Aşak şlýuka hasapçysy (IPv4 CIDR)
IPv4 subnetiň doly bölüşmek: netir, bradyş, maska, wildcard, hosty aralyk we sanaw.
Netijeler ýazýan wagtyň täzelener.
Bu hasapçy hakda
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.
Köp soralýan soraglar
Bir subşetde näçe hosty bar?
A /n subnet has 2^(32−n) addresses, minus two reserved for the network and broadcast. A /24 has 256 addresses and 254 usable hosts.
Wildcard mask näme?
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.
Taryhy adresi we ýaýrat adresi arasy nädip tapawutlanýar?
Taryhy adres (hämmesi host bitleri 0) asty şlýaň adyny berýär; ýaýratma adresi (hämmesi host bitleri 1) onda her hosta ýetýär. Ikisi hem bir enjamy bellemek mümkin däl.
CIDR prefiks (/24, /16) näme aňladýar?
It is the number of leading bits that form the network portion of the address. A larger prefix means more network bits and fewer host bits, so a smaller subnet: /24 gives 254 hosts, /25 gives 126, and each extra bit halves the block.
Men bir aragatnaşyky nädip kiçi sub aragatnaşyklara böleýin?
Hojalykçynyň bitini prefiksi artdyryp al. /24 iki /25'e bölmek iki blok 126 hojalykçyny berýär; /26'e gitmek dört blok 62'i berýär. Her bir goşulan prefiks biti iki esse subnetler sanyny köpeldýär we olaryň ululygyny yarıya düşürýär.
IP adres klasy näme?
Eski klasful shema adresleri olaryñ ilkinji oktetleri bilen bölüp: A (1-126) klasy, B (128-191) klasy we C (192-223) klasy unicast üçin, plus D multicast üçin we E reserved. CIDR klaslaryñ ornuny alan, emma hasapçy hala adresiň düşen klasyny habar berýär.
/31 we /32 altşebekeler näme üçin ulanylýar?
A /31 diňe iki adresi we hiç bir ýaýratma bar, routers arasyndaky nokatdan-nokata baglanyşyk üçin ulanylýar. A /32 bir host adresi, loopbacks we host ýollar üçin ulanylýar. Kalkülatör iki aýratyn hadysalary hemmesini işledýär.
API — bu hasapçyny koddan ullan
Bu hasapçyny boş JSON ahtar noktasy hökmünde çagyr - açar gerek däl. Aşakdaky meýdança mykdarlaryny soragyň parametrleri ýa-da JSON hökmünde iber. Siziň goýmaýan hernäňiz şu sahypanyň öň bellenen öň bellenenini ulanýar; namydar parametr 400, hiç wagt sessiz sıfır däl. Eňlisçe senedleri oka →
Endpoint
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);Netijeler diňe umumy ýardam üçin hasaplanypdyr, maliýe, saglyk ýa-da salgyt maslahaty üçin däl.