[dns-operations] glitch on [ip6|in-addr].arpa?

Viktor Dukhovni ietf-dane at dukhovni.org
Wed Oct 9 21:41:43 UTC 2019

On Wed, Oct 09, 2019 at 10:46:11PM +0200, A. Schulze wrote:

> while debugging a PTR resolution problem I noticed warnings on
> http://dnsviz.net/d/ip6.arpa/dnssec/ and
> http://dnsviz.net/d/in-addr.arpa/dnssec/
> To me, it looks like some in-addr-servers.arpa servers are unable to handle large responses.

No, even small responses receive no answers from the IPv6 addresses
of the C and F roots.  Both of the below time out even though I'm
not setting the "DO" bit:

    $ dig -6 +norecur -t soa arpa. @2001:500:2f::f
    $ dig -6 +norecur -t soa arpa. @2001:500:2::c

Looks like an outage from my vantage point.


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