Yes. This is exactly what I want. We have some photovoltaic-systems. Some locations have Internet via cable. But others have only a dial-up-connection via LTE/UMTS. The problem is, that this UMTS-connected routers could not use DYN-DNS, because the providers share the IP adresses with other users. So we need the VPN to connect to the router. Each photovoltaic-system has a Data-logger we need to connect to. So the Logger is connected to the LAN-Port (it only has one!) of the router. Also sometimes we have a switch on the only LAN-Port and need more than one Device to connect. But in basic the most important thing is, that I can have access to whatever device that is connected to the LAN-Port from my homeoffice, without port-forwarding or other barriers like that.
So if I have to switch to TAP, I think I have to reconfigurate some stuff. I bet its not enough if I simply change this value in the server.conf ?
Thank you guys for investing time and helping me.
greetz Gerd