Sometimes handy developers achieve to program a feature the original developers didn’t think of or thought it was impossible. EtherBridge made by Heiko Prüssing is such a solution.
You can use any BridgeBoard (2088/2288, 2286 or 2386) combined with a PC ISA Network card (preferable a 3Com or NE2000 compatible and for the 8088 an XT variant) to be able to use network capabilities. I used Roadshow as TCP/IP stack.
I met Heiko during Amiga34 and had a very interesting talk. He knows what he is talking about. I’m very passionate about computers and so is he.