Internal Port Forwarding with OpenWRT 12.09

This describes how to simply forward an internal port to Internet in OpenWRT 12.09:

• Click on Network.
  • Click on Firewall.
    • Click on Traffic Rules
      • Scroll down to New forward rule.
      • Enter in an appropriate name for the rule. Appending "- out" is useful.
      • Set the Source zone to lan, usually it's the default already.
      • The Destination zone should default to wan. Select wan if it isn't already selected.
      • Press Add and edit....
        • Set the Protocol as appropriate
        • Check the Source zone is correctly set to lan.
        • Check the Destination zone is correctly set to wan.
        • Set Destination port to the port you wish to allow out.
      • Press Save & Apply.

You should now be able to test this port access out from the lan to the wan and it ought to have been successful :-)