A Guide to Use your own wireless router with AT&T U-Verse's Residential Gateway

Just upgraded or changed from another Internet Service Provider to AT&T U-Verse? Already have your own wireless router/access point? Having trouble trying to figure out how to preserve your existing wireless network and all those settings?

Well worry no more. I am here to guide you through with the setup processes. So let's get started.

I am not responsible for any error or lost caused by this guide. MAKE THE CHANGES AT YOUR OWN RISK. However I've tested it many times and they have been proven working just fine.

Note that this guide is for the 2Wire 3800HGV-B Residential Gateway. I not sure about other models of different RGs so please if you have a different type of RG please refer to the manual. Also, every wireless router/access point is different. I am using my own router here for an example and reference. Do refer to your wireless router/AP's manual accordingly.

In general, there are two ways to hook your existing wireless router to the RG: Using the RG as a modem & Using the wireless router as a "bridge" for the wireless clients.

So which one should you choose? Well, if you have a lot of customized network applications such as a Slingbox, your own VPN/HTTP/What-you-have servers and you'd like to preserve your current wireless network settings, then you should go with the "Using the RG as a modem" method. As for the other method? It's much easier to do. However it will not preserve your customized network applications BUT it will keep the wireless network settings.

Still not clear? Allow me to illustrate. In the first method, "Using the RG as modem", your RG is simply act as a modem. All the network activities such as assigning IP address, control firewall access to all it is nodes and clients and such, are handled by your wireless router. In this method, all your old settings prior to the U-Verse are kept. Thus, the RG would be like acting as a modem and your wireless router is the "Master" of the network.

On the other method, "Using the wireless router as a 'bridge' ", your wireless router is simply actting as a "bridge", connecting the wireless network it created including all the wireless nodes and all the wired nodes that are connected to the router, forwarding all the operations to the RG. Thus, the RG will assign the IP addresses, control firewall access and such.

As you can see here, the RG is actually managing the whole network, as if it is the "master" of the network.

By the way, please don't browse this guideline with your router's connection, since it's divided into multiple pages and if you lose the connection, you might not be able to browse back. I suggest you use a seperate computer that is connected via wired connection (LAN) to the RG so you won't lose the connection while you were doing some changes.

So, pick a method you like to go with:

© 2008, STEVE DU. Please seek permission prior to duplication.