Ukuhlola inkinga ye-MTU ye-VPN esolwayo ngaphandle kokuqagela amanani

Ukuzama uhlu lwamanani e-MTU e-inthanethi kuze kube yilapho elinye lizwakala lishesha kakhulu akusona isivivinyo, kungukusesha okungenamthetho wokuma. Indlela esebenzayo ishintsha isimo esisodwa sosayizi esilawulwayo futhi iqhathanisa umphumela nayo leyo ndlela. Qala ngokwehluleka okuphindwayo nokungenabungozi futhi ugcine ukucushwa okusebenzayo okukuvumela ukuhlehlisa ucwaningo. Konke okungezansi kucabangela lowo mkhuba, ngoba ngaphandle kwawo ugcina unenombolo ongakwazi ukuyivikela.

Beka indlela ngaphambi kokushintsha inombolo

Bhala phansi idivayisi, isixhumanisi sokufinyelela, iphrothokholi yethaneli, iphoyinti lokugcina, indawo oya kuyo kanye nomndeni wamakheli ngaphambi kokuthinta isilungiselelo. Lezi ziqiniso eziyisithupha yindlela, futhi ukuhlolwa okuqondiswe kwenye indlela kukala enye inkinga. Futhi kwenza umphumela uphindwe, futhi yilokho okuhlukanisa isivivinyo nentambama yokugxusha. Gcina inothi eceleni kwethemini hhayi ekhanda lakho.

Qala ngokuhlolwa okuncane kakhulu okuvunyelwe ukuba ukwenze. Ushintsho ohlangothini lweseva lufinyelela wonke umsebenzisi waleyo phoyinti yokugcina, ngakho luhamba ekupheleni kophenyo, hhayi ekuqaleni.

Hlola ngosayizi owulawulayo

Ku-Linux ukuhlolwa kubukeka njenge-ping -M do -s 1400 host, futhi ku-Windows njenge-ping -f -l 1400 host. Kuzo zombili izimo ubeka umthwalo osebenzayo hhayi usayizi wephakethe, ngoba izihloko ze-IP ne-ICMP zengezwa phezulu.

Funda imibhalo yesistimu ephambi kwakho esikhundleni sokukopisha ifulegi kusuka kumyalezo weforum. Khetha indawo oyilawulayo, ukuze impendulo engekho ibe uphawu hhayi imfihlakalo. Rekhoda umyalo oqondile nosayizi oqondile kunothi olufanayo nendlela. Umphumela ongenasayizi uyindaba nje. Uma ushintsha izinto ezimbili ekugijimeni okukodwa, ngeke wazi ukuthi iyiphi eyakhiqiza umphumela.

Ukuhlolwa okwehlulekile akusona ubufakazi bomkhawulo we-MTU

Ukuhlolwa okulahlisiwe kungase kusho ukuhlunga kwe-ICMP hhayi umkhawulo wosayizi, futhi lelo phutha lenza abantu bashintshe inani elalingakaze libe yinkinga. Qhathanisa ukuhlolwa nohlelo lwangempela, kanye nomlayezo wephutha ohlobene nosayizi noma ukubanjwa okulinganiselwe, ngaphambi kokushintsha noma yini. Ama-ping amancane aphumelelayo nawo awafakazi lutho, ngoba angahlala ngokunethezeka ngaphansi komkhawulo. Ukubonwa okubili okuzimele yisilinganiso esincane ngaphambi kokuba ukucushwa kunyakaze.

Uma uhlelo lwehluleka ngesikhathi ukuhlolwa kuphumelela, unobufakazi bokuthi lokhu akusona umkhawulo wosayizi olula kuleyo ndlela. Bhala lokho phansi, ngoba kususa igatsha lonke lezinguquko ezingaba khona.

Lungisa ipharamitha eyodwa esekelwa yiklayenti kakade

Shintsha isilungiselelo esibhalwe yiklayenti sale phrothokholi futhi ushiye iphoyinti lokugcina nendawo oya kuyo kungathintwanga, ngaphandle kwalokho ushintshe izinto ezimbili ngesikhathi esisodwa. Umkhawulo we-MSS we-TCP awuhlanganisi wonke umthwalo we-UDP, yingakho isiphequluli esiqala ukusebenza singashiya iphrothokholi yethaneli yonakele ngendlela efanayo. I-IPv4 ne-IPv6 ziyizindlela ezihlukene lapha, ngoba izihloko ziyahluka ngaphambi kokuba noma yikuphi ukuhlelwa kwendlela kwenza lokho.

Hlola imindeni yomibili uma ushicilela yomibili, ngoba umphumela ovela kwenye awusho lutho ngenye. Inani elisebenze kule ndlela namuhla kusihlwa liyidatha, hhayi i-MTU ye-VPN yonke. Ungaliphakamisi libe isilungiselelo somhlaba wonke ngenxa yokudluliswa okukodwa okuphumelelayo. Bhala inani eceleni kwendlela elivela kuyo.

Ukuhlehlisa, ukuqinisekisa nokubhala

Buyisela inani lokuqala uma ukuqhathanisa kungasekeli umqagelo. Hlola ukuthi umphathi wenethiwekhi akagcinanga ukugqama okuhlala njalo kwenye indawo, ngoba yileyo ndlela ucwaningo oluba umgomo. Xhuma futhi uzame izinhlelo ezijwayelekile, hhayi kuphela leyo obuyihlola. Bese urekhoda uphawu, indlela esebenzayo, inani elidala nelisha kanye nokuthi umphumela wawuphindeka kangakanani.

Gcina leyo rekhodi kanye nesicelo soshintsho ngaphambi kokuba othile andise ushintsho. Indlela yokuthola i-MTU yendlela ku-RFC 1191 ichaza ukuthi kungani inani elincane lingasindisa enye indlela futhi lingenzi lutho kwenye, futhi uhlu lwezinombolo aluthathi indawo yalowo modeli. Isivivinyo siphelile uma usukwazi ukusho indlela, usayizi, ukubonwa kanye nenani olibuyisele.