[Freeswitch-users] NAPTR and TCP transport

Tue Nov 10 02:24:56 MSK 2015

Brian, it doesn't look like there's a dependency on priority and weight:
the domain "tdemo.voxserv.net" has only one NAPTR record, and it's not
taken into account. I will file a jira ticket for this.

sres.c:3572 sres_log_response() sres_resolver_receive(0xb5001798,
0xb5075bd8) id=32124 (from [10.1.31.38]:53)
nta.c:10465 outgoing_answer_naptr() nta: tdemo.voxserv.net. IN NAPTR 100
100 "S" "SIP+D2T" "" _sip._tcp.demo.voxserv.net. (tport not used)
nua_stack.c:271 nua_stack_event() nua(0xb5637938): event r_invite 503 DNS
Error

On Mon, Nov 9, 2015 at 9:15 PM, Brian West <brian at freeswitch.org> wrote:

> Set the priority to 0  (tcp) and 20 (udp), then the weight to 0 on both.
> Then swap the priorities and see if sofia is just dyslexic
>
>
> /b
>
> On Mon, Nov 9, 2015 at 12:01 PM, Lawrence Conroy <lconroy at insensate.co.uk>
> wrote:
>
>> Hi again,
>>  thanks for putting up the tdemo zone.
>> Looking at your log, fS DOES get both NAPTRs and process them in the
>> correct order. fS *is* doing the sorting, as your DNS server appears to
>> round robin randomisation on the records in the DNS. Good news: fS gets and
>> parses the DNS correctly; Bad news: behaviour must be in the bowels of
>> Sofia :/
>> all the best & thanks
>>   Lawrence
>>
>> On 9 Nov 2015, at 16:59, Stanislav Sinyagin <ssinyagin at gmail.com> wrote:
>>
>> > 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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>> > >>
>> > >> --
>> > >> 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)
>> > >> iNUM:+883 5100 1420 9001 | ISN:410*543 | Skype:briankwest
>> > >>
>> > >>
>> > >>
>> > >>
>> _________________________________________________________________________
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>> > >>
>> > >> Official FreeSWITCH Sites
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>> > >>
>> _________________________________________________________________________
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>> > >> consulting at freeswitch.org
>> > >> http://www.freeswitchsolutions.com
>> > >>
>> > >> Official FreeSWITCH Sites
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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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>> >
>> _________________________________________________________________________
>> > Professional FreeSWITCH Consulting Services:
>> > consulting at freeswitch.org
>> > http://www.freeswitchsolutions.com
>> >
>> > Official FreeSWITCH Sites
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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)
>> > iNUM:+883 5100 1420 9001 | ISN:410*543 | Skype:briankwest
>> >
>> >
>> >
>> _________________________________________________________________________
>> > Professional FreeSWITCH Consulting Services:
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>> > http://www.freeswitchsolutions.com
>> >
>> > Official FreeSWITCH Sites
>> > http://www.freeswitch.org
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>> > http://www.cluecon.com
>> >
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>> >
>> _________________________________________________________________________
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>> > http://www.freeswitchsolutions.com
>> >
>> > Official FreeSWITCH Sites
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>> > http://www.cluecon.com
>> >
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>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
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>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
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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:
> /r/freeswitch <https://www.reddit.com/r/freeswitch>
>
> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>
> _________________________________________________________________________
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> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
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>
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