[lacnog] Google DNS from South America
Carlos M. Martinez
carlosm3011 en gmail.com
Vie Oct 11 14:47:25 BRT 2013
I've configured a cacti ping probe on 18.104.22.168 and 22.214.171.124, just to see
how it evolves. If I see something interesting from my vantage point (AS
28000), I'll post.
On 10/11/13 3:12 PM, Doug Madory wrote:
> Here's a before/after to 126.96.36.199 from Rio. As with all of the cases in South America we have seen, the traceroute reaches Google's local network and then is re-routed internally back to the US. In the case below, the same Google IP in Brazil is traversed both before and after (188.8.131.52).
> 0 x -1 ms
> 1 x 4.181 ms
> 2 184.108.40.206 ve427.r1.mi.hwng.net 7.857 ms Highwinds Network Group, Inc.
> 3 220.127.116.11 as15169-s2.sp.ptt.br 9.057 ms Núcleo de Inf. e Coord. do Ponto BR - NIC.BR
> 4 18.104.22.168 9.699 ms Google Inc.
> 5 22.214.171.124 9.744 ms Google Inc.
> 6 126.96.36.199 9.906 ms Google Inc.
> 7 188.8.131.52 google-public-dns-a.google.com 10.283 ms Google Incorporated
> 0 x -1 ms
> 1 x 5.527 ms
> 2 184.108.40.206 ve427.r1.mi.hwng.net 17.72 ms Highwinds Network Group, Inc.
> 3 220.127.116.11 as15169-s2.sp.ptt.br 13.985 ms Núcleo de Inf. e Coord. do Ponto BR - NIC.BR
> 4 18.104.22.168 10.505 ms Google Inc.
> 5 22.214.171.124 20.456 ms Google Inc.
> 6 126.96.36.199 143.537 ms Google Inc.
> 7 188.8.131.52 178.19 ms Google Inc.
> 8 184.108.40.206 137.243 ms Google Inc.
> 9 220.127.116.11 google-public-dns-a.google.com 137.921 ms Google Incorporated
> Doug Madory
> 603-643-9300 x115
> Hanover, NH
> "The Internet Intelligence Authority"
> On Oct 10, 2013, at 2:28 PM, Doug Madory <dmadory en renesys.com> wrote:
>> We're not seeing this happen Mexico.
>> I'll grab a couple before and after traceroutes from our data. In each case, the traceroute gets to the local Google presence before it is directed back to the US instead of hitting a local server as it did previously.
>> Doug Madory
>> 603-643-9300 x115
>> Hanover, NH
>> "The Internet Intelligence Authority"
>> On Oct 10, 2013, at 1:05 PM, Octavio Alvarez <alvarezp en alvarezp.ods.org> wrote:
>>> On 10/10/2013 08:14 AM, Doug Madory wrote:
>>>> We have noticed a change in the latencies to Google's public DNS services (18.104.22.168 and 22.214.171.124) coming from locations in South America starting mid-September:
>>>> Have any of the members of the LACNOC community noticed this change?
>>> In Tijuana, Mexico I see it ok. Can you post a traceroute to it (or
>>> better, an mtr)?
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