That's something Ive never been able to work out,.... poseidon support in amithlon. Once upon a time it was supported, but support was dropped somewhere along the line. What the leaves us with (amithlon users) is a bit of a mystery to me. The fact that support was dropped obviously means at some point it was supported, which in turn means it works to some degree with some versions, but what version and what support are details that have eluded me. From what Ive been able to gather I think support is via particular usb cards rather than onboard usb, but I dont know for sure.
As for the original question, perhaps using a wireless dongle via lan port might suffice?