[Dnsmasq-discuss] NXDOMAIN instead of NODATA-IPv6

[Simon Kelley]

On 13/09/14 09:10, e9hack wrote:
> Hi,
> 
> I'm using dnsmasq for DHCP and DHCPv6. Name resolution doesn't work on a Windows8 PC for a
> IPv4 only host on LAN, but it works for IPv4 only hosts on WAN.
> 
> If I compare the log entries, the answer of an AAAA query for a host on LAN is NXDOMAIN
> and for a host on WAN NODATA-IPv6.
> 
> daemon.info dnsmasq[24299]: started, version 2.72rc1 cachesize 150
> daemon.info dnsmasq[24299]: compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN
> DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth DNSSEC loop-detect
> daemon.info dnsmasq[24299]: DNSSEC validation enabled
> 
> daemon.info dnsmasq[24299]: query[A] vbox-linux.lan from 192.168.102.2
> daemon.info dnsmasq[24299]: /tmp/hosts/dhcp vbox-linux.lan is 192.168.102.50
> daemon.info dnsmasq[24299]: query[AAAA] vbox-linux.lan from 192.168.102.2
> daemon.info dnsmasq[24299]: config vbox-linux.lan is NXDOMAIN
                              ^^^^^^

Hmm, I wonder where this is comming from.

Hartmut, please could you provide the config you're using, either on the
list, or direct to me?


You're right that this shouldn't be NXDOMAIN, but I need to find the
code-path which allows this.



Cheers,

Simon.


> 
> daemon.info dnsmasq[24299]: query[A] www.thoralt.de from 192.168.102.2
> daemon.info dnsmasq[24299]: cached www.thoralt.de is 79.140.41.184
> daemon.info dnsmasq[24299]: query[AAAA] www.thoralt.de from 192.168.102.2
> daemon.info dnsmasq[24299]: cached www.thoralt.de is NODATA-IPv6
> 
> Windows8 seems to cache negative replies. The first access to the local IPv4 only host
> works, all following access fail. The access works again for one time, if the DNS cache is
> flush manually.
> 
> Regards
> Hartmut
> 
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