WOW - wake on wan

[Mr.Bobo]

Hi guys, I saw the other day a video by spaceinvader where he wakes a VM remotely using a port forward and a website called depicus to send the magic packet (https://www.depicus.com/) to the server (using MAC address). The reason I ask is my mobo supports WOL but not scheduled sleep, so when I use the sleep community app my server doesn't come back online unless I physically wake it, which makes it a bit useless when i'm away. Which made me wonder weather this could work to wake the unraid server itself remotely?

[Zonediver]

WOL/WOW needs a packet sent to the machine to wakeup. If you do this automaticly over a cron or something else, then it could work.

But beware: It depends on your router and the proper config to receive the packet over the inet (WOW).

Some routers cant handle this, on others you need special tricks because the WOL-packet comes over port 9 and will be droped (WOL is not routable).

But you can realise it over a broadcast over a random port - but not port 9! (if the router is able to handle this and forwards the packet).

I do this with my unraid/plex-server over an Android-app which sends a WOW-broadcast to my ip, the router takes this packet (for example port 65000) and forward it to my unraid-machine on port 9 to wakeup the server - but again, the router must support this procedure!

All in all a "tricky" thing which needs extended network knowledge.

 

You can also read this article for an additional explanation

http://hacking.elboulangero.com/2015/12/11/wake-on-wan.html