Ethernet port is located on the main unit.
Network Setting menu
This is where you can set up the main units network setting. It is also where you will see what the Gemini has set the IP address to if you are using DHCP setting. Notice that in the picture at the left that the IP address is 192.168.0.150, this is not the default IP address of 192.168.0.111, because it was set by DHCP. There is a web page that describes how to setup and connect your Gemini to your computer. See Connecting To G2