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WoL through Wireguard (lemmy.ml)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/selfhosted

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Hello.

I was willing to post this in the home network community, but it is not active at all... So I hope this is the right place, as I use a self hosted wireguard and pihole.

I'm just a hobbyist whose first language is not English, so please, bare with me :)

So I use Wireguard Easy to create a tunnel to my home network to use pihole on my phone and access my services from outside.

I have an app to wake my home computer on LAN that is working fine when I'm home. I'd like to be able to wake it from outside and I don't know how.

A few things are bugging me. If I'm connected to my home network, shouldn't I be able to WoL my computer as long as I use my tunnel ?

And, on some occasions, I was able to WoL my PC when I wasn't home (I remember doing it once when I was visiting my parents).

Can someone ELI5 this please ?

Thanks for your help :)

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[–] PriorProject 0 points 1 year ago* (last edited 1 year ago)

This is a very strong explanation of what's going on. And as a follow-up, I believe that ZeroTier present a single Ethernet broadcast domain, and so WoL tricks are more likely to work naturally there than with Wireguard. I haven't used ZeroTier, and I do use Wireguard via Tailscale/Headscale. I've never missed the Ethernet features of ZeroTier and they CAN result in a very chatty wan if you're not careful. But I think ZT would make this straightforward.

Though as other people note... the simplest/least-disruptive change is probably to expose some scripty thing on the rpi that can be triggered via be triggered over a routed protocol and then have the rpi emit the Ethernet broadcast packets from the physical network.