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Subnet Divider (VLSM)
Split a network into smaller subnets and see the usable range, broadcast and host count of each one.
How subnetting works
Splitting a network means borrowing bits from the host part to create smaller subnets. Going from a /24 to a /26 borrows 2 bits, creating 4 subnets of 62 usable hosts each. Each extra bit doubles the number of subnets and halves the hosts.
Formula: subnets = 2^(new prefix minus base prefix). Usable hosts per subnet = 2^(32 minus new prefix) minus 2. A
/30 (2 hosts) is the smallest useful one for point-to-point links.Ferramentas relacionadas
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