I need help with Port Forwarding. It's the one area in Networking I have a hard time with. Every time I think I have figured it out, I haven't. First question, if I have a DHCP Reservation, does my external IP still change? Ignoring the first question. How do I forward ports if I have a DynDNS address for my IP. For one example I need to forward 8080 for Usenet, so I can use an Android application on my phone. I am using Tomato on a WRT54GL router. I am looking for steps. Which address do I use to forward to, which to use to connect too, etc etc. I had it setup awhile ago, with DynDNS, but my external IP would still keep changing all the time, so it would work when I knew that address. Makes no sense. If I have one thing forwarded and working, and want to do a second thing, do I use the same address? I am hoping these make sense.