Okay, next question.

This is a rather silly one. I should know the answer to this one.

When we buy a business DSL connection from SBC, they give us five static IP addresses. One of these addresses is what I desire to use for the DMZ.

But I don't understand what's on the SBC setup sheet. This is the piece of paper that the DSL installer technician filled out when installing the DSL line. There are two groups of addresses, arranged in two separate sections. It looks like this:

----------------------------------------------------
Customer's IP's or LAN IP's (For routers):
Static IP addresses:
64.197.129.33
64.197.129.34
64.197.129.35
64.197.129.36
64.197.129.37
Gateway:
64.197.129.38
Subnet Mask:
255.255.255.248

WAN Side (For routers):
IP Address:
69.125.107.154
Subnet Mask:
255.255.255.254
Gateway:
69.125.107.153
----------------------------------------------------
(IP addresses above deliberately changed in the interest of privacy, but it works for this example.)

Now here's the thing. The configuration screen of our DSL router is has the *second* set of numbers plugged into it, the 69.125.107.154 stuff. And I can connect to its port-mapping features from my home by going to 69.125.107.154. It works.

But I have no idea how those five static IP addresses relate to that. Is one of those static IP addresses somehow magically "synonymous" with the currently-working "69." address? Or do I have to throw out the current, working configuration and re-configure the DSL router with the first set of numbers if I want to use those static IPs?

Normally, I'd go into the existing setup screen of one of my working DSL routers that handles multiple static IPs at my job and investigate how those are set up. Somehow that isn't an option any more.