CIDR Allocator

Pack requested subnet sizes into pools using intelligent bin-packing algorithms

First-Fit

Fast allocation - uses the first available block that fits (good for speed)

Best-Fit

Optimal packing - uses the smallest available block that fits (reduces fragmentation)

Available Pools

Subnet Requests

Allocated

Failed

0.7%

Efficiency

Total Pool Space: 69,632 addresses

Allocated: 496 addresses

Remaining: 69,136 addresses

/24 Office Network

Allocated

192.168.0.0/24 in 192.168.0.0/16 (256 addresses)

/25 Guest WiFi

Allocated

192.168.1.0/25 in 192.168.0.0/16 (128 addresses)

/26 Servers

Allocated

192.168.1.128/26 in 192.168.0.0/16 (64 addresses)

/27 Management

Allocated

192.168.1.192/27 in 192.168.0.0/16 (32 addresses)

/28 DMZ

Allocated

192.168.1.224/28 in 192.168.0.0/16 (16 addresses)

192.168.0.0/16

0.8% used

192.168.0.0/24 Office Network

192.168.1.0/25 Guest WiFi

192.168.1.128/26 Servers

192.168.1.192/27 Management

192.168.1.224/28 DMZ

65,040 addresses 192.168.1.240 - 192.168.255.255

10.0.0.0/20

0.0% used

4,096 addresses 10.0.0.0 - 10.0.15.255