SRTP Error "auth check failed"
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, today a colleague of mine told me that sometimes calls were disconnected without any obvious reasons. In FS's log I found this: 2009-05-07 15:52:22 [ERR] switch_rtp.c:1656 rtp_common_read() Error: SRTP unprotect failed with code 7 (auth check failed) I scanned my recent FS log files for that message and found that this error accours a few times a week. I use Snom Phones all with G722 and SRTP. Any ideas what this could be caused by? regards helmut -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) iD8DBQFKAviD4tZeNddg3dwRAsdMAKCXJDpum3gEUZTzQDiUgAQ4NBlE/gCgq4WI bJb0huN3fRPyVHhra1vPyAQ= =5sqH -----END PGP SIGNATURE-----
Were they on hold for a bit? /b On May 7, 2009, at 10:04 AM, Helmut Kuper wrote:
I scanned my recent FS log files for that message and found that this error accours a few times a week. I use Snom Phones all with G722 and SRTP. Any ideas what this could be caused by?
Brian West brian@freeswitch.org -- Meet us at ClueCon! http://www.cluecon.com
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello Brian, no, during conversations calls were desconnected. regards Helmut On 07.05.2009 17:09, Brian West wrote:
Were they on hold for a bit?
/b
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello again, I spent some more time investigating the problem. The scenario seems to be always the same: - -Phone A calls Phone B on PSTN (OpenZAP+Sangoma) via FS. - -Call is established and Phone A has a (G722)SRTP connection to FS. - -After a while (e.g. 14 minutes or 11 minutes or 10 minutes) a call comes in for Phone A from Phone C via PSTN - -FS tries to ring Phone A. Phone A response with "User Busy" - -FS sends "User-Busy" via PSTN to Phone C. - -Right after OpenZAP channel to Phone C is down, FS detects a "Error: SRTP unprotect failed with code 7 (auth check failed)" (This happens only if a total of 9 srtp errors occurs before) - -Connection from Phone A to Phone B is unbridged by FS - -PSTN-connection is disconnected with "NORMAL_CLEARING" I analysed a time period of 5 weeks. By now I detect this problem only for exact the scenario I described above. It seems that the problem applies only to call durations >9-10 minutes and of course SRTP. I'm on actual svn trunk. regards helmut On 08.05.2009 11:29, Helmut Kuper wrote:
Hello Brian,
no, during conversations calls were desconnected.
regards Helmut
On 07.05.2009 17:09, Brian West wrote:
Were they on hold for a bit?
/b
_______________________________________________ Freeswitch-users mailing list Freeswitch-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org - -- Mit freundlichen Grüßen Helmut Kuper Finanzdienstleistungen und Entwicklung Telefax: (0441) 8000-2799 mailto:helmut.kuper@ewetel.de ___________________________________ EWE TEL GmbH Cloppenburger Straße 310 26133 Oldenburg EWE TEL GmbH Handelsregister Amtsgericht Oldenburg HRB 3723 Vorsitzender des Aufsichtsrates: Heiko Harms Geschäftsführung: Hans-Joachim Iken (Vorsitzender), Dr. Norbert Schulz, Dirk Thole Homepage: http://www.ewetel.de ___________________________________ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) iD8DBQFKBB8B4tZeNddg3dwRAvS+AJ9GXahzbzggXIxylGVAOWchWM95zwCfdOnC nYikUHUxAp3+2HYrX+A0InI= =7VCf -----END PGP SIGNATURE-----
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello again, a further and last update for today: Facing snom phones with different FWs with this scenario I found that Snom 370 with FW 8.2.2 has no problems, while for Snom 370 with FW7.3.11 (I guess also below) I was able to reproduce the problem. So it seems to be a Snom problem rather that a FS problem. Have a nice weekend. helmut -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) iD8DBQFKBDQ14tZeNddg3dwRAiD2AJ96lswBr0O5puba731QGwIdRBwuNgCfYefX oPfTrAoAl/jFvWCNfcGyYjw= =Y3sC -----END PGP SIGNATURE-----
On Fri, May 8, 2009 at 9:31 AM, Helmut Kuper <helmut.kuper@ewetel.de> wrote:
Facing snom phones with different FWs with this scenario I found that Snom 370 with FW 8.2.2 has no problems, while for Snom 370 with FW7.3.11 (I guess also below) I was able to reproduce the problem. So it seems to be a Snom problem rather that a FS problem.
Have a nice weekend.
helmut
How did you get 8.2.2 for the 370? I did not find it on the firmware wiki page...
Nevermind. I figured it out. It's available as beta on the dms server. http://wiki.snom.com/RSS#Release_candidates_7.3.19_and_8.2.2_can_be_download... On Fri, May 8, 2009 at 10:18 AM, Carlos Talbot <carlos.talbot@gmail.com>wrote:
How did you get 8.2.2 for the 370? I did not find it on the firmware wiki page...
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello Carlos, On 08.05.2009 17:31, Carlos Talbot wrote:
Nevermind. I figured it out. It's available as beta on the dms server.
indeed, it's a beta FW and quite slow compared to FW7.X.X. Look and Feel of internal webpage as well of some keys (like '?') is same as the Snom 820/870 series. regards Helmut -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) iD8DBQFKB/MP4tZeNddg3dwRAlK3AJ46ZxZ/7fhUssbeTjFs4oi7FaKH2ACfQLZB uZ/Wfb1m1Zy7x9w5gM4Yw34= =6lYB -----END PGP SIGNATURE-----
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, I can reproduce the error with Snom 370 and FW 7.3.11. An update to 7.3.20 (beta) seems to solve the problem - at least I can't reproduce it with the metioned scenario anymore. regards helmut -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) iD8DBQFKCDAH4tZeNddg3dwRAs29AKCxFN/193R1D+svIjB+Knzzbuhr1wCfQ4rq hMVg7svm2EoaOOexJS5HCMY= =jhJh -----END PGP SIGNATURE-----
Hello Helmut, I also have problems with my Snom300s and Snom320s and G711 and SRTP. They may be related to this problem, but I am not sure. The phones disconnect the media stream after a while (2..10 minutes) because the Snom media port is blocked all of a sudden. I have opened a bug report at Snom [Ticket#2009040810000131]. Best regards Peter Helmut Kuper schrieb:
Hello,
today a colleague of mine told me that sometimes calls were disconnected without any obvious reasons. In FS's log I found this:
2009-05-07 15:52:22 [ERR] switch_rtp.c:1656 rtp_common_read() Error: SRTP unprotect failed with code 7 (auth check failed)
I scanned my recent FS log files for that message and found that this error accours a few times a week. I use Snom Phones all with G722 and SRTP. Any ideas what this could be caused by?
regards helmut
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participants (4)
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Brian West
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Carlos Talbot
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Helmut Kuper
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Peter P GMX