lweklayenti. A
Ihabhu yamukela ukuxhumeka ku-port 1511. Iklayenti A yenza ukuxhumana okuphumayo kunethiwekhi yayo yangasese ngembobo engu-50758. Ihabhu, yona, ibona ikheli ledivayisi ye-NAT, isebenze nayo, futhi isakaze kumakhasimende ngokuya ngezihlonzi zawo.
Ikhasimende A ithumela kuseva S umlayezo ocela usizo lokuxhumana neklayenti B.
Hub: [Outgoing][178.79.159.147:1511] DRCM AAAA BBBB ADCS/0.10 1649612991
Ukuba futhi kwimodi yokwenziwa, iklayenti B, lapho ithola lo myalo, kufanele ibike imbobo yayo yangasese esetshenziswe ukuxhuma kuhabhu nge-NAT.
Hub: [Incoming][178.79.159.147:1511] DNAT BBBB AAAA ADCS/0.10 59566 1649612991
Ngemva kokuthola lolu lwazi, iklayenti A ngokushesha uzama ukusungula ukuxhumana neklayenti B futhi ibike ichweba layo eliyimfihlo.
Hub: [Outgoing][178.79.159.147:1511] D<b>RNT</b> AAAA BBBB ADCS/0.10 <b>50758</b> 1649612991Liyini iphuzu? Iphuzu liwukushintsha iphoyinti lokugcina loxhumano olufanayo ngokudala uxhumano olusha ekhelini lomphakathi ngokusebenzisa imbobo yangasese esivele isetshenzisiwe.
Ibhingo!
Kunjalo, kulesi simo i-NAT yeklayenti B unalo lonke ilungelo lokwenqaba isicelo sokuqala sokuxhuma esivela kuklayenti A, kodwa isicelo sakhe siqu sesivele siqondiswe "embobeni" edalwe yilokhu kuxhumana, futhi uxhumano lugcina lusungulwe.
Umfanekiso ohambisana nayo yonke inqubo ne-caveat yalokho ayisebenzisi izimbobo ezisesidlangalaleni ezivulwe iseshini I-NAT‒S, kanye namakheli ayimfihlo.
Epilogue
Ngesikhathi sokubhala, cishe uhhafu wamakhasimende e-DC asebenza ngemodi yokwenziwa. Lokhu kusho ukuthi ingxenye yesine yakho konke ukuxhumana okungenzeka ayikwazi ukusungulwa.
Ngokuqhubekayo , usebenzisa ukuxhumana okukhona A‒S и B‒S ukusungula uxhumano oluqondile lweklayenti-neklayenti, noma ngabe A и B zikumodi yokwenziwa.
Source: www.habr.com
