[Sender] Missing option to select the interface

[hansSchall]

I found no documentated way to the select the interface the data is sent to.

The default interface is choosen automatically. In my case this is always the WiFi interface, even if it is turned off. For local loopback this is no problem, if the default receiver interface is used, too. This makes it impossible to comunicate over network if the computer has more than one network interface.