[Freeswitch-users] NAPTR and TCP transport

Mon Nov 9 19:59:19 MSK 2015

the user at domain is a remote SIP URI, and the DNS points to port 5080 on the
remote server.

Here's sofia loglevel 9. It receives two NAPTR records, and takes the one
for SIP. It prints "tport not used" -- probably that's the clue why it
doesn't try to use TCP.

sres.c:3572 sres_log_response() sres_resolver_receive(0x17af08, 0x1a3ff8)
id=36650 (from [10.1.31.38]:53)
nta.c:10465 outgoing_answer_naptr() nta: demo.voxserv.net. IN NAPTR 100 100
"S" "SIP+D2T" "" _sip._tcp.demo.voxserv.net. (tport not used)
nta.c:10465 outgoing_answer_naptr() nta: demo.voxserv.net. IN NAPTR 110 100
"S" "SIP+D2U" "" _sip._udp.demo.voxserv.net.
sres_cache.c:272 sres_cache_get() sres_cache_get(0x164408, SRV, "_sip._
udp.demo.voxserv.net.") called
sres_cache.c:318 sres_cache_get() sres_cache_get(0x164408, SRV, "_sip._
udp.demo.voxserv.net.") returned 1 entries
nta.c:10598 outgoing_query_srv() nta: for "demo.voxserv.net" query "_sip._
udp.demo.voxserv.net." SRV (cached)
nta.c:10694 outgoing_answer_srv() nta: _sip._udp.demo.voxserv.net. IN SRV
10 0  5080 ph02.trrtrr.net. (udp)

On Mon, Nov 9, 2015 at 5:36 PM, Brian West <brian at freeswitch.org> wrote:

> sofia loglevel all 9, watch the debug, is user at domain locally registered
> or a remote user/domain?
>
> On Mon, Nov 9, 2015 at 9:45 AM, Stanislav Sinyagin <ssinyagin at gmail.com>
> wrote:
>
>> the records are actually documented here, and you can feel free to
>> send calls to these extensions:
>> http://voxserv.ch/demolab.html
>>
>> The "tdemo.voxserv.net" points to the same service, but for TCP only.
>>
>>
>>
>>
>> On Mon, Nov 9, 2015 at 4:00 PM, Lawrence Conroy <lconroy at insensate.co.uk>
>> wrote:
>> > Hi there,
>> >  from experience of running NAPTR record interops, it was common for
>> libraries/apps to ignore the "weights" and just take the first record in
>> the DNS message.
>> > [I don't have recent fS source to hand to check].
>> >
>> > More interesting is your comment that, with a single NAPTER, fS
>> silently fails.
>> > Perhaps give an example by removing the 100/110 udp NAPTR (just leaving
>> the tcp NAPTR)?
>> > [and flushing the fS local DNS cache, of course :]
>> >
>> > all the best,
>> >   Lawrence
>> >
>> >
>> > On 9 Nov 2015, at 13:17, Stanislav Sinyagin <ssinyagin at gmail.com>
>> wrote:
>> >
>> >> $ dig naptr demo.voxserv.net
>> >>
>> >> ; <<>> DiG 9.8.4-rpz2+rl005.12-P1 <<>> naptr demo.voxserv.net
>> >> ;; global options: +cmd
>> >> ;; Got answer:
>> >> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19044
>> >> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0
>> >>
>> >> ;; QUESTION SECTION:
>> >> ;demo.voxserv.net.              IN      NAPTR
>> >>
>> >> ;; ANSWER SECTION:
>> >> demo.voxserv.net.       600     IN      NAPTR   110 100 "S" "SIP+D2U"
>> "" _sip._udp.demo.voxserv.net.
>> >> demo.voxserv.net.       600     IN      NAPTR   100 100 "S" "SIP+D2T"
>> "" _sip._tcp.demo.voxserv.net.
>> >>
>> >> ;; Query time: 206 msec
>> >> ;; SERVER: 91.214.168.168#53(91.214.168.168)
>> >> ;; WHEN: Mon Nov  9 14:17:30 2015
>> >> ;; MSG SIZE  rcvd: 144
>> >>
>> >>
>> >>
>> >>
>> >> On Mon, Nov 9, 2015 at 1:41 PM, Brian West <brian at freeswitch.org>
>> wrote:
>> >> You're in a NAPTR records may be incorrect, example pleas
>> >>
>> >>
>> >> On Monday, November 9, 2015, Stanislav Sinyagin <ssinyagin at gmail.com>
>> wrote:
>> >> If I specify a bridge destination as "sofia/external/USER at DOMAIN", and
>> >> that domain has a NAPTR record specifying TCP transport as more
>> >> preferred, FreeSWITCH is still sending a UDP INVITE.
>> >>
>> >> If the domain has only a NAPTR record for TCP transport, the call
>> >> fails without sending any INVITE.
>> >>
>> >> It works with TCP if I add ";transport=tcp" to the bridge string.
>> >>
>> >> does this look like a bug, or it was set so with some reason?
>> >>
>> >>
>> _________________________________________________________________________
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>> >>
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>> >>
>> >>
>> >> --
>> >> Brian West
>> >> brian at freeswitch.org
>> >>
>> >>
>> >>
>> >> Twitter: @FreeSWITCH , @briankwest
>> >> http://www.freeswitchbook.com
>> >> http://www.freeswitchcookbook.com
>> >>
>> >> Got Bugs? Report them here! | Reddit: /r/freeswitch
>> >>
>> >> T:+19184209001 | F:+19184209002 | M:+1918424WEST (9378)
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>> >>
>> >>
>> >>
>> >>
>> _________________________________________________________________________
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>> >>
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>> _________________________________________________________________________
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>> >> http://www.freeswitchsolutions.com
>> >>
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>> >
>> >
>> >
>> _________________________________________________________________________
>> > Professional FreeSWITCH Consulting Services:
>> > consulting at freeswitch.org
>> > http://www.freeswitchsolutions.com
>> >
>> > Official FreeSWITCH Sites
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>> >
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>>
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>>
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>>
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>>
>
>
>
> --
>
> *Brian West*
> brian at freeswitch.org
>
>
> *Twitter: @FreeSWITCH , @briankwest*
> http://www.freeswitchbook.com
> http://www.freeswitchcookbook.com
>
> Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit:
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>
> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>
> _________________________________________________________________________
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>
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