US Telco Support > AT&T > AT&T U-verse > How to bridge your Motorola 2210-02-1ATT (U-verse IP-DSL)

How to bridge your Motorola 2210-02-1ATT (U-verse IP-DSL)

Might you be possibly confusing the 2210 w/ the NVG510 that most peeps are talking about w/ that prob ?

No, it is (was?) very common for people to ask how to bridge a 2210-02-1ATT (and frequently state that it's not possible). »www.google.com/search?q=2210-02-···dge+mode There were enough people asking about it and stating that it wasn't possible that I was hesitant to buy one (trying to avoid using the NVG510 that I was forced to order with my new U-verse). In my other thread (»My experience switching from AT&T ADSL to U-verse IP-DSL), someone offered to make a guide if I got screenshots for them, so it still seems to be an issue.

I also just found that Motorola even has a guide posted on this. Mine came with 7.8.7r9 and the footer of the page says 2010, so my guess is that this page has been around for a while.
2210-02-1ATT: Public IP Address Sharing
NOTE: This document applies to firmware version 7.8.1r7 and later.

Also note that the NVG510 has IP Passthrough options as well, they just seem to be buggy and not actually work properly. Which seems to fit right in with the rest of the bugs people are reporting with the NVG510... I've got some details in my pre-U-verse thread at »Current status of NVG510 IP Passthrough?.

On the NVG510, Since May IP Passthrough only works with IPv6 turned off and using Static IP Passthrough with the subnet mask of 255.255.0.0.
Using DHCPS IP passthrough will fail as it assigns 255.255.255.255 for the subnet mask and IPv6 just kills it for from reason.

How did you get them to activate the 2210-02-1ATT instead of having to use the NVG510 they sent you???
I might have to get one on ebay to replace this NVG510 crap if ATT will activate it on my account which previously they refused to do for me.
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...brought to you by Carl's Jr.

reply to r81984
Nobody seems to know for sure exactly how AT&T's authentication system works, but ILpt4U's description seems to be accurate based on the little bit that I've seen, and what I'd expect from AT&T.

Many houses have cable hookups even without active service, so it probably wouldn't be too hard to steal internet with your own cable modem the way some people steal cable TV. DSL doesn't seem to be as susceptible to that sort of thing, as it requires more work on their end to actually set up a DSL connection to your home. My guess is that AT&T figures it's good enough if you have a modem with the proper AT&T firmware and your line is actively connected to their service, therefore they don't need to track modem details like the cable companies do.

My NVG510 had the serial number and I think the MAC address on a label on the outside of the box, the way many electronics do now. However, the service installation procedures did not include anything specific to that modem's numbers or any sort of special activation process. It was actually easier than my ADSL setup, as I didn't have to enter PPPoE credentials - just plug it in and wait for the lights to turn green. It's possible that they record the modem's details before shipping it out and link it to your account, but my guess is that they don't. When I called for the RMA on my NVG510, the rep didn't react at all when I said I already had a U-verse modem and just wanted to return the unused, unneeded NVG510. While I generally don't put a whole lot of faith in first-level phone reps, this reinforces my belief that there's no special link between the specific modem they send you and your account.

I think the lines about it only working with the modem they send you are more to avoid people buying the wrong kind of modem (for example, the old 2210-02 or a U-verse VDSL modem) that won't work with U-verse IP-DSL. I don't think it's even possible to buy a U-verse IP-DSL modem retail, so there's probably no "official" way to buy a brand new U-verse modem outside of AT&T anyway. While buying a used 2210-02-1ATT on eBay from a former U-verse customer may work perfectly well, AT&T most likely doesn't want to support all the clueless users who would try to do that (and fail to get the proper modem).

It makes sense that all the access/authentication/speed is set at your port on the DSLAM so you don't have to keep unplugging cables or need any active authentication.
When every house is on uverse you would save all the CO labor by not having to plug in and unplug cables. The phone rep can switch on and off the port and set the speed profile.

If it is set by the ports then I wonder why all the phone reps say you cant use a used modem and must always buy a new one from them.
They now charge for unsupported equipment calls so its not a waste of their money if they have to troubleshoot someone buying the wrong modem.
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...brought to you by Carl's Jr.

reply to InvisiBill
I got a 2210 and it works.
I laugh that people were confused at how to bridge it.
It took 2 seconds to figure out to check "Yes, use public IP address".
--
...brought to you by Carl's Jr.