What you need is a PDS ethernet card. It allows an ethernet plug to directly plug into your computer. The processor direct slot is the white or black socket on the left side of the computer (take the top off so the motherboard is showing).

I would recommend system 7.5.5 for this to work smoothly. In addition I'd recommend the AsanteLite PDS card - as the one I have understands auto negotiating and should work fine when connected to a switch. I have another one - an Asanta MCLC - and it doesn't understand auto-negotiation (it expects a 10Base-T connection as this was before 100baseT existed). To get it to work, I had to buy a 10BaseT only hub and connect that to the switch - and the pds card to the hub.

Also you'll need to install Open Transport 1.1.2 - as 1.1.1 won't cut it.

I'd also recommend downloading Shareway IP - which will allow your MacOSX machine to communicate with your LCIII via appletalk through ethernet.

Another hint of advise - I had to manually set up my ip, subnet mask, gateway, and dns server (set as your modem's or router's ip). The computer would for whatever reason not negotiate these settings automatically.

If you have any questions - write back!

--Rob