Subnet Calculator (IPv4 CIDR)
Full IPv4 subnet kala qaybinta: network, broadcast, mask, wildcard, host range iyo tirada.
Natiijooyinka cusbooneysiinta sida aad ku qorto.
Ku saabsan Kalkaaliyahan
This subnet calculator turns an IPv4 address and a CIDR prefix into the full structure of a subnet. An IPv4 address is 32 bits, usually written as four dot-separated octets like 192.168.1.10, and a CIDR prefix such as /24 splits those 32 bits into a network part (the leading bits, fixed for every host in the subnet) and a host part (the remaining bits, unique to each device). This calculator takes an address and a prefix length and derives the network address, broadcast address, subnet mask, wildcard mask and the range of usable host addresses, along with the IP class and total address count.
The size of a subnet is set by the prefix: a /n block holds 2^(32−n) addresses, of which two are reserved — the network address (all host bits 0, naming the subnet) and the broadcast address (all host bits 1, reaching every host). So a /24 has 2^8 = 256 addresses and 254 usable hosts, a /25 has 128 addresses and 126 usable hosts, and each extra prefix bit halves the block. As a worked example, 192.168.1.10/24 gives a network of 192.168.1.0, a broadcast of 192.168.1.255, a 255.255.255.0 mask, a 0.0.0.255 wildcard mask, and a usable host range of 192.168.1.1 to 192.168.1.254.
Subnetting is how networks are carved into manageable, secure segments — separating departments, sizing VLANs, planning address allocation and writing firewall and routing rules. The wildcard mask (the bitwise inverse of the subnet mask) is what Cisco access-control lists and OSPF use to match ranges of addresses. The /31 and /32 prefixes are special cases: /31 is used for point-to-point links with two usable addresses and no broadcast, and /32 describes a single host.
Su'aalaha badanaa la isweydiiyo
Sidee badan oo martida ah ayaa ku jira subnet?
A / n subnet leedahay 2 ^ (32−n) cinwaanka, ka yar laba ka reeban ee network iyo warbaahinta. A / 24 waxaa ku jira 256 cinwaanka iyo 254 martida isticmaali karo.
Waa maxay maskaxda wildcard?
A wildcard mask is the bitwise inverse of the subnet mask (255.255.255.0 → 0.0.0.255). Access-control lists and OSPF use it to match ranges of addresses.
Waa maxay farqiga u dhexeeya network iyo cinwaanka broadcast?
Xarunta network (hosts dhammaan bits 0) magacyada subnet; xarunta broadcast (hosts dhammaan bits 1) gaadhay hosts oo dhan on it. Labada midkoodna ma aha in la siiyo qalab.
Maxaa ka horjeeda CIDR (/24, /16) ka dhigan?
Waa tirada biita hogaaminaya oo ka kooban qaybta network ee cinwaanka. A weyn oo hore u macnaheedu yahay biita network badan iyo biita host yar, sidaas subnet yar: / 24 siiyaa 254 martida, / 25 siiyaa 126, iyo biita dheeraad ah oo dhan hal mar block.
Sideen u kala qaybiyaa shabakad subnets yar yar?
Biisha martida la siiyo by kordhinta hore. kala qaybinta /24 laba /25s siin doonaa laba blocks of 126 martida; /26 siin doonaa afar blocks of 62. kasta oo ku daray hore bit laba jeer tirada subnets iyo kala badh miisaankooda.
Maxaa ah IP cinwaanka fasalka?
Qorshaha classful hore qaybsan cinwaanka by octet-kooda koowaad: Class A (1-126), Class B (128-191) iyo Class C (192-223) ee unicast, iyo D ee multicast iyo E la ilaaliyo. CIDR badalay fasalada loogu talagalay qaybinta, laakiin xisaabinta weli warbixinno fasalka cinwaanka ku dhaca.
Maxay yihiin / 31 iyo / 32 subnets loo isticmaalo?
A / 31 waxaa kaliya laba cinwaanno iyo waxba ma baahinta, loo isticmaalo xiriirada point-to-point u dhexeeya routers. A / 32 waa cinwaan host kaliya, caadiga ah loo yaqaan loopabacks iyo jidka martida. Kalkaaliyayaasha labadaba maxkamadaha gaar ah.
API — isticmaal xisaabinta ka code
Wici xisaabinta sida free JSON endpoint - key ma loo baahan yahay. Dib u soo dir qiimaha goobta hoos ku qoran sida parameters su'aal ama JSON. Wax kasta oo aad ka maqan tahay isticmaalaa default la mid ah ee boggani waa hore loo buuxiyey la; parameter aan la aqoon waa 400, marnaba ma aha zero maqan. Akhri dhammaan API xuquuqda →
Xarafka
GET https://calculator.free/api/v1/subnet/curl
curl "https://calculator.free/api/v1/subnet/?ip=192.168.1.10&cidr=24"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/subnet/?" + new URLSearchParams({
"ip": "192.168.1.10",
"cidr": "24"
}));
const data = await r.json();
console.log(data.results);Natiijooyinka waa tirakoobka loogu talagalay tilmaamaha guud oo keliya, maaha dhaqaale, caafimaad ama talo bixin canshuur.