My router (Netgear WNR3500) has a 'Quality of Service' setting on it that allows one to set the priority of certain ports to give them more or less bandwidth. I would like to set it up so that my Squeezebox gets high priority when streaming, so that even if I'm backing up my thesis data to my school server, my music doesn't constantly pause to rebuffer if I'm listening to Pandora or other streaming radio. Does that communication happen on port 9000, or is there another port for incoming streams?

If it matters, I'm running SqueezeCenter 7.3.4 on a Mac Mini with Snow Leopard.