I-Address Resolution Protocols ixazulula indlela amakheli e-IP wendawo axazululwa ngayo phakathi kwamakhompyutha kunethiwekhi.
Ngendlela elula kakhulu cabanga ukuthi unakho ikhompyutha efana ne-laptop futhi ufuna ukuxhumana ne-Raspberry yakho PI ehlangene kokubili njengengxenye yokuxhumeka kwe-broadband yangakini.
Ungakwazi ukubona ukuthi i-Raspberry PI iyatholakala yini kwinethiwekhi ngokuyibeka. Ngokushesha nje uma uphahla i-Raspberry PI noma uzama noma yikuphi ukuxhumeka nge-Raspberry PI uzobe ukhahlela isidingo sokuxazulula ikheli. Cabanga ngalokhu uhlobo lokubamba ngesandla.
I-ARP iqhathanisa ikheli ne- subnet mask of the host kanye computer kwelitshe. Uma lezi zilingana ikheli selixazululwe kahle kwinethiwekhi yendawo.
Ngakho le nqubo isebenza kanjani ngempela?
Ikhompiyutha yakho izoba ne-ARP cache efinyelelwe kuqala ukuzama nokuxazulula ikheli.
Uma i-cache ingenalo ulwazi oludingekayo ukuxazulula ikheli bese isicelo sithunyelwa kuwo wonke umshini kwinethiwekhi.
Uma umshini onethiwekhi engenawo ikheli le-IP elifunwa ngakho-ke lizokwenqaba kuphela isicelo kodwa uma umshini unomdlalo khona-ke uzofaka ulwazi lwekhompyutha yokushaya ku-cache yayo ye-ARP. Kuzobe sekuthumela impendulo emuva kwikhompyutha yokuqala yokubiza.
Uma uthola isiqiniseko sekheli lekhompiyutha elihlosiwe uxhumano lwenziwe futhi ngakho-ke isicelo se-ping noma esinye senethiwekhi singacutshungulwa.
Ukwaziswa kwangempela ikhompiyutha yomthombo efuna kusuka kwikhompuyutha yokuya kuyo ikheli layo le-MAC noma ngezinye izikhathi libizwa ngokuthi ikheli le-HW.
Isibonelo Esisebenzayo Ukusebenzisa I-Arp Command
Ukwenza lokhu kube lula ukuqonda kuzodingeka ube namakhompyutha amabili anamathiselwe kunethiwekhi yakho.
Qinisekisa ukuthi kokubili amakhompyutha ashintshiwe futhi akwazi ukuxhuma kwi-inthanethi.
Manje vula iwindi lokugcina usebenzisa i-Linux bese uthayipha umyalo olandelayo:
i-arp
Ukwaziswa okuboniswayo yilwazi okwamanje olugcinwe kukhomfihlo ye-ARP yekhompyutha yakho.
Imiphumela ingabonisa umshini wakho, awuboni lutho noma imiphumela ingabandakanya elinye igama lekhompyutha uma uxhumeke kulo ngaphambilini.
Ukwaziswa okuhlinzekwa ngumyalo we-arp kanje:
- Ikheli
- Uhlobo lwe-HW
- Ikheli le-HW
- Amafulegi
- Mask
- I-Face
Uma ungenayo into ebonisiwe ke ungakhathazeki ngoba lokhu kuzoshintsha maduzane. Uma ungabona enye ikhompyutha uzobona ukuthi ikheli le-HW lisethelwe (aliphelele).
Udinga ukwazi igama lekhompyutha oxhuma kuyo. Endabeni yami, ngiyaxhuma ku-Raspberry PI zero yami.
Ngaphakathi kokugcina ugijima umyalo olandelayo esikhundleni samazwi raspberrypizero negama lekhomputha oxhuma kuyo.
ping raspberrypizero
Kwenzekani ukuthi ikhompyutha oyisebenzisayo ibheke ku-cache yayo ye-ARP futhi yaqaphela ukuthi ayikho ulwazi noma ulwazi olwanele ngomshini ozama ukuwuphonsa. Ngakho-ke uye wathumela isicelo kulo lonke inethiwekhi ecela yonke imishini kwinethiwekhi ukuthi ingaba yikhompyutha oyifunayo ngempela.
Ikhompuyutha ngayinye enethiwekhi izobukeka ikheli le-IP kanye ne-mask eceliwe futhi bonke kodwa leyo ikheli le-IP lizolahla isicelo.
Ikhompiyutha enekheli le-IP eliceliwe kanye ne-mask liyokhamuluka, "Hayi engiyo !!!!" futhi izothumela ikheli layo le-HW kwikhompyutha ecela. Lokhu kuzobe kwengeziwe ku-cache ye-ARP yekhompyutha yokubiza.
Ningikholelwa mina? Qalisa futhi umyalo we-arp.
i-arp
Lesi sikhathi kufanele ubone igama lekhompuyutha owayikopayo futhi uzobona ikheli le-HW.
Bonisa Amakheli E-IP Esikhundleni Segama le-Computer & # 39; s
Ngokuzenzakalelayo, umyalo we-arp uzobonisa igama lomphathi wezinto ngaphakathi kwe-cache ye-ARP kodwa ungakwazi ukuwuphoqa ukubonisa amakheli e-IP usebenzisa inkinobho elandelayo:
i-arp-n
Ngaphandle kwalokho, ungase ufise ukusebenzisa inkinobho elandelayo ezobonisa ukukhipha ngendlela ehlukile:
i-arp-a
Okukhipha kulo myalelo ongenhla kuyoba yinto ethile emigqeni yalokhu:
i-raspberrypi (172.16.15.254) e-d4: ca: 6d: 0e: d6: 19 [ether] ku-wlp2s0
Lesi sikhathi uthola igama lekhompyutha, ikheli le-IP, ikheli le-HW, uhlobo lwe-HW nenethiwekhi.
Indlela yokususa okufakiwe kusuka ku-ARP Cache
I-cache ye-ARP ayibambeli kudatha yayo isikhathi eside kodwa uma unenkinga yokuxhuma kwikhomputha ethile futhi usolisa ukuthi idatha yedatha egcinwe ayilungile ungasusa ingeniso kusuka ku-cache ngendlela elandelayo.
Okokuqala, sebenzisa umyalo we-arp ukuthola ikheli le-HW lokungena olifisa ukususa.
Manje sebenzisa umyalo olandelayo:
i-arp-i-HWADDR
Faka esikhundleni i-HWADDR ngekheli le-HW lokufaka ufisa ukususa.
Isifingqo
Umyalo we-arp awuvame ukusetshenziselwa umsebenzisi wakho wekhompiyutha ojwayelekile futhi uzosebenza kuphela kubantu abaningi lapho bexazulula izinkinga zenethiwekhi.