godaddy ipv6 nameservers are not reachable

[Mohacsi Janos]

Dear All,

from our AS1955, and  part of the Internet(according to different 
looking glasses) GoDaddy IPv6 nameservers are not reachable.

dns03.domaincontrol.com.      AAAA    2607:f208:207::33
pdns04.domaincontrol.com.      AAAA    2607:f208:303::33

RP/0/RSP0/CPU0:rtr1.vh#traceroute 2607:f208:207::33 
Tue Jun 11 15:04:17.907 CEST

Type escape sequence to abort.
Tracing the route to 2607:f208:207::33

  1  2001:798:1b:10aa::5 2 msec 1 msec 0 msec
  2  2001:798:cc:1b01:1b01::1 1 msec 1 msec 0 msec
  3  2001:798:cc:3301:1b01::5 3 msec 7 msec 3 msec
  4  2001:798:cc:1301:3301::1 7 msec 7 msec 7 msec
  5  2001:798:cc:1301:1401::6 13 msec 14 msec 13 msec
  6  2001:7f8::1b1b:0:1 19 msec 19 msec 25 msec
  7  2001:470:0:1d4::2 28 msec 37 msec 28 msec
  8  2001:470:0:1b1::1 115 msec 126 msec 114 msec
  9  2001:504:0:2::209:1 112 msec 112 msec 145 msec
  10 2001:428::205:171:2:213 194 msec 193 msec 192 msec
  11 2001:428:5802:10::2 183 msec 183 msec 183 msec
  12  ?  *  ?
  13  *  *  ?
  14  *  *  *
  15  *  *



>From RIPE NCC:
traceroute to 2607:f208:207::33 (2607:f208:207::33), 30 hops max, 40 byte 
packets
  1  gw.ipv6.dev.nikrtr.ripe.net (2001:67c:2e8:2::1:1)  0.432 ms  0.411 ms 
0.428 ms
  2  amsix-501.xe-0-0-0.jun1.bit-1.network.bit.nl (2001:7f8:1::a501:2859:2) 
2.306 ms  2.345 ms  2.324 ms
  3  805.ge-0-0-0.jun1.thn.network.bit.nl (2001:7b8:0:325::2)  24.777 ms 
24.388 ms  24.756 ms
  4  * * *
  5  * * *


Not from HE:
core1.fmt1.he.net> traceroute ipv6 2607:f208:207::33

Tracing the route to IPv6 node 2607:f208:207::33 from 1 to 30 hops

   1    22 ms    7 ms   <1 ms 2001:470:0:2d::2
   2    18 ms  104 ms   20 ms 2001:470:0:18d::2
   3     9 ms   39 ms   25 ms 2001:504:0:3::209:1
   4    24 ms   47 ms   27 ms 2001:428::205:171:2:213
   5    25 ms   37 ms   37 ms 2001:428:5802:10::2
   6    *       *       *     ?
   7    *       *       *     ?
   8    *       *       *     ?
   9    *       *       *     ?


However it is working from Nordunet:

traceroute6 to 2607:f208:207::33 (2607:f208:207::33) from 
2001:6b0:1e:1::35, 64 hops max, 12 byte packets
  1  t1fre-ae5-v1.sunet.se (2001:6b0:1e:1::36)  0.540 ms  0.476 ms  0.465 
ms
  2  se-fre.nordu.net (2001:948:0:f051::1)  0.383 ms  0.428 ms  0.377 ms
  3  dk-ore.nordu.net (2001:948:1:2::3)  10.177 ms  9.782 ms  9.756 ms
  4  uk-hex.nordu.net (2001:948:1:8::2)  39.687 ms  39.877 ms  36.170 ms
  5  us-ash.nordu.net (2001:948:1:11::3)  112.198 ms  112.242 ms  112.165 
ms
  6  2001:504:0:2:0:2:6496:1 (2001:504:0:2:0:2:6496:1)  113.408 ms  113.278 
ms  113.210 ms
  7  2607:f208:3:100::1 (2607:f208:3:100::1)  113.022 ms  112.850 ms 
131.426 ms
  8  2607:f208:3:100::102 (2607:f208:3:100::102)  112.813 ms  112.697 ms 
136.299 ms
  9  2607:f208:3:100::102 (2607:f208:3:100::102)  119.837 ms !P  112.665 ms 
!P  112.754 ms !P



Can you help debugging where the routing is misconfgured?

thanks,
Janos Mohacsi