mailman.nanog.org ?

[Kurt Jaeger]

Hi!

The website is only reachable via v4, but dns announces v6 as well ?

$ any mailman.nanog.org
mailman.nanog.org has IPv6 address 2001:1838::cc5d:d48a
mailman.nanog.org has address 204.93.212.138

but:

traceroute6 to mailman.nanog.org (2001:1838::cc5d:d48a) from 2001:14f8:2:2::1a, 64 hops max, 12 byte packets
 1  gatekeeper-nepintern  0.526 ms  0.286 ms  0.282 ms
 2  core3  0.513 ms  0.483 ms  0.491 ms
 3  2001:14f8:1:1:ffff:ffff:ffff:ffff  6.113 ms  5.750 ms  5.862 ms
 4  LFnet.FRA-12-eth020-372.v6.lambdanet.net  10.726 ms  14.837 ms  9.872 ms
 5  AMS-2-pos300.v6.lambdanet.net  42.095 ms  34.702 ms  40.840 ms
 6  2001:7f8:1::a500:4436:1  35.099 ms  34.987 ms  34.957 ms
 7  ae3-60g.cr1.ams2.nl.nlayer.net  34.972 ms  34.831 ms  34.853 ms
 8  xe-1-3-0-111.cr1.ams2.nl.nlayer.net  34.831 ms  35.306 ms  34.942 ms
 9  unknown.ipv6.scnet.net  35.855 ms  35.868 ms
    unknown.ipv6.scnet.net  35.894 ms
10  unknown.ipv6.scnet.net  185.057 ms
    unknown.ipv6.scnet.net  127.401 ms  85.189 ms
11  unknown.ipv6.scnet.net  178.873 ms
    unknown.ipv6.scnet.net  178.256 ms  214.091 ms
12  unknown.ipv6.scnet.net  176.114 ms
    unknown.ipv6.scnet.net  213.318 ms
    unknown.ipv6.scnet.net  187.660 ms

Similar from RIPE RIS looking glass.

traceroute to 2001:1838::cc5d:d48a (2001:1838::cc5d:d48a), 30 hops max, 40 byte packets
 1  gw.ipv6.dev.nikrtr.ripe.net (2001:67c:2e8:2::1:1)  0.814 ms  0.982 ms  1.121 ms
 2  amsix-501.xe-0-0-0.jun1.bit-1.network.bit.nl (2001:7f8:1::a501:2859:2)  1.898 ms  1.910 ms  1.949 ms
 3  20gigabitethernet1-3.core1.ams1.ipv6.he.net (2001:7f8:1::a500:6939:1)  3.658 ms  3.588 ms  3.620 ms
 4  2001:7f8:1::a500:4436:1 (2001:7f8:1::a500:4436:1)  4.439 ms  4.275 ms  4.382 ms
 5  ae3-60g.cr1.ams2.nl.nlayer.net (2001:590::4516:8bee)  3.881 ms  3.792 ms  3.860 ms
 6  xe-1-3-0-111.cr1.ams2.nl.nlayer.net (2001:590::4516:8b02)  4.023 ms  4.015 ms  4.047 ms
 7  unknown.ipv6.scnet.net (2001:1838::cdea:dcc2)  5.262 ms  5.291 ms  5.330 ms
 8  unknown.ipv6.scnet.net (2001:1838::cdea:ff12)  103.729 ms unknown.ipv6.scnet.net (2001:1838::cdea:dcc9)  5.194 ms  5.493 ms
 9  unknown.ipv6.scnet.net (2001:1838::cdea:ff12)  103.796 ms unknown.ipv6.scnet.net (2001:1838::4b66:3e9)  109.000 ms  109.440 ms
10  unknown.ipv6.scnet.net (2001:1838::4b66:3e9)  109.204 ms unknown.ipv6.scnet.net (2001:1838:2000::4b66:42)  128.785 ms  129.019 ms
11  * unknown.ipv6.scnet.net (2001:1838:2000::4b66:42)  129.432 ms *
12  * * *
13  * * *

Any ideas ?

-- 
pi at opsec.eu            +49 171 3101372                         9 years to go !