Over the past couple of years I've seen many questions asked about port forwarding when their server sits behind a router. There's normally two questions, The concept behind ports & How to do it This article from How To Geek explains ports, internal and external ip addresses and how to do it on a couple of common routers. Enjoy http://www.howtogeek.com/66214/how-...wsletter&utm_medium=email&utm_campaign=180611