This is the scenario in which it is best to choose “Bridged Mode” on the DSL gateway and set your router to do PPPo E.
To set the gateway to “Bridged Mode”: At this point, your gateway will reboot and you will be unable to access the internet or your gateway.
To access the internet you must connect a router or device capable of initiating a PPPo E session to one of the LAN ports on your gateway and configure it with the correct PPPo E username and password.
Scenario 2: A Range of IPs If you were assigned a range of static IPs by AT&T, then a PPPo E session will never automatically get you one of them.
Setting your gateway to bridged mode is no help here.
Properly setting up a range of static IPs forces us to actually use a router as a router in the strictest sense.
Setting up a range of static IP addresses from AT&T DSL can be a daunting task if you are used to Cox or other ISPs that simply supply you with an IP address to punch into the WAN settings of your router. , SBC), on the other hand, will provide you with an old school DSL modem that must authenticate with their servers via PPPo E before obtaining an IP address on their system.
*Please note that this may only apply to the Louisiana service area for AT&T.
I had to accomplish this same goal for an account in Arkansas and the configuration was completely different even though the hardware was the same.Also note that the following configuration instructions apply only to the firmware of Netopia/Motorola 3346/3347 family DSL Gateways.Other devices will have very similar settings, but may not correlate exactly to the steps outlined below.These instructions also assume that any settings not explicitly addressed herein are set to their default values.Scenario 1: Single Static IP If AT&T assigned you only a single static IP, then this is easy.Whatever device authenticates with AT&T’s servers via PPPo E is assigned that address.