We installed DD-WRT on our WRT610N last year. I also have it installed on a WRT160N at home. I'm guessing based on your team number you probably have a 160N.
According to the manual for the 160, it does have DHCP reservation (page 10):
http://homedownloads.cisco.com/downl...0_UG_A-WEB.pdf
For the robot, we have DHCP working for IP addresses 10 and higher, and set up all the control system components per the instructions, so there is no conflict in IP addresses.
The reason we installed DD-WRT was that we wanted to change the netmask given over DHCP so that computers connected wirelessly could talk to multiple robots.