QGC-PX4 link over Immarsat BGAN satellite(not iridium)

Hi all,

I’m trying to use immarsat BGAN satellite communication for PX4 telemetry.
Do you have any adivce on how to connect the vehicle and QGroundControl (v4.0.11,customized) over the satellite communication?

The communication unit on the vehicle has a global IP adress.
I’m trying to achive the communication like the image below.

I have tested that I can directly connect QGC and UART-Ethernet Converter, but I have no idea what to do next.

This question could be reworded as “How do you link a PX4 located on a server on the internet on QGC?”.

I would appreciate it if you would give me some advice. Thanks.