I am trying to set up a network render server for a 3d application, Cinema 4D, and it requires that the computer has a static ip address. I have a 8 Core 3.0 GHz Mac Pro, a Quad 2.5ghz G5, a Dual 2.0ghz G5 and 2 x 17" laptops. I only want to use the 3 desktop computers my net render. All machines are running Leopard but I am currently using the 8 Core for my C4D work. I want to set up Net Render and use either the 8 Core or the Quad G5 as the Net Server but I am not sure how to do this? I am using a airport extreme as my router, but only the laptops are connected wirelessly. The airport is connected to a cable modem through astound and only has a dynamic IP address. I know that in order to use a computer as the net server you need to have a static IP address. Well all of my desktops have two ethernet ports. Can I have one port be static and the other dynamic? If so I am thinking that I should be able to at least connect the 8 Core and the Quad core to each other through the second ethernet port, correct? If so I am confused about what address to use. The IP address of my router something like 18.104.22.168. The IP address of my 8 Core is 10.0.1.200 and the Quads is 10.0.1.4. If anyone has any ideas on how or if this can be done please let me know.