UPnP - Enabled for all these devices (Router, PS3, DNS-323, IP internet radio, Popcorn Hour A110, HP MSS, IP Camera)
DHCP Reservations granted for PS3 and all other network devices (wired of wireless)
Gamerfuel Enabled
DMZ not for the PS3 (given for Slingbox instead, however i don't see much difference)
all devices mentioned here runs on respective latest firmwares and updates.