VLAN · IP · Subnets

VLAN & subnet planner

Enter a parent block and the number of subnets needed — get a ready-to-configure VLAN table with addresses and host counts.

Subnets

Prefix

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Hosts/subnet

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Wasted subnets

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Configuration

Parent network (CIDR)

Subnets needed

Starting VLAN ID

Common blocks

Subnets are equal-sized. The tool allocates the next power-of-2 number of subnets — requesting 5 allocates 8. Edit VLAN IDs and names in the table.

Subnet table

VLAN	Name	Network	Prefix	Gateway (suggestion)	First host	Last host	Usable hosts

Planning VLANs? You need a managed switch. TP-Link and similar brands offer proven 8–10-port L2 managed switches — full 802.1Q VLAN support at a reasonable price. See managed switches →

Equal-size subnets only. Does not model VLSM, Unraid, or provider-assigned blocks.