A couple of years ago I tried to get Untangle to work nicely w/ the PS3 but I eventually gave up. I was fortunate that my ISP provided me with a few static ip addresses so what I ended up doing was placing a switch before the Untangle host and have the PS3 bypass Untangle entirely-- this hack worked perfectly.
However, I now have a need to get the PS3 back on the LAN. I've tried a combination of a few things:
1) Bypass rules - TCP/UDP incoming and TCP/UDP outgoing
2) 1:1 NAT for the PS3
3) both 1 & 2
In all 3 cases, the PS3 is able to obtain an IP address, access the internet but is unable to connect with the PlayStation Network (which has the latest firmware). If I use the PS3 web browser and point to one of the "what is my ip" websites it shows the public 1:1 NAT ip address (in cases 2 & 3, above) or the primary public ip address (case 1 above).
I'm not sure what else I can try or where I can look to find the cause of this. I'd appreciate any advice. Thanks!