External Port Forwarding with OpenWRT 12.09

This describes how to forward an external port to an internal server / port in OpenWRT 12.09:

• Click on Network.
  • Click on Firewall.
    • Click on Port Forwards.
      • Scroll down to New port forward
      • Name the port forward appropriately
      • Select the Protocol as required.
      • Select the External zone, normally wan for a service you wish to forward internally.
      • Enter the external port you wish to forward internally
      • Select the Internal zone, normally lan for a service you wish to forward internally.
      • Select the Internal IP address you wish to receive the forward.
      • The Internal port should default to what you put in the external port. Change if required.
      • Press Add.
    • Click on Traffic Rules
      • Scroll down to New forward rule.
      • Enter in an appropriate name for the rule.
      • Select the source, usually wan for inbound forwarding
      • The Destination zone should default to wan. Select wan if it isn't already selected.
      • Press Add and edit....
      • Set an fields here as appropriate, ensure the protocol field is correct.
      • At the very least you will need to set the port, as per the previous step.
      • Press Save & Apply.

You should now be able to test this port foward and it ought to have been successful :-)