[dns-operations] CloudFlare public DNS IPv6 anycast high latency from HE in USA?

Viktor Dukhovni ietf-dane at dukhovni.org
Mon Feb 22 22:33:34 UTC 2021


For CloudFlare public DNS IPv6 addresses:

	2606:4700:4700::1111
	2606:4700:4700::1001

I see unexpectedly high latency from two distinct networks in the USA,
where the common factor is plausibly an early transit via Hurricane
Electric.  From both networks (isi.edu in LA, and my home network in
NYC) these addresses appear to be routed to the Far East at 200+ms
latency (aparently to Thailand!).  Anyone else seeing similar results?
I think this is a recent change (perhaps a few days now)...  Not sure
whom to nag (I did ping Olafur et. al.), but perhaps the problem is
at HE or elsewhere?

LA (isi.edu):
-------------
$ traceroute6 -f4 -n 2606:4700:4700::1111
 4  2001:468:e00:801::2  0.999 ms  0.928 ms  0.851 ms
 5  2001:470:0:72::2  0.770 ms *  0.734 ms
 6  2001:470:0:523::2  107.197 ms  107.604 ms  107.601 ms
 7  2001:470:0:3f0::1  175.046 ms  174.557 ms  175.149 ms
 8  2001:470:1:be2::2  205.189 ms  205.306 ms  205.217 ms
 9  2403:d300:400:4000::1  204.082 ms  204.022 ms  204.017 ms
10  2404:8d04:4840:4001::3  204.962 ms  204.769 ms  204.907 ms
11  2400:cb00:175:1024::a29e:cd15  202.823 ms 2400:cb00:175:1024::a29e:cd1d  202.870 ms 2400:cb00:175:1024::a29e:cd21  202.608 ms

PTR records:
2001:468:e00:801::2 hurricane--lax-hpr-peer.cenic.net
2001:470:0:72::2 100ge14-1.core1.lax2.he.net
2001:470:0:523::2 100ge5-2.core1.tyo1.he.net
2001:470:0:3f0::1 100ge11-1.core1.sin1.he.net
2001:de8:4::1:89:3 10089.sgw.equinix.com

MaxMinds country GeoIP:
2001:468:e00:801::2: US, United States
2001:470:0:72::2: US, United States
2001:470:0:523::2: US, United States
2001:470:0:3f0::1: US, United States
2001:de8:4::1:89:3: JP, Japan
2403:d300:400:4000::1: HK, Hong Kong
2404:8d04:4840:4001::3: TH, Thailand
2400:cb00:175:1024::a29e:cd1d: TH, Thailand

NYC (Verizon Fios -> HE tunnel):
--------------------------------
$ traceroute6 -f4 -n 2606:4700:4700::1111
 4  2001:470:0:18e::2  30.834 ms  30.221 ms  31.226 ms
 5  2001:470:0:22a::1  92.222 ms  95.435 ms  77.114 ms
 6  2001:470:0:268::2  140.216 ms  143.346 ms  143.987 ms
 7  2001:470:0:3f0::1  283.903 ms  208.104 ms  210.580 ms
 8  2001:de8:4::1:89:3  209.758 ms  209.723 ms  210.285 ms
 9  2403:d300:400:4000::1  237.480 ms  251.551 ms  244.256 ms
10  2404:8d04:4840:4001::3  236.858 ms  241.120 ms  240.160 ms
11  2400:cb00:175:1024::a29e:cd11  240.004 ms
    2400:cb00:175:1024::a29e:cd15  240.900 ms
    2400:cb00:175:1024::a29e:cd21  240.391 ms

PTR records:
2001:470:0:18e::2  100ge14-2.core1.msp1.he.net
2001:470:0:22a::1  100ge11-2.core1.sea1.he.net
2001:470:0:268::2  100ge11-2.core1.tyo1.he.net
2001:470:0:3f0::1  100ge11-1.core1.sin1.he.net
2001:de8:4::1:89:3  10089.sgw.equinix.com

GeoIP:
2001:470:0:18e::2: US, United States
2001:470:0:22a::1: US, United States
2001:470:0:268::2: US, United States
2001:470:0:3f0::1: US, United States
2001:de8:4::1:89:3: JP, Japan
2403:d300:400:4000::1: HK, Hong Kong
2404:8d04:4840:4001::3: TH, Thailand
2400:cb00:175:1024::a29e:cd1d: TH, Thailand
2400:cb00:175:1024::a29e:cd15: TH, Thailand
2400:cb00:175:1024::a29e:cd19: TH, Thailand

-- 
	Viktor.





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