Wake On Lan behavior with Mac Mini - how to put asleep and confirm wake success?

Experimenting with Wake On Lan, I tested with a small Fujitsu Esprimo mini computer and a Mac Mini. In a Windows desktop app "WakeMeOnLan" on another unrelated computer, I can see "green" dots for awake clients, and "red" dots for sleeping clients. I can put the Esprimo to sleep, so the dots turn red, but not the Mac Mini. How can I test if my Wake On Lan works? Esprimo with Ubuntu - makes a "click" noise when switched on, so I know it worked. - The colored app indicators change between green and red, as expected. - SSH connection drops on sleep via pm-suspend. Mac Mini with latest OS - LED stays on always - Monitor turns off when starting sleep via SSH and pmset sleepnow. - Even after sleepnow, the colored app indicators are always green (unless the Mac is really switched off, so I can't wake on lan anyway) - SSH connection stays alive - After some time of inactivity the MAC's LED pulsates slowly, which at least gives an indications of a changed state. Still, the colored indicator in my wake-app is still green not red. With the mac I have tested hibernate modes 0,3,25. Energy saving settings are those: - [ ] Prevent computer from sleeping automatically when the display is off - [X] Put hard disks to sleep when possible - [X] Wake for Network Access - [X] Start up automatically after a power failure - [ ] Enable Power Nap Output of pmset -g How can I be sure that the Mac is sleeping actually? (LED, SSH connection,...) I need a way to proof that my Wake On Lan actually works for the Mac. It might just be a typical Mac issue, but I have no clue about Apple stuff.