I am trying to figure out how to make my Raspberry Pi 2 B only have one IP address no matter whether it is connected by cable or over a USB WiFi dongle. When I connect the cable I get a different IP from the USB. This is a problem because I am moving my Pi around connecting it to different cables and then the dongle around my house. I am accessing it over SSH so I can't just hostname -I and find the IP. Thanks for any help.