Help with port forwarding...

[pizzahotline]

Hey folks,

I've been able to play PSO and Quake with no problems for a while now but every time I try to play other games online (Chu Chu Rocket, Planet Ring, Alien Front Online) I am able to connect but get kicked out as soon as the game starts. From reading other posts in this forum I understand that this is a DMZ or port forwarding issue. I tried configuring DMZ with my Dreamcast's IP address, then doing a reset of the PI and router with no joy. I then turned off DMZ and attempted to port forward all the games but I'm having trouble with which numbers to put in which boxes. I've attached a screen shot below of me attempting to port forward for Chu Chu. Perhaps someone with better networking knowledge knows which numbers to put in which boxes?

Do I leave the WAN host IP boxes with 0s in them?
do I need to have the same number 9789 in all four of the boxes at the bottom?
Is it correct for me to have my dreamcast's IP in the LAN Host box?

Thanks for any help. I really appreciate it