[OpenSIPS-Users] sip message enters on bucle

Bogdan-Andrei Iancu bogdan at opensips.org
Wed Apr 4 17:19:04 CEST 2012


Jorge,

the message is not looping, it is retransmitting - it is something 
different. OpenSIPS tries to open a new TCP conn to the destination (as 
there is no existing one), but it fails in timeout as you cannot open a 
TCP conn somewhere behind a NAT.

Regards,
Bogdan

On 04/04/2012 06:06 PM, Jorge Ortea wrote:
>
> Hi Bogdan,
>
> Is correct, Z.Z.Z.Z:5062 is a public adress behind a NAT. I have found 
> that opensips haven't this tcp connection, now this account has 
> changed the public adress.
>
> But the sip messages keeps in the loop. It's like if Opensips is 
> looking for a tcp connection that it hasn't.... ?¿
>
> Thanks.
> Regards.
>
>
> ------------------------------------------------------------------------
> Date: Wed, 4 Apr 2012 17:38:31 +0300
> From: bogdan at opensips.org
> To: darham at hotmail.com
> CC: users at lists.opensips.org
> Subject: Re: [OpenSIPS-Users] sip message enters on bucle
>
> Hi Jorge,
>
> So opensips tries to send the BYE to Z.Z.Z.Z:5062 via TCP (guess based 
> on Route hdrs), but nobody is listening on TCP - is this address 
> pointing behind a NAT ? why is not accepting a new TCP connection.
>
> On the other side, what you can do is to reduce the timeout on TCP 
> connection, so opensips will react sooner:
> http://www.opensips.org/Resources/DocsCoreFcn18#toc78
>
> Regards,
> Bogdan
>
> On 04/04/2012 05:16 PM, Jorge Ortea wrote:
>
>
>     Hi Bogdan,
>
>     Exactly, is ready, OpenSIPS try to reach to destination but now
>     the account 2105 haven't the location:  Z.Z.Z.Z:5062
>
>     In fact, when OpenSIPS try to reach to there, it write in log:    
>     (this account uses TLS signaling)
>
>     Apr  4 10:14:17 alpha02 /usr/local/sbin/opensips[29503]: ::::::
>     BYE - from 911111111 to O2105 - Callid:
>     5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>     <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>     X.X.X.152
>     Apr  4 10:14:18 alpha02 /usr/local/sbin/opensips[29525]: ::::::
>     BYE - from 911111111 to O2105 - Callid:
>     5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>     <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>     X.X.X.152
>     Apr  4 10:14:19 alpha02 /usr/local/sbin/opensips[29497]: ::::::
>     BYE - from 911111111 to O2105 - Callid:
>     5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>     <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>     X.X.X.152
>     Apr  4 10:14:21 alpha02 /usr/local/sbin/opensips[29487]: ::::::
>     BYE - from 911111111 to O2105 - Callid:
>     5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>     <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>     X.X.X.152
>     Apr  4 10:14:25 alpha02 /usr/local/sbin/opensips[29511]: ::::::
>     BYE - from 911111111 to O2105 - Callid:
>     5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>     <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>     X.X.X.152
>     Apr  4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
>     ERROR:core:tcp_blocking_connect: timeout 10 s elapsed from 10 s
>     Apr  4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
>     ERROR:core:tcpconn_connect: tcp_blocking_connect failed
>     Apr  4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
>     ERROR:core:tcp_send: connect failed
>     Apr  4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
>     ERROR:tm:msg_send: tcp_send failed
>     Apr  4 10:14:27 alpha02 /usr/local/sbin/opensips[29503]:
>     ERROR:tm:t_forward_nonack: sending request failed
>
>     Thus, how can i detect and avoid this ??
>
>     Thanks.
>     Regards.
>
>
>     ------------------------------------------------------------------------
>     Date: Wed, 4 Apr 2012 14:56:16 +0300
>     From: bogdan at opensips.org <mailto:bogdan at opensips.org>
>     To: users at lists.opensips.org <mailto:users at lists.opensips.org>
>     CC: darham at hotmail.com <mailto:darham at hotmail.com>
>     Subject: Re: [OpenSIPS-Users] sip message enters on bucle
>
>     Hi Jorge,
>
>     It looks like Asterisk generates the BYEs and retransmits it
>     because there is no reply coming back from opensips. Normally the
>     BYE is end 2 end replied (so the other end device should generate
>     the reply for BYE).
>     But looking at the 477 reply you get from OpenSIPS, I suspect that
>     OpenSIPS was trying to forward the BYE request (maybe via TCP),
>     got blocked and failed at the end - this failure resulted in the
>     477 reply.
>
>     Check the opensips logs to see error when processing the BYE.
>
>     Regards,
>     Bogdan
>
>     On 04/04/2012 11:42 AM, Jorge Ortea wrote:
>
>         Hi,
>
>         I have the follow VoIP platform;  OpenSIPS 1.6.4.2-tls +
>         Mediaproxy 2.0 + a pair of Asterisks 1.4 (behind SER)
>
>         It works fine but sometimes a sip message enters on a loop.
>         Asterisk sends 5 sip messages at every turn
>
>
>         My logs in OpenSIPS:
>
>         Apr  4 10:14:17 alpha02 /usr/local/sbin/opensips[29503]:
>         :::::: BYE - from 911111111 to O2105 - Callid:
>         5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>         X.X.X.152
>         Apr  4 10:14:18 alpha02 /usr/local/sbin/opensips[29525]:
>         :::::: BYE - from 911111111 to O2105 - Callid:
>         5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>         X.X.X.152
>         Apr  4 10:14:19 alpha02 /usr/local/sbin/opensips[29497]:
>         :::::: BYE - from 911111111 to O2105 - Callid:
>         5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>         X.X.X.152
>         Apr  4 10:14:21 alpha02 /usr/local/sbin/opensips[29487]:
>         :::::: BYE - from 911111111 to O2105 - Callid:
>         5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>         X.X.X.152
>         Apr  4 10:14:25 alpha02 /usr/local/sbin/opensips[29511]:
>         :::::: BYE - from 911111111 to O2105 - Callid:
>         5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152> - Source:
>         X.X.X.152
>
>
>
>         Sip messages in Asterisk *CLI> 'sip debug':
>
>         set_destination: Parsing
>         <sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044> for address/port
>         to send to
>         set_destination: set destination to X.X.X.150, port 5060
>         Reliably Transmitting (no NAT) to X.X.X.150:5060:
>         BYE sip:2105 at Z.Z.Z.Z:5062;transport=tls SIP/2.0
>         Via: SIP/2.0/UDP X.X.X.152:5060;branch=z9hG4bK59044fff;rport
>         Route:
>         <sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044>,<sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044>
>         From: "911111111" <sip:911111111 at X.X.X.152>;tag=as167eb28e
>         To: <sip:O2105 at X.X.X.150>;tag=bcd482cd12b8a21i0
>         Call-ID: 5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152>
>         CSeq: 2874 BYE
>         User-Agent: Asterisk PBX
>         Max-Forwards: 70
>         X-Asterisk-HangupCause: Normal Clearing
>         X-Asterisk-HangupCauseCode: 16
>         Content-Length: 0
>
>
>         ---
>         Scheduling destruction of SIP dialog
>         '5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152>' in 32000
>         ms (Method: REFER)
>         Retransmitting #1 (no NAT) to X.X.X.150:5060:
>         BYE sip:2105 at Z.Z.Z.Z:5062;transport=tls SIP/2.0
>         Via: SIP/2.0/UDP X.X.X.152:5060;branch=z9hG4bK59044fff;rport
>         Route:
>         <sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044>,<sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044>
>         From: "911111111" <sip:911111111 at X.X.X.152>;tag=as167eb28e
>         To: <sip:O2105 at X.X.X.150>;tag=bcd482cd12b8a21i0
>         Call-ID: 5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152>
>         CSeq: 2874 BYE
>         User-Agent: Asterisk PBX
>         Max-Forwards: 70
>         X-Asterisk-HangupCause: Normal Clearing
>         X-Asterisk-HangupCauseCode: 16
>         Content-Length: 0
>
>
>         ---
>         Retransmitting #2 (no NAT) to X.X.X.150:5060:
>         BYE sip:2105 at Z.Z.Z.Z:5062;transport=tls SIP/2.0
>         Via: SIP/2.0/UDP X.X.X.152:5060;branch=z9hG4bK59044fff;rport
>         Route:
>         <sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044>,<sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044>
>         From: "911111111" <sip:911111111 at X.X.X.152>;tag=as167eb28e
>         To: <sip:O2105 at X.X.X.150>;tag=bcd482cd12b8a21i0
>         Call-ID: 5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152>
>         CSeq: 2874 BYE
>         User-Agent: Asterisk PBX
>         Max-Forwards: 70
>         X-Asterisk-HangupCause: Normal Clearing
>         X-Asterisk-HangupCauseCode: 16
>         Content-Length: 0
>
>
>         ---
>         Retransmitting #3 (no NAT) to X.X.X.150:5060:
>         BYE sip:2105 at Z.Z.Z.Z:5062;transport=tls SIP/2.0
>         Via: SIP/2.0/UDP X.X.X.152:5060;branch=z9hG4bK59044fff;rport
>         Route:
>         <sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044>,<sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044>
>         From: "911111111" <sip:911111111 at X.X.X.152>;tag=as167eb28e
>         To: <sip:O2105 at X.X.X.150>;tag=bcd482cd12b8a21i0
>         Call-ID: 5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152>
>         CSeq: 2874 BYE
>         User-Agent: Asterisk PBX
>         Max-Forwards: 70
>         X-Asterisk-HangupCause: Normal Clearing
>         X-Asterisk-HangupCauseCode: 16
>         Content-Length: 0
>
>
>         ---
>         Retransmitting #4 (no NAT) to X.X.X.150:5060:
>         BYE sip:2105 at Z.Z.Z.Z:5062;transport=tls SIP/2.0
>         Via: SIP/2.0/UDP X.X.X.152:5060;branch=z9hG4bK59044fff;rport
>         Route:
>         <sip:X.X.X.150;r2=on;lr=on;did=e25.7093e044>,<sip:Y.Y.Y.150:5061;transport=tls;r2=on;lr=on;did=e25.7093e044>
>         From: "911111111" <sip:911111111 at X.X.X.152>;tag=as167eb28e
>         To: <sip:O2105 at X.X.X.150>;tag=bcd482cd12b8a21i0
>         Call-ID: 5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152>
>         CSeq: 2874 BYE
>         User-Agent: Asterisk PBX
>         Max-Forwards: 70
>         X-Asterisk-HangupCause: Normal Clearing
>         X-Asterisk-HangupCauseCode: 16
>         Content-Length: 0
>
>
>         ---
>
>         <--- SIP read from X.X.X.150:5060 --->
>         SIP/2.0 477 Send failed (477/TM)
>         Via: SIP/2.0/UDP X.X.X.152:5060;branch=z9hG4bK59044fff;rport=5060
>         From: "911111111" <sip:911111111 at X.X.X.152>;tag=as167eb28e
>         To: <sip:O2105 at X.X.X.150>;tag=bcd482cd12b8a21i0
>         Call-ID: 5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152
>         <mailto:5b62cc795e6be4ea3fa9a26e543e3622 at X.X.X.152>
>         CSeq: 2874 BYE
>         Server: OpenSIPS (1.6.4-2-tls (i386/linux))
>         Content-Length: 0
>
>
>         <------------->
>         --- (8 headers 0 lines) ---
>         SIP Response message for INCOMING dialog BYE arrived
>             -- Incoming call: Got SIP response 477 "Send failed
>         (477/TM)" back from X.X.X.150
>
>
>
>         At the end, i have restart the asterisk to solve it. How can I
>         avoid it ?
>
>
>         Thanks.
>         Regards.
>
>
>
>         _______________________________________________
>         Users mailing list
>         Users at lists.opensips.org  <mailto:Users at lists.opensips.org>
>         http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
>
>     -- 
>     Bogdan-Andrei Iancu
>     OpenSIPS Founder and Developer
>     http://www.opensips-solutions.com
>
>
>
> -- 
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com


-- 
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

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