QUIC traffic throttled on AT&T residential

Thu Feb 20 00:29:59 UTC 2020

On Tue, Feb 18, 2020 at 11:47 PM Daniel Sterling
<sterling.daniel at gmail.com> wrote:
> random-source-port UDP traffic does not impress the AT&T network flow
> control systems, and your DNS traffic becomes unbearably slow (or is

I received a comment that maybe the issue is not AT&T's "core"
network, but rather to do with the NAT device in my house.

Oh, I wish this were the case!

Unfortunately, there is no NAT CPE from AT&T involved:

I've taken AT&T's RG CPE out completely. That device, which otherwise
would indeed be my gateway, is unused on my home network, completely
unpowered and unplugged.

Instead I've got a linux box hooked directly up to the ONT. This works
fine; occasionally I *do* have do reconnect their RG and let it
re-auth to the PON, but once the connection is live, I fully unplug
their RG again, and plug my laptop (spoofing its MAC) back in directly
to the ONT.

The laptop is running ubuntu 19.10, so there should be no artificial
limits. It's running NAT directly from the v4 IP I get from DHCP.

You may have noticed v4 is a theme here. I have nothing against using
v6 -- , I must admit the truth is I have no idea how to make ubuntu
acquire a v6 -- address? block ? I don't even know the right term --
from uverse.

I know v6 works cuz AT&T's device supports it, and openwrt does it out
of the box-- but heck if I know how it works. At the risk of asking
this list for tech support -- does anyone want to ping me off list and
point me in the right direction?? Maybe somebody from Google -- you
can make up for breaking my v4 internet!!

Thanks,
Dan