Hi. I don’t really understand network settings, only very superficially, but I have certain wishes for setting up my three local networks. Let it be Lan1, Lan2, Lan3. I like to refer to some of my devices by name. In this case, I would like to divide the devices into groups like this: PCs, tablets, sensors, cameras, etc. I plan to connect all my networks using wireguard and would like to understand which specific network this or that device belongs to.

Naturally, these subnets (names) should not be visible on the Internet. But they must see each other's names. If I understand correctly, I need to use match-subdomain for this. But I don’t understand whether this needs to be done on all MTs or only on the main one, on which the wireguard will be based. But maybe I’m completely wrong and using match-subdomain here will be unnecessary. If match-subdomain is still useful in such a situation, then how to configure it correctly?