Static (external) IPs, 3600HGV, and Netgear router
I just had AT&T set up the 8 block external static IPs but I now have no idea how to use them with my devices. I have the 2WIRE 3600HGV and a Netgear WNDR4500 router (using DMZPlus mode) which has been working fine for a couple of years. I only use the RG for modem; not routing. I use port forwarding to access a NAS, security cameras, etc. AT&T has offered absolutely no guidance after purchasing the static IPs. Basically "here you go - bye".
First: should I have received a newer RG from AT&T to make configuration of this easier/possible? I read a number of posts (none very recent) that implied the 2WIRE is/was not the best for use with static IPs. Should I request a newer RG before pulling my hair out trying to configure the 2WIRE for this? The AT&T tech said he had one but didn't give me any reason to swap it. He actually implied the newer models weren't as powerful (referring to their Wi-Fi range I guess).
I'm confused that, although I now have five usable static IPs, my external IP is still showing the one it's always had - not an IP in the static IP range. Can someone please explain that?
I've tried a couple of receommendations but my Netgear cannot access the internet with its IP set to one of the external static IPs. Can anyone provide instructions for configuring my Netgear router and 3600HGV so that I can use *even one* external static IP? My main goal is to access my NAS with an external static IP and still be able to access it on the LAN, of course. Is trying this a waste of time until I get a newer RG?