MinimServer and endpoint on different subnet

[Frodo]

Thank you for the idea. I have no preference regarding the control point, Volumio may be known, but I could use other options as I have MinimServer for the meta data.

So it's about a checkpoint where I can specify the IP address of the MinimServer, like I do with foobar2000.
There is also the moode audio player, maybe that is the better choice? I just wouldn't know where to install BubbleUPnP Server and the BubbleUPnP tether client.