Gratis · Netwerk en IT-infrastructuur
VLSM-calculator.
Verdeel een IPv4-blok in subnetten van verschillende grootte op basis van het aantal hosts per subnet, met volledig adresplan en vrije ruimte.
- Block size
- 1,024 addresses
- Allocated
- 548 addresses
- Free
- 476 addresses
- Block used
- 53.5 %
- Hosts requested
- 507
- Free blocks
- 192.168.2.36/30, 192.168.2.40/29, 192.168.2.48/28, 192.168.2.64/26, 192.168.2.128/25, 192.168.3.0/24
Allocation plan
| Name | Hosts needed | Subnet | Mask | First host | Last host | Broadcast | Usable | Spare |
|---|---|---|---|---|---|---|---|---|
| Guests Wi-Fi | 250 | 192.168.0.0/24 | 255.255.255.0 | 192.168.0.1 | 192.168.0.254 | 192.168.0.255 | 254 | 4 |
| Sales | 120 | 192.168.1.0/25 | 255.255.255.128 | 192.168.1.1 | 192.168.1.126 | 192.168.1.127 | 126 | 6 |
| Engineering | 60 | 192.168.1.128/26 | 255.255.255.192 | 192.168.1.129 | 192.168.1.190 | 192.168.1.191 | 62 | 2 |
| Voice | 50 | 192.168.1.192/26 | 255.255.255.192 | 192.168.1.193 | 192.168.1.254 | 192.168.1.255 | 62 | 12 |
| Servers | 25 | 192.168.2.0/27 | 255.255.255.224 | 192.168.2.1 | 192.168.2.30 | 192.168.2.31 | 30 | 5 |
| WAN link | 2 | 192.168.2.32/30 | 255.255.255.252 | 192.168.2.33 | 192.168.2.34 | 192.168.2.35 | 2 | 0 |
- Hosts needed should include the gateway and any addresses reserved for routers or HA pairs.
- Every subnet starts on a multiple of its own size, as routing requires.
Zo gebruik je deze tool: VLSM-calculator
Voer gegevens in of kies een bestand. Pas de instellingen aan, maak het resultaat en controleer het voordat je het kopieert of downloadt.
Limieten en ondersteunde formaten
Je invoer wordt op je apparaat verwerkt.
Technische opmerkingen in het Engels
IPv4 only, up to 200 subnets. Subnets that do not fit are listed as such rather than overlapping. Everything is calculated in your browser; nothing is sent or probed on the network.
Each subnet gets the smallest prefix whose usable addresses cover its hosts. Largest subnets are placed first, each aligned on a multiple of its own size, so no address is wasted between them. The remaining space is summarised as CIDR blocks.
192.168.0.0/22 split for 250, 120, 60, 50, 25 and 2 hosts gives /24, /25, /26, /26, /27 and /30 with 476 addresses left.