nanog mailing list archives

Re: DNS Hijacking? - FiOS Northeast


From: Jim Popovitch via NANOG <nanog () nanog org>
Date: Wed, 09 Jan 2019 21:08:48 -0500

On Wed, 2019-01-09 at 18:30 +0000, Phil Lavin wrote:
We are seeing DNS requests for A and AAAA to 8.8.8.8 come back with
erroneous replies resolving to 146.112.61.106 when sent via FiOS
circuits in the northeast. Anyone else seeing issues with DNS on
FiOS in Northeast? Issue started around 12:25 AM ET this morning
and seems to be affecting customers in PA, RI, etc.. 

146.112.61.106 appears to be an Anycast IP served by OpenDNS when
pages are blocked by the Cisco Umbrella service - https://support.ope
ndns.com/hc/en-us/articles/227986927-What-are-the-Cisco-Umbrella-
Block-Page-IP-Addresses-

Are you sure the queries are going to Google 8.8.8.8 and not OpenDNS?

What URL(s) are you seeing this on?

Do you have a traceroute to 8.8.8.8 from an affected site?

You can also do:
 
 
   ~$ dig TXT test.dns.google.com @8.8.8.8
      "Thanks for using Google Public DNS."

hth,

-Jim P.




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