Hello,

I'm trying to run a webserver from my home computer, but my ISP's
system is not cooperating. I have a wireless broadband system, which
is like Wi-Fi on steroids. Anyway, the ISP (BTInet) seems to have a
funny system to run this technology, here is the situation:

I'm using dyndns.org as a dynamic DNS package, as supposedly my IP
address is dynamic, though I have yet to see it change. Their system
shows my IP address as one thing (http://checkip.dyndns.org), as does
nearly any program I use to check it (call it IP1). However, when I
go into my router management panel, I see a different IP address
(IP2), but nowhere is the one reported by other programs. If I take
the IP2, I can use it on any computer on my network, and it directs to
my web site. Good. But if I try from elsewhere, no good. Also, IP1
will not work anywhere. So, I e-mailed the ISP to see if webhosting
was allowed, or they blocked ports, or what:

They reply:

So, I'm guessing that their router is doing the same thing as mine,
i.e. translating from IP1 (which is their router address) to IP2, and
giving my router IP2. Other programs only see the IP of their router,
which is IP1. If so, it is a mirror of my home network, only I do not
have control of port forwarding, etc., as I have set up on my network.

I hope that was clear to someone; maybe there is a workaround? Is it
possible to call an IP within a network, like a nested IP or
something?

Thanks for any help; I can give more detail on request - ISP IP
numbers, etc.

Aaron