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: [email protected]
To: [email protected]
CC: [email protected]
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:
    [email protected]
    <mailto:[email protected]> - Source:
    X.X.X.152
    Apr  4 10:14:18 alpha02 /usr/local/sbin/opensips[29525]: ::::::
    BYE - from 911111111 to O2105 - Callid:
    [email protected]
    <mailto:[email protected]> - Source:
    X.X.X.152
    Apr  4 10:14:19 alpha02 /usr/local/sbin/opensips[29497]: ::::::
    BYE - from 911111111 to O2105 - Callid:
    [email protected]
    <mailto:[email protected]> - Source:
    X.X.X.152
    Apr  4 10:14:21 alpha02 /usr/local/sbin/opensips[29487]: ::::::
    BYE - from 911111111 to O2105 - Callid:
    [email protected]
    <mailto:[email protected]> - Source:
    X.X.X.152
    Apr  4 10:14:25 alpha02 /usr/local/sbin/opensips[29511]: ::::::
    BYE - from 911111111 to O2105 - Callid:
    [email protected]
    <mailto:[email protected]> - 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: [email protected] <mailto:[email protected]>
    To: [email protected] <mailto:[email protected]>
    CC: [email protected] <mailto:[email protected]>
    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:
        [email protected]
        <mailto:[email protected]> - Source:
        X.X.X.152
        Apr  4 10:14:18 alpha02 /usr/local/sbin/opensips[29525]:
        :::::: BYE - from 911111111 to O2105 - Callid:
        [email protected]
        <mailto:[email protected]> - Source:
        X.X.X.152
        Apr  4 10:14:19 alpha02 /usr/local/sbin/opensips[29497]:
        :::::: BYE - from 911111111 to O2105 - Callid:
        [email protected]
        <mailto:[email protected]> - Source:
        X.X.X.152
        Apr  4 10:14:21 alpha02 /usr/local/sbin/opensips[29487]:
        :::::: BYE - from 911111111 to O2105 - Callid:
        [email protected]
        <mailto:[email protected]> - Source:
        X.X.X.152
        Apr  4 10:14:25 alpha02 /usr/local/sbin/opensips[29511]:
        :::::: BYE - from 911111111 to O2105 - Callid:
        [email protected]
        <mailto:[email protected]> - 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:[email protected]: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:[email protected]>;tag=as167eb28e
        To: <sip:[email protected]>;tag=bcd482cd12b8a21i0
        Call-ID: [email protected]
        <mailto:[email protected]>
        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
        '[email protected]
        <mailto:[email protected]>' in 32000
        ms (Method: REFER)
        Retransmitting #1 (no NAT) to X.X.X.150:5060:
        BYE sip:[email protected]: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:[email protected]>;tag=as167eb28e
        To: <sip:[email protected]>;tag=bcd482cd12b8a21i0
        Call-ID: [email protected]
        <mailto:[email protected]>
        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:[email protected]: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:[email protected]>;tag=as167eb28e
        To: <sip:[email protected]>;tag=bcd482cd12b8a21i0
        Call-ID: [email protected]
        <mailto:[email protected]>
        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:[email protected]: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:[email protected]>;tag=as167eb28e
        To: <sip:[email protected]>;tag=bcd482cd12b8a21i0
        Call-ID: [email protected]
        <mailto:[email protected]>
        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:[email protected]: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:[email protected]>;tag=as167eb28e
        To: <sip:[email protected]>;tag=bcd482cd12b8a21i0
        Call-ID: [email protected]
        <mailto:[email protected]>
        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:[email protected]>;tag=as167eb28e
        To: <sip:[email protected]>;tag=bcd482cd12b8a21i0
        Call-ID: [email protected]
        <mailto:[email protected]>
        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.



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-- 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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