[ATannahill]

When you connect to the field, the field AP will act as a DHCP server and dish out addresses.

When you are in the pit the driver station and roboRIO assign themselves a link local address when they cannot find a DHCP. The roboRIO sends out a mDNS notice saying that it is at what ever address it assigned itself and the driver station can receive and understand it to know how to talk to the roboRIO.