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    Hello,<br>
    <br>
    the BYE is coming with a rather strange R-URI. That should be taken
    from INVITE contact. Also, apparently the INVITE comes from behind
    NAT, you should use nat traversal logic to update the contact (e.g.,
    add/set alias parameter).<br>
    <br>
    See default configuration file for nat traversal, same should be
    applied here.<br>
    <br>
    Cheers,<br>
    Daniel<br>
    <br>
    <div class="moz-cite-prefix">On 29/10/14 11:55, Marko Seidenglanz
      wrote:<br>
    </div>
    <blockquote
cite="mid:CANkb97AwtMKLw9acRmXeWxrQeTQo+VGqKmq4WLe=ERckB72a5g@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hello,
        <div><br>
        </div>
        <div>We have a setup where Kamailio 4.2 is used in front of
          Asterisk as WebRTC Proxy doing the encryption and NAT
          Traversal.</div>
        <div><br>
        </div>
        <div>Everything works as expected, except that BYE Requests sent
          by the WebRTC Client are not forwarded by Kamailio to
          Asterisk. We use record routing. Instead Kamailio responds
          with a "404 Not here".</div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div> INVITE Headers: Kamailio --> Browser:</div>
        <div><br>
        </div>
        <div>
          <div><a moz-do-not-send="true"
              href="mailto:sip%3Ae3W5LffMkg0PZjP3SIGf6@wh2.24dial.com">sip:e3W5LffMkg0PZjP3SIGf6@wh2.24dial.com</a>
            SIP/2.0</div>
          <div>Record-Route:
            <a class="moz-txt-link-rfc2396E" href="sip:104.155.11.255:5060;nat=yes;lr=on"><sip:104.155.11.255:5060;nat=yes;lr=on></a></div>
          <div>Via: SIP/2.0/UDP
104.155.14.169:5064;branch=z9hG4bKa938.2add79aa083cd5776556ff0813878415.0</div>
          <div>Via: SIP/2.0/UDP
            10.240.177.13:5060;received=127.0.0.1;branch=z9hG4bK2d4f70db</div>
          <div>Max-Forwards: 70</div>
          <div>From: "Anonymous"
            <a class="moz-txt-link-rfc2396E" href="sip:anonymous@anonymous.invalid"><sip:anonymous@anonymous.invalid></a>;tag=as32dd9e24</div>
          <div>To: <<a moz-do-not-send="true"
              href="mailto:sip%3Ae3W5LffMkg0PZjP3SIGf6@wh2.24dial.com">sip:e3W5LffMkg0PZjP3SIGf6@wh2.24dial.com</a>></div>
          <div>Contact: <<a moz-do-not-send="true"
              href="http://sip:anonymous@10.240.177.13:5060">sip:anonymous@10.240.177.13:5060</a>></div>
          <div>Call-ID: <a moz-do-not-send="true"
              href="http://21cdb2366ccaab492fd1e69f590620b4@10.240.177.13:5060">21cdb2366ccaab492fd1e69f590620b4@10.240.177.13:5060</a></div>
          <div>CSeq: 102 INVITE</div>
          <div>User-Agent: Asterisk PBX 11.13.1</div>
          <div>Date: Wed, 29 Oct 2014 10:04:22 GMT</div>
          <div>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER,
            SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE</div>
          <div>Supported: replaces, timer</div>
          <div>Content-Type: application/sdp</div>
          <div>Content-Length: 676</div>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div> BYE Headers Browser --> Kamailio:<br>
        </div>
        <div><br>
        </div>
        <div>
          <div>BYE <a class="moz-txt-link-freetext" href="sip:anonymous@anonymous.invalid">sip:anonymous@anonymous.invalid</a> SIP/2.0</div>
          <div>Via: SIP/2.0/UDP
104.155.14.169:5064;branch=z9hG4bKa938.2add79aa083cd5776556ff0813878415.0</div>
          <div> , SIP/2.0/UDP
            10.240.177.13:5060;received=127.0.0.1;branch=z9hG4bK2d4f70db</div>
          <div>From:  <<a moz-do-not-send="true"
              href="mailto:sip%3Ae3W5LffMkg0PZjP3SIGf6@wh2.24dial.com">sip:e3W5LffMkg0PZjP3SIGf6@wh2.24dial.com</a>>;tag=2TQ878KMAVLA43TXVZHNAWCWVKU6BLPBURF3</div>
          <div>To: "Anonymous"
            <a class="moz-txt-link-rfc2396E" href="sip:anonymous@anonymous.invalid"><sip:anonymous@anonymous.invalid></a>;tag=as32dd9e24</div>
          <div>Call-ID: <a moz-do-not-send="true"
              href="http://21cdb2366ccaab492fd1e69f590620b4@10.240.177.13:5060">21cdb2366ccaab492fd1e69f590620b4@10.240.177.13:5060</a></div>
          <div>CSeq: 0 BYE</div>
          <div>Record-Route:
            <a class="moz-txt-link-rfc2396E" href="sip:104.155.11.255:5060;nat=yes;lr=on"><sip:104.155.11.255:5060;nat=yes;lr=on></a></div>
          <div>Reason: Q.850;cause=16</div>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>BYE Response Kamailio --> Browser:<br>
        </div>
        <div><br>
        </div>
        <div>
          <div>SIP/2.0 404 Not here</div>
          <div>Via: SIP/2.0/UDP
104.155.14.169:5064;branch=z9hG4bK65df.6fd637d055286a45aa6f3e12c5ac873c.0</div>
          <div> , SIP/2.0/UDP
10.240.177.13:5060;received=127.0.0.1;branch=z9hG4bK51c69f33;received=80.255.2.37</div>
          <div>From:  <<a moz-do-not-send="true"
              href="mailto:sip%3Ae3W5LffMkg0PZjP3SIGf6@wh2.24dial.com">sip:e3W5LffMkg0PZjP3SIGf6@wh2.24dial.com</a>>;tag=47J6E76F5EVB583A682FQR799J6XDSU46MW8</div>
          <div>To: "Anonymous"
            <a class="moz-txt-link-rfc2396E" href="sip:anonymous@anonymous.invalid"><sip:anonymous@anonymous.invalid></a>;tag=as0b12a022</div>
          <div>Call-ID: <a moz-do-not-send="true"
              href="http://683def08655393622c55299c1a7c92d5@10.240.177.13:5060">683def08655393622c55299c1a7c92d5@10.240.177.13:5060</a></div>
          <div>CSeq: 0 BYE</div>
          <div>Server: kamailio (4.2.0 (x86_64/linux))</div>
          <div>Content-Length: 0</div>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>In the logs I can see the following messages:</div>
        <div>[loose.c:113]: find_first_route(): No Route headers found<br>
        </div>
        <div>[loose.c:929]: loose_route(): There is no Route HF<br>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>Does anybody know, why Kamailio may respond with 404 Not
          here? Do I have to send the BYE request directly to Asterisk?</div>
        <div><br>
        </div>
        <div>Kind regards,</div>
        <div>Marko</div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a>
<a class="moz-txt-link-freetext" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
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