[SR-Users] Issue with 4.2.0 and nathelper and/or rtpproxy
Daniel-Constantin Mierla
miconda at gmail.com
Mon Dec 1 11:59:55 CET 2014
Hello,
didn't get the time to look at the INVITE trace before, checked it now
and indeed, there was an issue revealed by the extension of
received_test() function to check the presence of rport parameter. The
issue was there with the presence of received parameter in Via, but that
was not common and thus this testing function was ok for most of the case.
I just pushed patches to fix it in master, 4.2 and 4.1 branches. Let me
know if works as expected now.
Cheers,
Daniel
On 27/11/14 19:30, Igor Potjevlesch wrote:
>
> Hello Daniel,
>
>
>
> Did you see something with the SIP message?
>
>
>
> Regards,
>
>
>
> Igor.
>
>
>
> *De :*Igor Potjevlesch [mailto:igor.potjevlesch at gmail.com]
> *Envoyé :* lundi 24 novembre 2014 19:43
> *À :* 'Daniel-Constantin Mierla'
> *Cc :* 'Kamailio (SER) - Users Mailing List'
> *Objet :* RE: [SR-Users] Issue with 4.2.0 and nathelper and/or rtpproxy
>
>
>
> Hello Daniel,
>
>
>
> Here is the SIP message:
>
> […]
>
>
>
> I can confirm that the issue is present with 4.2.1 too.
>
> No problem with 4.1.4.
>
>
>
> The SIP message and the configuration are the same in both cases.
>
>
>
> Thank you.
>
> Regards,
>
>
>
> Igor.
>
>
>
> *De :*sr-users-bounces at lists.sip-router.org
> <mailto:sr-users-bounces at lists.sip-router.org>[mailto:sr-users-bounces at lists.sip-router.org
> <mailto:sr-users-bounces at lists.sip-router.org>] *De la part de*
> Daniel-Constantin Mierla
> *Envoyé :* vendredi 21 novembre 2014 11:59
> *À :* Kamailio (SER) - Users Mailing List
> *Objet :* Re: [SR-Users] Issue with 4.2.0 and nathelper and/or rtpproxy
>
>
>
> Hello,
>
> the commits you refer to were not related to nat_uac_test() function.
>
> Can you send the sip message for which you used the test and is
> different than in the old versions?
>
> Cheers,
> Daniel
>
> On 21/11/14 11:16, Igor Potjevlesch wrote:
>
> Hello,
>
>
>
> Just to let you know that I tried also with 4.2.1 and the issue is
> the same.
>
> Regards,
>
>
>
> Igor.
>
>
>
> *De :*Igor Potjevlesch [mailto:igor.potjevlesch at gmail.com]
> *Envoyé :* jeudi 20 novembre 2014 17:00
> *À :* 'Kamailio (SER) - Users Mailing List'
> *Objet :* RE: [SR-Users] Issue with 4.2.0 and nathelper and/or
> rtpproxy
>
>
>
> Hello,
>
>
>
> No one has experienced the same issue or similar until 4.2.0?
>
> Regards,
>
>
>
> Igor.
>
>
>
> *De :*Igor Potjevlesch [mailto:igor.potjevlesch at gmail.com]
> *Envoyé :* mercredi 19 novembre 2014 12:29
> *À :* 'Kamailio (SER) - Users Mailing List'
> *Objet :* RE: [SR-Users] Issue with 4.2.0 and nathelper and/or
> rtpproxy
>
>
>
> Hello,
>
>
>
> I reviewed the changelogs.
>
> I can see the following updates that could change the previous
> behaviour:
>
>
>
> commit 42897d422b60edeac393201326a3e71318445e62
>
> Author: Daniel-Constantin Mierla <miconda at gmail.com
> <mailto:miconda at gmail.com>>
>
> Date: Mon Sep 22 22:04:39 2014 +0200
>
>
>
> core: add received parameter to via if rport parameter is present
>
>
>
> - required by RFC3581, section 4.
>
>
>
> (cherry picked from commit
> a1e96cbd5a3b43598c59cb50693e6b739801b804)
>
>
>
> commit a52c0024723a59d90c3c3966d5deadaf8b0d4440
>
> Author: Daniel-Constantin Mierla <miconda at gmail.com
> <mailto:miconda at gmail.com>>
>
> Date: Sun Sep 28 12:48:53 2014 +0200
>
>
>
> core: helper functions to get addr and port to be used in
> signaling from socket info
>
> (cherry picked from commit
> c725f1dec14863e069bfd1e5c26857a1005528d5)
>
>
>
> But I can't explain why the same nat_uac_test doesn't behaves the
> same between the two versions.
>
>
>
> Regards,
>
>
>
> Igor.
>
>
>
> *De :*Igor Potjevlesch [mailto:igor.potjevlesch at gmail.com]
> *Envoyé :* mardi 18 novembre 2014 14:00
> *À :* amit at avhan.com <mailto:amit at avhan.com>; 'Kamailio (SER) -
> Users Mailing List'
> *Objet :* RE: [SR-Users] Issue with 4.2.0 and nathelper and/or
> rtpproxy
>
>
>
> Hi Amit,
>
>
>
> The config is the same between the two version. Even this line.
>
>
>
> Regards,
>
>
>
> Igor.
>
>
>
> *De :* sr-users-bounces at lists.sip-router.org
> <mailto:sr-users-bounces at lists.sip-router.org>
> [mailto:sr-users-bounces at lists.sip-router.org] *De la part de*
> Amit Patkar
> *Envoyé :* mardi 18 novembre 2014 13:16
> *À :* sr-users at lists.sip-router.org
> <mailto:sr-users at lists.sip-router.org>
> *Objet :* Re: [SR-Users] Issue with 4.2.0 and nathelper and/or
> rtpproxy
>
>
>
> Hi
>
> You should compare this line in your configuration file.
>
> if (nat_uac_test("*18*")) {
>
> It may be using different parameters.
>
> *Regards,*
>
> Amit
>
>
>
>
> On 11/18/2014 5:23 PM, Igor Potjevlesch wrote:
>
> Hello,
>
>
>
> I can reproduce the issue on a pre-production system.
>
> So, I downgraded to 4.1.5.
>
>
>
> Here is the difference:
>
> The INVITE comes into NATDETECT:
>
>
>
> route[NATDETECT] {
>
> xlog("ENTERING NATDETECT routes\n");
>
> #!ifdef WITH_NAT
>
> force_rport();
>
> if (nat_uac_test("18")) {
>
> if (is_method("REGISTER")) {
>
> fix_nated_register();
>
> } else {
>
> add_contact_alias();
>
> }
>
> setflag(FLT_NATS);
>
> xlog("NAT_UAC_TEST OK\n");
>
> }
>
> #!endif
>
> return;
>
> }
>
>
>
> With Kamailio 4.2.0, the NAT_UAC_TEST returns true whereas
> with 4.1.5 returns false.
>
>
>
> I also look at the “force_rport”. I’m not sure if it’s
> related, but with 4.2.0, the Via looks like:
>
> Via: SIP/2.0/UDP
> PST_GW:5060;received=PST_GW;rport=5060;branch=z9hG4bK-34d5-1416308856-4847-441\r\n
>
>
>
> In 4.1.5:
>
> Via: SIP/2.0/UDP
> PST_GW:5060;rport=5060;branch=z9hG4bK-2e3d-1416311184-4886-146\r\n
>
>
>
> The received parameters is not added. Note that PSTN_GW refers
> to a public IP address (out of RFC1918 and Carrier Grade NAT).
>
>
>
> Regards,
>
>
>
> Igor.
>
>
>
> *De :*Igor Potjevlesch [mailto:igor.potjevlesch at gmail.com]
> *Envoyé :* mardi 18 novembre 2014 11:43
> *À :* sr-users at lists.sip-router.org
> <mailto:users at lists.sip-router.org>
> *Objet :* Issue with 4.2.0 and nathelper and/or rtpproxy
>
>
>
> Hello,
>
>
>
> Since I done the upgrade of Kamailio into 4.2.0, there are, at
> least, one new case where the RTPProxy is launched.
>
>
>
> When I got an INVITE from my PSTN Gateway, for unknown reason
> (and not for all calls), Record-Route is append with nat=yes.
> I looked into an old trace and this behaviour didn’t exist.
>
>
>
> What could have changed that can explain this?
>
>
>
> Regards,
>
>
>
> Igor.
>
>
>
>
>
>
>
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>
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>
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>
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>
>
>
>
>
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>
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>
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>
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>
>
>
> --
> Daniel-Constantin Mierla
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda
--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
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