Re: Cloudflare 1.1.1.1 public DNS broken w/ AT&T CPE

[Marty Strong via NANOG <nanog () nanog org>]

Do you have one?

Do you know what is causing it to fail? i.e. IP on internal interface etc.

Regards,
Marty Strong
--------------------------------------
Cloudflare - AS13335
Network Engineer
marty () cloudflare com
+44 7584 906 055
smartflare (Skype)

https://www.peeringdb.com/asn/13335

> On 2 Apr 2018, at 19:24, Rubens Kuhl <rubensk () gmail com> wrote:
>
> D-Link DMG-6661 as well. 
>
>
> Rubens
>
>
> On Mon, Apr 2, 2018 at 12:26 PM, Marty Strong via NANOG <nanog () nanog org> wrote:
> So far we know about a few CPEs which answer for 1.1.1.1 themselves:
>
> - Pace 5268
> - Calix GigaCenter
> - Various Cisco Wifi access points
>
> If you know of others please send them my way so we can investigate.
>
> Regards,
> Marty Strong
> --------------------------------------
> Cloudflare - AS13335
> Network Engineer
> marty () cloudflare com
> +44 7584 906 055
> smartflare (Skype)
>
> https://www.peeringdb.com/asn/13335
>
> > On 2 Apr 2018, at 16:16, Jason Kuehl <jason.w.kuehl () gmail com> wrote:
> >
> > Just like "S3 dependency check day" Thus begins "National 1.1.1.1 change
> > week" I've already around a few peaces of equipment sets with 1.1.1.1
> >
> > On Mon, Apr 2, 2018 at 11:05 AM, Matt Hoppes <
> > mattlists () rivervalleyinternet net> wrote:
> >
> > > Seeing as how 1.1.1.1 isn’t suppose to be routed I’m not surprised this is
> > > causing odd issues.
> > >
> > > > On Apr 2, 2018, at 11:03, Darin Steffl <darin.steffl () mnwifi com> wrote:
> > > >
> > > > I am behind a Calix router at home for my ISP and 1.1.1.1 goes to my
> > > router
> > > > and not any further. When I enter the IP into my browser, it opens the
> > > > login page for my router. So it appears 1.1.1.1 is used as a loopback in
> > > my
> > > > Calix router.
> > > >
> > > > 1.0.0.1 goes to the proper place fine.
> > > >
> > > > On Sun, Apr 1, 2018 at 3:59 PM, Jeremy L. Gaddis <lists-nanog () gadd is>
> > > > wrote:
> > > >
> > > > > Greetings,
> > > > >
> > > > > If anyone at 7018 wants to pass a message along to the correct folks,
> > > > > please let them know that Cloudflare's new public DNS service (1.1.1.1)
> > > > > is completely unusable for at least some of AT&T's customers.
> > > > >
> > > > > There is apparently a bug with some CPE (including the 5268AC). From
> > > > > behind such CPE, the services at 1.1.1.1 are completely unreachable,
> > > > > whether via (ICMP) ping, DNS, or HTTPS.
> > > > >
> > > > > Using the 5268AC's web-based diagnostic tools, pinging 1.1.1.1 returns
> > > > > the following results:
> > > > >
> > > > > ping successful: icmp seq:0, time=2.364 ms
> > > > > ping successful: icmp seq:1, time=1.085 ms
> > > > > ping successful: icmp seq:2, time=1.160 ms
> > > > > ping successful: icmp seq:3, time=1.245 ms
> > > > > ping successful: icmp seq:4, time=0.739 ms
> > > > >
> > > > > RTTs to the CPE's default gateway are, at minimum, ~20 ms.
> > > > >
> > > > > A traceroute (using the same web-based diagnostic tool built-in to the
> > > > > CPE) reports, simply:
> > > > >
> > > > > traceroute 1.1.1.1 with: 64 bytes of data
> > > > >
> > > > > 1: 1.1.1.1(1dot1dot1dot1.cloudflare-dns.com), time=0 ms
> > > > >
> > > > > I haven't bothered to report this to AT&T through the standard customer
> > > > > support channels (for reasons that should be obvious to anyone who has
> > > > > ever called AT&T's consumer/residential technical support) but if anyone
> > > > > at AT&T wants to pass the info along to the appropriate group, it would
> > > > > certainly be appreciated.
> > > > >
> > > > > Thanks,
> > > > > -Jeremy
> > > > >
> > > > > --
> > > > > Jeremy L. Gaddis
> > > > >
> > > > >
> > > > > "The total budget at all receivers for solving senders' problems is
> > > > > $0. If you want them to accept your mail and manage it the way you
> > > > > want, send it the way the spec says to."  --John Levine
> > > >
> > > >
> > > > --
> > > > Darin Steffl
> > > > Minnesota WiFi
> > > > www.mnwifi.com
> > > > 507-634-WiFi
> > > > <http://www.facebook.com/minnesotawifi> Like us on Facebook
> > > > <http://www.facebook.com/minnesotawifi>
> >
> >
> >
> > --
> > Sincerely,
> >
> > Jason W Kuehl
> > Cell 920-419-8983
> > jason.w.kuehl () gmail com