Try the The D4 Network Guide. This link is for the Nikon USA site, you probably can find it on the Austrailian site too. From the Nikon USA homepage I followed the Support > Downloads > DSLR > DSLR (again) > D4 links to find it.
I managed to get through a wired Ethernet connection to my switch when I first got my D4 last May. I haven't had any reason to try it since, so I've forgotten what I did. I suspect that some of the instructions for wireless also apply to the direct cable connection.
Gary in SE Michigan, USA. Nikonians membership - My most important photographic investment, after the camera. D4, D810, D300 (720nm IR conversion), D90, F6, FM3a (black), FM2n (chrome) YashicaMat 124, Graflex Speed Graphic 4x5 My Nikonians Gallery & Our Chapter Gallery