Perhaps this alternative provides an easier place to start. The problem above probably has something to do with details of my setup that I haven't figured out are involved, so my explanation probably doesn't have sufficient information to get advice.
Again, I'll mention that I'm new at this. Lot's of LAN stuff is pretty easy to set up, and I've had a friend who helped me to get started. Knowing that might make it easier to respond to this. I may be failing at something basic.
So, speaking of basic; the tutorial on IP Addresses tells me that, "There are also blocks of IP addresses that are set aside for internal private use for computers not directly connected to the Internet. These IP addresses are not supposed to be routed through the Internet, and most service providers will block the attempt to do so."
OK, so when I CAN run a server ap. on my old computer from my new one, using 192.168.x.xxx, I guess that's only because these two computers are on the same LAN. Apparently (although I haven't tried because these are the two computers I have access to at the moment), no one else outside my LAN can do that.
1. I can run server aps on my old computer from my new one using 192.168.x.xxx. The old computer is running XP Pro and is hard-wired to my router. I cannot run server aps on my new computer from my new one using 192.168.x.xxx. The new computer is running XP Media Center, Norton anti-virus (with Personal Firewall turned off), and is connected to the internet via wireless g with WPA2. It doesn't appear to me that WPA2 has anything to do with the problem This seems to do its job in a way that doesn't interfer with anything.
2. So how can I open up my system so that server aps are available generally over the internet? I've heard something about using the router's IP? Or my modem's IP? Port forwarding to my computer?
Edited by Roger F. Gay, 30 December 2006 - 04:36 AM.