EN2 and EN3

Hey guys,
For some odd reason today when i tried to connect to the internet on campus my computer is now showing three Ethernet adapters. I see the airport and built-in Ethernet like usual but down from there there is a EN2 and EN3, in the network status it claims that the cable for each is connected and that it just can't find an IP. Now i have no cables connected and am just using wireless so i really am clueless as to what this is.

Thanks in advance!