Two PS3 consoles might be a problem.
Let's see if you can get one to work and then you can try to get two to work.
Take one of them out of the loop until later.
As best as I can tell these are the ports that will need to be forwarded
TCP: 80, 443, 5223
UDP: 3478, 3479, 3658
Each port will need to be forwarded seperately and have a unique name for the Custom Service. UDP ports 3478 and 3479 can be done as a range with 3478 being the base port.
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There may be a problem with port 80. Read more about this on page 119.
As best as I can remember there is no way to reassign the port number from within the GUI and this will have to be done through the CLI with a telnet session.
Internal Servers
Your Gateway ships with an embedded Web server and support for a Telnet session, to allow ease of use for configuration and maintenance. The default ports of 80 for HTTP and 23 for Telnet may be reassigned. This is necessary if a pinhole is created to support applications using port 80 or 23.
Web-HTTP Port: To reassign the port number used to access the Netopia embedded Web server, change this value to a value greater than 1024. When you next access the embedded Netopia Web server, append the IP address with , (e.g. Point your browser to »
http://210.219.41.20:8080)
Telnet Port: To reassign the port number used to access your Netopia embedded Telnet server, change this value to a value greater than 1024. When you next access the Netopia embedded Telnet server, append the IP address with , (e.g. telnet 210.219.41.20:2323)
The internal web or telnet server can be disabled by setting the port to 0. To allow for further configuration, only one of these servers can be disabled at a time.
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Static NAT and IP passthorugh can not be used at the same time.
You mat need to disable UPnP on the Netopia.