[Dnsmasq-discuss] dnsmasq and freenum.org issue

[Larry Matter]

More information.

I ran wireshark on both the freeswitch and dnsmasq machines.  When going
through dnsmasq, dnsmasq makes the NAPTR query directly to freenum.org -
216.218.159.17, not to the upstream dns server.  It appears never to get a
response.  However, "dig 4.3.2.1.256.freenum.org naptr @216.218.159.179"
does give me the correct response.  So I'm at a loss.

One other peculiarity; I use dnsmasq to give internal LAN IP's to my
machines (e.g., sip.matter.net).  These hostnames also resolve on the
internet to my current dyndns IP via zoneedit.  So having my freeswitch
machine bypass dnsmasq might confuse things when it queries for its own IP
from an outside dns server.

Any advice for next steps?

Thanks!
Larry Matter


>> Something is making queries for A records (IP addresses) there. Do you
>> see something like
>>
>> dnsmasq: query[NAPTR] 4.3.2.1.256.freenum.org from 192.168.1.xxx
>> too?
>
> Here is a better trace:
>
> dnsmasq: query[SRV] _sip._udp.sip.matter.net from 192.168.1.<ip phone>
> dnsmasq: config _sip._udp.sip.matter.net is NXDOMAIN
> dnsmasq: query[A] sip.matter.net from 192.168.1.<ip phone>
> dnsmasq: /etc/hosts sip.matter.net is 192.168.1.<freeswitch>
> dnsmasq: query[NAPTR] 4.3.2.1.256.freenum.org from 192.168.1.<freeswitch>
> dnsmasq: forwarded 4.3.2.1.256.freenum.org to 216.218.159.179
> dnsmasq: query[NAPTR] 4.3.2.1.256.freenum.org from 192.168.1.<freeswitch>
> dnsmasq: forwarded 4.3.2.1.256.freenum.org to 216.218.159.179
> dnsmasq: query[SRV] _sip._udp.sip.matter.net from 192.168.1.<ip phone>
> dnsmasq: config _sip._udp.sip.matter.net is NXDOMAIN
> dnsmasq: query[A] sip.matter.net from 192.168.1.<ip phone>
> dnsmasq: /etc/hosts sip.matter.net is 192.168.1.<freeswitch>
>
>>
>> One posibility, do you have the filterwin2k flag set in the dnsmasq
>> config? It's possible that PTR lookups are involved somewhere in this
>> process, and filterwin2k can interfere with that.
>
> No, I commented that out a while ago as my sip trunk (voicepulse) uses PTR
> records and as you said that was interfering.
>
> Any other ways I can dig deeper?
>
> Thanks!
> Larry Matter
>
>
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