Every usable address in the subnet is written to the database when you save, so allocation is collision-free under load. The network address, the broadcast address and the gateway are excluded automatically.

@csrf

{{-- Sizing guidance up front: the /22 ceiling is a real constraint of the materialisation approach, not a whim. --}}

Sizing

/24 — 254 hosts (253 after the gateway). Typical.
/23 — 510 hosts.
/{{ $maxPrefix }} — {{ number_format((1 << (32 - $maxPrefix)) - 2) }} hosts. The widest allowed.

Wider subnets are rejected because each address becomes a database row. Add a second pool instead of one enormous range.

Create pool

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