I solved my own problem. (pretty rare, huh? ) Since I didn't know the correct usage of the primary option with ifconfig, I went onto the box through the currently primary interface which I wanted to be the secondary and did an ifconfig interface down. Then I went in on the secondary interface which I wanted to be the primary and brought the other back up. Seems logical that if there are two interfaces and one goes down, the remaining one becomes the primary. Hope this helps someone else in the world