SubnetSleuth

Documentation

Everything you need to go from an installer to a documented network.

Licences and activation

The trial

SubnetSleuth runs with every feature for 14 days from the first time you open it, on one network and up to 25 devices in a project:

  • The first scan names the network: a single subnet of up to 256 addresses (for example 10.20.0.0/24). Later scans and pulls stay inside it, and a scan does not follow neighbours out of it.
  • A project keeps up to 25 devices, network devices and hosts together. Polling stops at 25, and SubnetSleuth tells you how many more it found.
  • A pull from a firewall, dashboard or directory keeps only the records inside the network, after a first scan.
  • A project that already holds more (the sample network, or one made with a licence) opens and keeps everything.

A licence lifts both limits. The status bar shows how many days are left. When the trial ends, scanning, pulling from connections, deep scans, host inspection, configuration capture and AI questions stop until you add a licence. Opening, viewing, editing, saving and exporting your projects always keep working: your data is never locked away.

Activating a licence key

After checkout you see your licence key and can download it as a .lic file.

In the app: choose Help ▸ Licence, paste the key or click Load licence file, then Activate. The status bar then shows who it is licensed to and until when.

On the command line:

subnetsleuth license activate subnetsleuth-pro-lic_0123456789abcdef.lic
subnetsleuth license status

The desktop app and the command line on the same computer share the licence.

Offline and isolated networks

A licence key is a signed document that SubnetSleuth checks on your computer. There is no activation server and nothing to sign in to, so it works on a laptop with no internet access and on isolated networks. The key holds your name, email, organisation, plan and the date it runs to; it holds nothing else.

How many computers

A Pro licence is for one person on up to three computers they use. A Team licence covers five named people. Moving to a new computer: paste the same key there, and remove it from the old one with Help ▸ Licence ▸ Remove licence (or subnetsleuth license remove).

When the year ends

Renewal is never automatic. If you renew, paste the new key. If you do not, you keep the right to use every version released while your licence was active, for as long as you like; versions released after it ended need a current licence. SubnetSleuth tells you which applies.

Test licences

A licence bought while checkout is in test mode is marked as a test licence in the app. It lasts 14 days and has the trial's limits (one network, up to 25 devices), so the whole purchase can be tried without a real payment; then it simply stops.