[dns-operations] x.arin.net unreachable over IPv6

[Sadiq Saif]

Hi all,

If any ARIN dnsops are listening, came across this while testing a PTR
zone for DNSSEC. Tested the host from multiple locations to rule out a
singular routing issue.

in-addr.arpa to 192.in-addr.arpa: The server(s) were not responsive to
queries over UDP. (2001:500:31::63)

 > mtr -rw x.arin.net
Start: Sat Aug  8 02:24:56 2015
HOST: mab.asininetech.com                  Loss%   Snt   Last   Avg
Best  Wrst StDev
  1.|-- 2600:3c03::8678:acff:fe57:aac1        0.0%    10    0.9   1.2
0.8   2.5   0.3
  2.|-- Vlan479.esd1.mmu.nac.net              0.0%    10    3.6   0.9
0.3   3.6   1.1
  3.|-- e1.1.tbr1.tl9.nac.net                 0.0%    10   12.6   3.7
1.3  12.6   3.5
  4.|-- e1.3.tbr2.tl9.nac.net                 0.0%    10    1.3   1.8
1.3   5.6   1.2
  5.|-- ae-30.r06.nycmny01.us.bb.gin.ntt.net  0.0%    10    2.0   2.6
2.0   5.0   0.8
  6.|-- ae-2.r23.nycmny01.us.bb.gin.ntt.net   0.0%    10    1.8   2.9
1.5   9.1   2.2
  7.|-- ae-9.r22.asbnva02.us.bb.gin.ntt.net   0.0%    10   17.3   8.9
7.4  17.3   3.2
  8.|-- ae-0.r23.asbnva02.us.bb.gin.ntt.net   0.0%    10    7.4   7.6
7.4   8.4   0.0
  9.|-- ae-10.r22.snjsca04.us.bb.gin.ntt.net  0.0%    10   79.4  80.1
79.2  83.6   1.2
 10.|-- ae-36.r02.snjsca04.us.bb.gin.ntt.net 20.0%    10   79.7  78.2
77.9  79.7   0.5
 11.|-- 2001:418:0:5000::109a                70.0%    10   89.7  89.3
89.1  89.7   0.0
 12.|-- ???                                  100.0    10    0.0   0.0
0.0   0.0   0.0

> dig -6 NS 192.in-addr.arpa @x.arin.net

; <<>> DiG 9.9.5-3ubuntu0.4-Ubuntu <<>> -6 NS 192.in-addr.arpa @x.arin.net
;; global options: +cmd
;; connection timed out; no servers could be reached

-- 
Sadiq Saif (AS393949)
https://staticsafe.ca