To use wake on lan you must configure the port used in Configuration\Asset Pages in the 'Wake on Lan' section. Also note that the wake on lan feature does not currently work over different subnets. Wake on lan uses IP broadcasts to send messages, by default these packets will not leave the subnet. To send the wake on lan action to a different subnet you have 3 options:
- Configure your routers to allow directed broadcasts.
- Install a separate scanning server on each subnet. (This requires a license that allows more than 1 scanning server)
- Use VLANs to connect your scanning server part directly to each subnet
Maybe a bit obvious, but the assets need to have WOL enabled.