I keep re-reading my original post, and I can't figure out how any of you think this has to do with a relay. I'm talking about using a IP power controller (like snap's wattbox or pakedge/C4's PDU) to reboot the EA-1 if it locks up or falls offline. The EA-1 is Wi-Fi connected, so I was looking for info on 'hacking' the unit to use the eth port to give internet access to the power controller or failing that, to respond to power controller's pings to confirm it the C4 os is still running properly. I understand that from within control4 software, there is no way to do this, but since the EA-1 is a device running linux at the most basic level, it certainly IS possible to make this work somehow, by someone more knowledgeable than myself.
In any case, I agree with EngineerIsaac that the only reasonable way to do this would be with a Wi-fi bridge, but for one device it seems overkill to introduce another point of failure to a system. I wouldn't trust a Linksys Wi-Fi bridge to connect the EA-1 to the system, for example, over the built in interface, so adding one for the power controller is likely to result with the EA-1 being rebooted when it was actually online the whole time, defeating the purpose.
Thanks for the feedback, though! I would take the opportunity to complain that the EA-1 has no relay as well, but the new zigbee I/O device that replaces Z2IR, Contact sensor AND relay devices is at a great price point and has worked flawlessly in the systems we've used it.