Rubygems access via IPV6

Sean's Avatar


05 Mar, 2019 04:42 PM


I am posting in followup to this thread closed in July 2018 regarding access to install/update rubygems over IPV6:

Is there a place to monitor progress on this? I had not encountered this until my desk was moved to another location where the local dns resolvers are configured (properly) to prefer IPV6 lookups. I have had to reconfigure my workstation so that glibc's getaddrinfo() prefers IPV4 lookups first in order to install/update gems.

It would seem that is publishing AAAA dns records but the webserver is not answering on this address:
$ ping6
PING (2a04:4e42::70)) 56 data bytes
--- ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms

Versus using IPV4:
$ ping
PING ( 56(84) bytes of data.
64 bytes from ( icmp_seq=1 ttl=54 time=25.2 ms
64 bytes from ( icmp_seq=2 ttl=54 time=25.2 ms
--- ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 25.259/25.273/25.287/0.014 ms

Can I suggest that the issue be fixed in one of two ways -
1. stop publishing AAAA dns records
2. configure the servers to answer to IPV6

If there is a better place to track this issue, please post a link that I can check up on every so often. Thank you kindly!

  1. 1 Posted by Domon on 13 May, 2019 05:45 AM

    Domon's Avatar

    I'm experience the same issue.

    I really hope could either support IPv6 or remove the IPv6 DNS record.


    Update: I restarted my computer and it works now. 

    > ping6
    PING6(56=40+8+8 bytes) [...] --> 2a04:4e42::70
    16 bytes from 2a04:4e42::70, icmp_seq=0 hlim=55 time=47.723 ms
    16 bytes from 2a04:4e42::70, icmp_seq=1 hlim=55 time=43.885 ms
    16 bytes from 2a04:4e42::70, icmp_seq=2 hlim=55 time=43.465 ms
    16 bytes from 2a04:4e42::70, icmp_seq=3 hlim=55 time=42.693 ms
    16 bytes from 2a04:4e42::70, icmp_seq=4 hlim=55 time=46.918 ms
  2. Support Staff 2 Posted by sonalkr132 on 13 Jul, 2020 07:47 AM

    sonalkr132's Avatar


    Sorry about the delay in response here. Can you please confirm if this is still an issue? If yes, I would like to forward some debugging info about your host/IP to the Fastly team.

    Thank you for your patience.

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