Kungani amakhasi e-OpenConnect ema aze wehlise i-MTU yomhubhe

Ukungena kuphumelela, ikhasi lokuqala lesango liyadwetshwa, bese kuthi iwijethi yedashibhodi noma umbiko uhlale ku-waiting for host aze isiphequluli sinikele. Amasayithi omphakathi alayisha ngokujwayelekile isikhathi sonke, futhi akukho imininingwane yokungena eshintshile. Ukuthi izimpendulo ezincane zifike ngenkathi ezinkulu zima kuwuphawu lophahla losayizi wephakethe, hhayi umthetho wokufinyelela. Qinisekisa lokho kufunda ngaphambi kokushintsha noma yini enye kuphrofayela.

Hlukanisa inkinga yosayizi enkingeni yenqubomgomo

Qala ngokuqeda ukwenqatshwa. Ukube isango belikwenqabile, ukuxhumana bekuzohluleka ngokushesha esikhundleni sokulayisha ikhasi ngengxenye. Umhubhe ophakama bese uma kuphela ekudlulisweni okukhulu ukutshela ukuthi indlela yangaphandle ayikwazi ukuthwala iphakethe langaphakathi.

Indlela i-encapsulation. Iphakethe ngalinye langaphakathi lithola izihloko zomhubhe, ngakho umthwalo owawungena kusixhumanisi somzimba uba yiphakethe langaphandle elingasangeniyo, futhi noma yini ethwala ibhithi le-do-not-fragment iyalahlwa ngaphandle kwempendulo isiphequluli esingayihumusha.

Linganisa uphahla ngama-do-not-fragment probe

Linganisa uphahla esikhundleni sokuqagela. Thumela ama-probe anqaba ukuhlukaniswa futhi wehlise umthwalo igxathu negxathu aze kubuya impendulo, qala ngomyalo ofana nawo ping -M do -s 1472 host. Impendulo ekhononda ngokuthi ukuhlukaniswa kuyadingeka ngenkathi i-DF isethiwe isho ukuthi inani lisephezulu kakhulu. Phinda ku-1462, bese kuba ku-1452, futhi ume kusayizi wokuqala ophendulayo. Bhala inombolo kanye nomsingathi oyihlolile, ngoba impendulo ingeyaleya ndlela hhayi iphrothokholi ngokujwayelekile.

Hlola ikheli umhubhe othumela kulo ngempela ithrafikhi. I-probe yangaphandle ebhekene negama lomphakathi lesango kanye ne-probe yangaphakathi ebhekene neseva yangaphakathi zilinganisa amagxathu ahlukene, futhi ukuhlunga kwe-ICMP kunoma yikuphi kungenza indlela enempilo ibonakale iphukile.

Sebenzisa inani kudivayisi yomhubhe

Sebenzisa umphumela kusixhumanisi esidalwe yiklayenti, hhayi ku-adaptha ye-Wi-Fi. Kuklayenti le-Linux lokho ip link set dev tun0 mtu 1300 bese kuba ip link show tun0 ukuqinisekisa ukuthi inani lamukelwe. Sebenzisa noma yiliphi igama ledivayisi elibikwa yiklayenti, ngoba liyahlukahluka ngokuya ngokusetshenziswa nangendlela umhubhe owakhiwe ngayo.

Ukwenza i-MTU yomhubhe yehle kunciphisa umthwalo othwalwa iphakethe ngalinye, ngakho ukudlula kwesamba kwehla kancane, futhi lokho kuyintengo yokungalahli izimpendulo ezinkulu emgodini omnyama. Inombolo encane ayiphephile ngokuzenzakalela. Ukushintsha i-adaptha yomzimba esikhundleni salokho kusabalalisa umonakalo kukho konke ukuxhumana kuleyo sixhumanisi ngenkathi amaphakethe angaphakathi amakhulu ngokweqile ehlala ekhulu ngokweqile.

Qala ngokusebenzisa izicelo ze-MTU zeklayenti ngokwalo

Uma wena ulawula ukubizwa, iklayenti lingacela usayizi esikhundleni sokulungiswa kamuva. --mtu licela i-MTU yomhubhe kuseva, futhi --base-mtu limemezela i-MTU yendlela engaphansi ukuze isango likwazi ukuthola inombolo yomhubhe. Kokubili izicelo, futhi incwadi yeklayenti ayithembisi ukuthi isango lizohlonipha enye yazo.

Lowo mehluko unquma ukulandelana komsebenzi wakho. Zama isicelo kuqala futhi uhlole isixhumanisi esikukhiqizayo, bese ubuyela ekusetheni idivayisi endaweni uma inani elikhethwe isango lisama.

Qinisekisa ngokudluliswa okuhlulekile, bese ukwenza kube okungapheli

Ushintsho ip link lwasendaweni luhlala kuze kube yilapho iklayenti lakha umhubhe kabusha, okwenzeka ekuxhumaneni kabusha noma ekuqhubekeni okulandelayo. Beka inani lapho ukuxhumana kuqala khona: isembozo esiqalisa iklayenti bese silungisa idivayisi, iyunithi ye-systemd enesinyathelo se-ExecStartPost, noma inketho yeklayenti uma isango liyivuma. Yigcine eceleni kwephrofayela ekulawulweni kwezinguqulo ukuze umuntu olandelayo abone ukuthi kungani inombolo ikhona.

Hlola ngesicelo esahluleka, hhayi ngekhasi lokuqala. Vula umbiko, donsa isithasiselo, noma gijimisa ukulandwa kwesitoreji obekumile, futhi bhala ngqo ukuthi kuma kuphi uma kusama. Ikhasi elidwetshwa ngemuva koshintsho lifakazela okuncane, ngoba belidwetshwa nangaphambili.

Uma ukudluliswa okufanayo kuma endaweni efanayo, umbono we-MTU awukafakazelwa. Bhamba ithrafikhi kumhubhe futhi uhlole ukuthi yiluphi uhlangothi oluyeka ukuthumela ngaphambi kokushintsha inombolo futhi, futhi gcina inani langaphambilini libhaliwe ukuze ukubuyisela emuva kuhlale kuwumyalo owodwa.