Independent, privacy-first network planning tools
HNHome Network Lab
VLAN / IP PLANNER

Detailed VLAN and IP address planner

Lay out CIDRs, gateways, DHCP scopes and reserved IPs per VLAN, then review conflicts and a policy draft.

Local processing: Input is neither transmitted nor auto-saved. Save it yourself as JSON. Do not enter passwords, public IPs or device serial numbers.

1. Add a VLAN segment

Use a private IPv4 network address from /16 through /30. The gateway and DHCP scope must be usable addresses in that subnet.

2. Address capacity and conflict checks

NamePurposeVLANCIDRGatewayDHCPUsableDHCP sizeReservedAction

3. Add a reserved IP

4. Reserved IP ledger

VLANDeviceIPNoteAction

5. Least-privilege firewall policy draft

This is a review draft, not device-ready configuration. Verify DNS, DHCP, NTP, mDNS and stateful reply rules against your device documentation.
SourceDestinationServiceAction

6. Files and print