I feel like if you want a robust ID for your machines, using DNS instead of hardcoded IP adresses is a better idea. That way you can move services from edge to cloud and vice versa with a single nameserver update, instead of having to do so on every single edge.

Or, if you want to keep things local, run a lightweight nameserver on your LAN to resolve .home or .lan domains. Much nicer to type fridge.home in your browser than 192.168.1.57 or some such.