I am not a server person, or IT professional. I am a software designer who has been thrown into this position for a temporary period until someone can be hired permanently.
My question is more of a general one, I'm trying to figure out how a client has their network setup so I can help them forward some ports (as required by our product).
The client has multiple public IP addresses. (for simplicity we will call them 220.127.116.11 through 18.104.22.168), and claims to have a single AT&T 2WIRE modem. His ISP has come and setup a device to be publicly accessible via 22.214.171.124, and the client wants our device on 126.96.36.199
I have no idea how a single modem would be able to support/server multiple public IPs, and furthermore how I would forward off port(s) to a specific one. Is there any good free articles I could read? Is the client wrong in their claim to have a single modem? I have a Bell 2WIRE modem here in the office to play around with, but as far as I can see in the options it only allows me to have a single public ip. I'm confused, please can anyone help steer me in the right direction?