Think outside the box eh? You are MAD :crazy: (In a warm fuzzy mad way)
Ethernet? Through hardware (FPGA)...
And what does the Ethernet connect to on the FPGA side? A hardware TCP/IP stack? Have you any idea how complicated a ToE (the name given to a hardware TCP/IP stack) are!!. More than likely you would have to put a whole other computer inside connected to ethernet... just to run kaillera, a TCP/IP stack, capture and send the signals over the internet!
Imagine the MorphOS metaphor, you have qbox where kaillera and tcp would live, then you would have the Amiga box... but all in hardware...
Not practical at all... is it? To have another computer?
What would be truely feasible would be to wire the serial (or parallel) port of the Amiga to the PC and run a modified Kaillera?
What would you play?