I-Subnet Mask Inkcazo kunye nemizekelo
I-subnet mask yi- IP efana neyona dilesi efana ne-subnetwork apho ikhompyutha okanye enye ifowuni yenethiwekhi. Inombolo ye-32-bit ehlula idilesi ye-IP kwiinkalo zayo zombini: idilesi yenethwekhi kunye nedilesi yomkeli.
I-subnet mask (ebizwa ngokuba yi-netmask), ngoko, ihlelwe njengale:
I-subnet mask idalwe ngokubeka zonke iintambo ze-intanethi ukuya kwi-1 kunye ne-host bits kwi-0s. Intanethi igcina iidilesi ezimbini ezingenakunikwa kwimikhosi, kwaye ezo zibandakanya 0 kwidilesi yenethiwekhi kunye ne-255 kwidilesi yokusasazwa.
Imizekelo yeMask Mask
Ezi zi-netmasks ezisetyenzisiweyo kwiCandelo A (16-bit), iCandelo B (16-bit), kunye ne-C-C (24-bit) amanethiwekhi:
- Amanethiwekhi aseklasini axhasa 16,777,216 abemi kunye ne-subnet mask ye-255.0.0.0.
- Amanethiwekhi eBakala B anesisksi se-subnet of 255.255.0.0 kwaye anakho kuphela amadivayisi IP 65,534.
- Uninzi lwamanethiwekhi asekhaya yiCandelo C, elikhethwe yi-mask masksi ye-255.255.255.0. Olu buninzi bomnatha lunakho ukufikelela kwiiplani ezingama-256 ze-IP, ininzi kwigumbi kuyo nayiphi na indawo eqhelekileyo kwikhaya okanye kumashishini amancinci.
Cinga idilesi ye-IP 128.71.216.118. Ukuba sicinga ukuba idilesi yeBlasi, amanani amabini okuqala (128.71) achaza idilesi yenethiwekhi yeCandelo B ngelixa ezimbini zokugqibela (216.118) zichonge idilesi yomhlali.
Bona ngaphezulu malunga ne-subnet masks kwi- Subnet Masks kunye ne-Subnetting tutorial.