[dns-operations] First victim of AAAA records in the root zone

Peter Dambier peter at peter-dambier.de
Mon Feb 4 19:20:40 UTC 2008

I remember general DNS issues with a machine that used to have local
IPv6 only but internet only via IPv4.

Whenever a host had both an IPv4 and an IPv6 address DNS would only
query the IPv6 address and finally mark that host as down.

Bind 8 with its negative cache really gave me the willies until I
finally disabled the IPv6 on that machine. No more problems.


Florian Weimer wrote:
> At least the first one I've encountered: "dnstracer -s ." doesn't work
> on IPv6-capable hosts with no global IPv6 routing because it
> unconditionally uses the AAAA record of A.ROOT-SERVERS.NET. 8-)
> Not terribly relevant, of course, but there are likely other DNS tools
> that break when running on hosts which are not fully IPv6-capable, but
> process AAAA records.

Peter and Karin Dambier
Cesidian Root - Radice Cesidiana
Rimbacher Strasse 16
D-69509 Moerlenbach-Bonsweiher
+49(6209)795-816 (Telekom)
+49(6252)750-308 (VoIP: sipgate.de)
mail: peter at peter-dambier.de

More information about the dns-operations mailing list