Mine came with the Ground Control with the LCD screen and no touchpad. I am adding the touchpads and the receivers to control other functions. The gateway is a CANBUS to Ethernet bridge piggybacked onto an inexpensive wifi router. I plan on ditching the router part and hooking it directly to my MoFi.
http://mofinetwork.com/ The bridge is set to DHCP, so it should work and pull an IPaddress on the RV network. I will play with it on my home network to verify.
Here is a picture of the connections.
The top box is the Lippert CANBUS to Ethernet bridge. The bottom box is the generic router. The two (2) vertical white connectors are the CANBUS connectors. The one next to it is for power. It does not come with a power lead. I have found the CANBUS ends on Amazon. Look at my previous post for the link. I can't seem to find the power connectors anywhere. I will try and source them from Lippert or keep digging around on DigiKey, Molex, and Mouser. The components are daisy chained in Lippert's implementation. To get this to work, you will need terminating resistors. If you have the touchscreen, you should have them already. If not, hook solder a couple of 120 ohm resistors to the Molex pins, cover it with some heat shrink tubing, and shove the pins in the Molex connectors.
I know this isn't pretty, but it is my test bed. Everything will be nicer when I install it next weekend.