Cloudflare 1.1.1.1 public DNS broken w/ AT&T CPE

Youssef Bengelloun-Zahr bengelly at gmail.com
Tue Apr 3 07:55:20 UTC 2018


Still believe in santa ?   ;-)

Good luck with that.

Best regards.



2018-04-03 8:37 GMT+02:00 Marty Strong via NANOG <nanog at nanog.org>:

> Orange France is known, they just didn’t tell us the exact reason.
>
> They said that if you contact them, they’ll provide you with an official
> explanation.
>
> Regards,
> Marty Strong
> --------------------------------------
> Cloudflare - AS13335
> Network Engineer
> marty at cloudflare.com
> +44 7584 906 055
> smartflare (Skype)
>
> https://www.peeringdb.com/asn/13335
>
> > On 3 Apr 2018, at 07:22, Paul Rolland (ポール・ロラン) <rol at witbe.net> wrote:
> >
> > Hello,
> >
> > On Mon, 2 Apr 2018 16:26:13 +0100
> > Marty Strong via NANOG <nanog at 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.
> >
> > It seems that in France, Orange's Livebox is also using 1.1.1.1 is some
> > way...
> >
> > 215 [6:20] rol at riri:~> traceroute 1.1.1.1
> > traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 60 byte packets
> > 1  * * *
> > 2  * * *
> > 3  * * *
> > 4  * * *
> >
> > 216 [6:20] rol at riri:~> ping 1.1.1.1
> > PING 1.1.1.1 (1.1.1.1) 56(84) bytes of data.
> > 64 bytes from 1.1.1.1: icmp_seq=1 ttl=64 time=0.371 ms
> > 64 bytes from 1.1.1.1: icmp_seq=2 ttl=64 time=0.292 ms
> > ^C
> > --- 1.1.1.1 ping statistics ---
> > 2 packets transmitted, 2 received, 0% packet loss, time 1037ms
> > rtt min/avg/max/mdev = 0.292/0.331/0.371/0.043 ms
> >
> > 217 [6:20] rol at riri:~> traceroute 8.8.8.8
> > traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
> > 1  livebox.home (192.168.1.254)  0.268 ms  0.236 ms  0.263 ms
> > 2  * * *
> > 3  ae102-0.ncidf103.Puteaux.francetelecom.net (193.253.80.138)  1.724
> ms  1.733 ms  1.793 ms
> > ...
> >
> > That IP address is definitely full of magic...
> >
> > Paul
> >
> >
>
>


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