Opening specific ports on Leopard's firewall

How can I open a specific port - e.g. 49237 - on Mac OS X 10.5.2 firewall, rather than using the System Preferences GUI which points at apps?
I understand that there is some sort of a Terminal command.
Please advise

Try this.....
Log in with the Username of admin, and the password should be your router's Serial Number found on the bottom of the router on a sticker.

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    Message was edited by: Ben Sciascia

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    Hey,
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    Message was edited by: Russa

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