Iyo subnet mask 255.255.255.0 kero ndiyo inowanzojaira subnet mask inoshandiswa pamakombiyuta akabatana neInternet Protocol (IPv4) mitambo. Kunze kwekushandiswa kwayo pamakambani emagetsi emunharaunda, unogonawo kusangana nemasikisi aya pamakambani ekugadzirwa kwevashandi akadai seCACNA .
Misoroti inoita seyero yakaoma, kuparadzanisa bhokisi reIndaneti muzvikamu zviduku. Iyi tsika inoderedza mitambo yekushungurudza uye inobvumira kuwana granular kusvika pasi.
A subnet mask inoratidza munhu ari pasi pepasi.
255.255.255.0 uye Subnetting
Nhamba dzemaitiro emagariro aishanda nemamwe mazita anonzi classful network akaparadzanisa IP aderesi mune rimwe remakirasi mashanu (Kirasi A / B / C / D / E) maererano nekukosha kwenhamba yeIndaneti.
Iyo subnet mask 255.255.255.0 inoshandura kusvika ku-32-bit bhariary kukosha:
- 11111111 11111111 11111111 00000000
Nhamba dze 0 dzeyi mask dzinotarisana neP IP urongwa hwe subnet-8 bits kana kusvika 256 aderesi munyaya ino. Nhamba yakawanda ye-subnetworks yakakura-duku inogonawo kutsanangurwa nekugadzirisa masikisi sezvinoratidzwa mune tafura iri pasi apa.
| Mask | Subnetworks | Nodes / Subnet |
|---|---|---|
| 255.255.255.0 | 1 | 254 |
| 255.255.255.128 | 2 | 126 |
| 255.255.255.192 | 4 | 62 |
| 255.255.255.224 | 8 | 30 |
| 255.255.255.240 | 16 | 14 |
| 255.255.255.248 | 32 | 6 |
| 255.255.255.252 | 64 | 2 |
Chimwe chisinganzwisisiki subnet mask (chinonziwo netmask ) chinokonzera mamwe maitiro ekukundikana kwehutano .
Subnets uye CIDR
Muchidimbu chechirongwa chekare, mazita akawanda eIndaneti asingashandisi akaparadzana nekuti vashandi vepainternet uye makambani makuru vakachengetwa kero yekuvhara dzisingakwanisi kugoverwa.
Zvizhinji zveInternet zvakabva zvashandurwa kuIndaneti isina ruzivo yekubatanidza kushandura mafungiro ekugoverwa mazano uye kurarama nekuwedzera kwekuda kwe IPv4 internet adresses muma 1990.
Nhamba dzisingaenzaniswi mitambo inoshandura tsika dzemazuva ano pasi pekumiridzirwa kune shorthand notation yakagadzirirwa nhamba yemajeri 1 mumasikisi.
Usingawanikwi Inter-Domain Routing shorthand anonyora idiresi yePI uye inosanganiswa nemasikisi mumhando iyi:
xxx.xxx.xxx.xxx/n
Pano, n inomiririra nhamba pakati pe1 ne31 iyo nhamba yezvigaro 1 mu maski.
CIDR inotsigira classless IP addressing uye masangano network masks ne IP network nhamba dzakasiyana nedzimwe tsika yavo. Vanogadzirisa vanotsigira CIDR vanoziva mavhenekeri semigwagwa yega, kunyange zvazvo vangave vanomiririra kusangana kwezvikamu zvakasiyana-siyana zvemashoko.
Network Classes
Sangano reInternic rinotungamirira mazita emadunhu eIndaneti rinoparadzanisa IP mazita mumakirasi. Zvose zvinowanzoitika kune aya makirasi A, B, uye C. Makirasi eC C ese anoshandisa zvisingasviki pasi subnet mask ye 255.255.255.0.
Kushandisa 255.255.255.0 se IP Address
Kunyange zvazvo inoratidzirwa nenzira ye IP address nhamba, maikirwe emagetsi anogona kushandisa 255.255.255.0 se mask uye kwete sekushanda kwe IP kushanda. Kuedza kushandisa nhamba iyi (kana chero imwe yenhamba yePI inotanga ne 255) seadhesi yedhizha inoita kuti IP network connection isakundikana nekuda kwenotsanangudzo yezvikwata zvepaIndaneti.