This is my setup.My internet is supplied by BT ireland. I use a voager 210 ADSL modem. This is connected by ethernet to a D-Link router (DIR-301).I have a pc connected to this by ethernet and a pc Laptop connected by wifi - not really relevant.My playstation3 is connected to the D-Link through wifi.The problem.I have a NAT issue with my ps3. i want to either open up IP ports to the ps3 or put it in a Demiliterised Zone.Assuming i'm putting it in a DMZ, should i put the ps3 in a DMZ on my router and my modem. or should I put my ps3 in a DMZ on my router and put my router in a DMZ on my modem.i know the security risks of this but i'm still curious of how this setup works.also, if someone could give me information specific to this modem>router>ps3 setup i would really appreciate it.PS can my ISP help me in any way?thanks guysDMZ was just an example.if i use port forwarding. do i forward from by modem and my router to my ps3s IP address.or do i forward ports from my modem to my router, then from my router to my ps3