OpenEther

VLSM Subnet Allocator

Efficiently allocate variable-length subnets from a base network. Automatically calculates optimal subnet sizes based on host requirements.

VLSM Subnet Allocator

HOW TO USE

  • • Enter your base network address and CIDR prefix
  • • Add subnet requirements with names and required hosts
  • • Click "Allocate Subnets" to generate the VLSM allocation
  • • Subnets are allocated largest-first for optimal efficiency