[Freeswitch-users] NAPTR and TCP transport

Mon Nov 9 23:15:01 MSK 2015

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
> > >>
> > >>
> > >>
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> > >>
> > >>
> > >>
> > >>
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> > >
> _________________________________________________________________________
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> > >
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> >
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> >
> > --
> > Brian West
> > brian at freeswitch.org
> >
> >
> >
> > Twitter: @FreeSWITCH , @briankwest
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> > 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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> >
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> >
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> >
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>
> _________________________________________________________________________
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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

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