RT-AC56U & IPv6 with AT&T Uverse

[kevinc]

Hi everyone. I am having trouble setting up ipv6 on my router, and nearly every google search takes me to this forum, although I haven't been able to find the exact answer to my question. My uverse modem is a Motorola
NVG510, supplied by AT&T. For the uninitiated, AT&T uses 6rd tunneling. My network is behind the Asus router, stock firmware 3.0.0.4.378_9459.

AT&T modem has IPv6 enabled, and a laptop connected directly to the modem correctly passes any v6 test.

I have tried several combinations of configurations on the ASUS, but haven't found anything yet that will hand connect via ipv6 AND allow clients to autoconfigure correctly.

If I set the ASUS to 6rd Tunnel w/ DCHP, then I can ping ipv6.google.com from the firmware. But clients won't get an IPv6 address.

If I set the ASUS to static IPv6, clients start connecting to it with their own address, but it won't route to the outside internet.

The ASUS is NOT in a DMZ.

If someone has a working configuration, or can help me start troubleshooting correctly, I would really appreciate it.

Thanks!

 

[sfx2000]

Is this Uverse with TV/Dialtone/Broadband?

If so, then the RG has to do the routing for those services, at least for the TV/Dialtone services - so put the RT-AC56U into the RG's DMZ, and it'll work...

 

[kevinc]

Thanks for responding.

No TV, no VOIP. Just internet.

 

[kevinc]

I've decided to leave the 6rd setting enabled for a few hours, and see if anything magically happens. No computers have connect, but I do have this message appearing in the log file now:

May 27 12:11:21 kernel: net_ratelimit: 4 callbacks suppressed
May 27 12:11:21 kernel: Dead loop on virtual device 6rd, fix it urgently!
May 27 12:11:21 kernel: Dead loop on virtual device 6rd, fix it urgently!
May 27 12:11:23 kernel: Dead loop on virtual device 6rd, fix it urgently!
May 27 12:11:27 kernel: Dead loop on virtual device 6rd, fix it urgently!
May 27 12:11:35 kernel: Dead loop on virtual device 6rd, fix it urgently!
May 27 12:11:45 kernel: Dead loop on virtual device 6rd, fix it urgently!

And that repeats a few a times.