[dns-operations] Is rs.dns-oarc.net via IPv4 down?

[Mitsuru SHIMAMURA]

Hi, 

It seems like that the IPv4 address of rs.dns-oarc.net's authoritative server is 64.191.0.133.
But, there is no response from 64.191.0.133.
And the IPv6 address, 2620:ff:c000:0:2::133 respond to query.

 $ dig @ns.dns-oarc.net. -t ns rs.dns-oarc.net
 ;; AUTHORITY SECTION:
 rs.dns-oarc.net.	3600 IN	NS ns00.rs.dns-oarc.net.
 
 ;; ADDITIONAL SECTION:
 ns00.rs.dns-oarc.net.	3600 IN	AAAA 2620:ff:c000:0:2::133
 ns00.rs.dns-oarc.net.	3600 IN	A 64.191.0.133

 $ dig @64.191.0.133 -t txt rs.dns-oarc.net | tail -1
 ;; connection timed out; no servers could be reached

 $ dig @2620:ff:c000:0:2::133 -t txt rs.dns-oarc.net | tail -5
 ;; Query time: 498 msec
 ;; SERVER: 2620:ff:c000:0:2::133#53(2620:ff:c000:0:2::133)
 ;; WHEN: Tue Jul 25 16:43:35 JST 2017
 ;; MSG SIZE  rcvd: 4050

Network is reachable.
 $ ping -c 3 64.191.0.133
 PING 64.191.0.133 (64.191.0.133) 56(84) bytes of data.
 64 bytes from 64.191.0.133: icmp_seq=1 ttl=51 time=107 ms
 64 bytes from 64.191.0.133: icmp_seq=2 ttl=51 time=107 ms
 64 bytes from 64.191.0.133: icmp_seq=3 ttl=51 time=107 ms
 
 --- 64.191.0.133 ping statistics ---
 3 packets transmitted, 3 received, 0% packet loss, time 2003ms
 rtt min/avg/max/mdev = 107.707/107.726/107.744/0.379 ms

Is it down only for me?

-- 
Mitsuru SHIMAMURA <simamura at iij.ad.jp>
Internet Initiative Japan, Inc.