You don't actually have to do any port translation. You only have to turn on port forwarding.
I suggest that you type into "Port Range" the same port you specified as PORT in cfg.ini, "Translate To..." should be your internal IP address (e.g. 192.168.0.1, basically what you specified as HOST) and the trigger port is the same as "Port Range". Try that.
Also, please use spoilers for images.