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Network Configuration
Before IP Manager can manage your network, you need to tell it about your subnet layout. This is done through the Settings panel.
Click the ⚙️ Settings icon in the top-right toolbar (desktop), or tap Settings in the mobile Tools menu.
| Field | Description | Example |
|---|---|---|
| Network name | A label for this network |
Home LAN, IoT VLAN
|
| Network address | Your subnet prefix — trailing zeros are stripped automatically |
192.168.1.0 → 192.168.1
|
| Subnet mask |
/24 or /16 supported |
/24 |
| DHCP start | First IP in your DHCP pool | 192.168.1.100 |
| DHCP end | Last IP in your DHCP pool | 192.168.1.199 |
| Static start | First IP in your static assignment range | 192.168.1.2 |
| Static end | Last IP in your static assignment range | 192.168.1.99 |
| DNS resolver | IP of your local DNS server for PTR lookups | 192.168.1.53 |
The live preview below the fields shows the calculated CIDR and how many IPs are in each range before you save.
| Range | Colour in app | Meaning |
|---|---|---|
| DHCP start → DHCP end | Blue | Managed by your router/DHCP server |
| DHCP Reservations list | Blue with pin | Fixed DHCP assignments (can be anywhere on the network) |
| Static start → Static end | Green (if free) | Available for manual static assignment |
| Assigned static IPs | Various | Claimed entries |
Free IPs inside the static range appear as green "Available" cards — click one to claim it for a new device.
Each network has its own DNS resolver setting. This is used for PTR (reverse DNS) lookups — resolving an IP address to a hostname.
Set this to:
- Your Pi-hole IP if you use Pi-hole for DNS
- Your Unbound resolver IP for a local recursive resolver
- Your router's IP if it handles DNS
- Leave blank to skip reverse lookups for this network
Mismatches between the stored hostname and the PTR record are flagged with an amber warning on the card.
IP Manager supports unlimited networks. Each network is fully independent — separate IP ranges, separate entries, separate DNS resolver.
To add a network:
- Click the + button next to the network tabs at the top of the app
- Give it a name and configure its subnet
- Switch between networks using the tabs
Common use cases:
- Main LAN + IoT VLAN
- Home + home office networks
- Lab network + management VLAN
Both /24 (e.g. 192.168.1.x) and /16 (e.g. 172.16.x.x) networks are supported. For /16 networks, the app manages the full 65,534-address range and the IP table handles it efficiently.
Reservations are fixed DHCP assignments — devices that always get the same IP from the router, identified by MAC address. They can live anywhere on the network, including outside the static range.
Add them under Settings → DHCP Reservations by entering the IP address. They appear in the app with a distinct styling so they're easy to identify.
IP Manager · GitHub · Releases · PolyForm Noncommercial License
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