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    <tt>Hi Daniel,<br>
      <br>
      There is no easy fix to come into my mind right now. But I will do
      more thinking on this.<br>
      <br>
      BTW, please check as you have the same routing issue also when the
      B party sends the BYE to hung up -&gt; that BYE also will get
      stuck on the way.<br>
      <br>
      Regards,<br>
    </tt>
    <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
    <div class="moz-cite-prefix">On 23.04.2016 06:29, Daniel Zanutti
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAN0jgiO4Uniq8YPhG3PHoQQ5mnWc+ZRciP7rtOqfGGyrD-Ub=A@mail.gmail.com"
      type="cite">
      <p dir="ltr">That makes a lot of sense.</p>
      <p dir="ltr">Do you think is there anything I could do on my side
        to solve this? Maybe manually fix the RR?</p>
      <p dir="ltr">This client has some kind of link balancing, so
        public IP may change at any time. This must be the reason he
        hasn't set it.</p>
      <p dir="ltr">Thanks in advance!</p>
      <div class="gmail_quote">Em 22/04/2016 7:40 PM, "Bogdan-Andrei
        Iancu" &lt;<a moz-do-not-send="true"
          href="mailto:bogdan@opensips.org">bogdan@opensips.org</a>&gt;
        escreveu:<br type="attribution">
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div bgcolor="#FFFFFF" text="#000000"> <tt>Hi Daniel,<br>
              <br>
              Actually, on the A side, you have another proxy ( see the
              Record Route with 172.20.17.11 in the INVITE). OpenSIPS
              tries to send the BYE to the RR header, but that is
              private. A SIP proxy, if sending traffic to public
              Internet, should not use at all private IPs.<br>
              <br>
              Bottom line, the broken link in your scenario is the </tt><tt>172.20.17.11

              proxy before your opensips.<br>
              <br>
              Regards,<br>
            </tt>
            <pre cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a moz-do-not-send="true" href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre>
            <div>On 23.04.2016 00:12, Daniel Zanutti wrote:<br>
            </div>
            <blockquote type="cite">
              <div dir="ltr">Hi
                <div><br>
                </div>
                <div>I'm facing an strange issue when my Opensips
                  instance hangs up a call, generating BYE to both sides
                  (timeout on dialog module or rtpproxy). The BYE is
                  sent to both sides but A side is behind NAT and the
                  BYE is sent to the local IP address and not to the
                  public one.</div>
                <div><br>
                </div>
                <div>See trace bellow:</div>
                <div><br>
                </div>
                <div>Customer -&gt; Opensips</div>
                <div><br>
                </div>
                <div>
                  <div><b>U <a moz-do-not-send="true"
                        href="http://200.200.200.200:27923"
                        target="_blank">200.200.200.200:27923</a> -&gt;
                      <a moz-do-not-send="true"
                        href="http://199.199.199.199:5060"
                        target="_blank">199.199.199.199:5060</a></b></div>
                  <div>INVITE <a moz-do-not-send="true"
                      href="mailto:sip%3A551133333333@plat.test.com"
                      target="_blank">sip:551133333333@plat.test.com</a>
                    SIP/2.0</div>
                  <div>Record-Route:
                    &lt;sip:172.20.17.11;lr;ftag=7db6f42e;did=769.5ee54854&gt;</div>
                  <div>Via: SIP/2.0/UDP
                    172.20.17.11:5060;branch=z9hG4bKb99a.3c0442d4.0</div>
                  <div>Via: SIP/2.0/UDP
172.28.0.12:57744;received=172.28.0.12;branch=z9hG4bK-524287-1---08559406a5e9137b;rport=57744</div>
                  <div>Max-Forwards: 68</div>
                  <div>Contact: <a moz-do-not-send="true"
                      href="mailto:sip:100111@172.28.0.12:57744;rinstance=b4a1be0f56d73cfd"
                      target="_blank">&lt;sip:100111@172.28.0.12:57744;rinstance=b4a1be0f56d73cfd&gt;</a></div>
                  <div>To: &lt;<a moz-do-not-send="true"
                      href="mailto:sip%3A551133333333@plat.test.com"
                      target="_blank">sip:551133333333@plat.test.com</a>&gt;</div>
                  <div>From: &lt;<a moz-do-not-send="true"
                      href="mailto:sip%3A100111@172.20.17.11"
                      target="_blank">sip:100111@172.20.17.11</a>&gt;;tag=7db6f42e</div>
                  <div>Call-ID:
                    79961NjFjMjY2MDhiYjhhNDYyN2UyMWZiMzFiNWM5NzBkNTM</div>
                  <div>CSeq: 2 INVITE</div>
                  <div>Allow: SUBSCRIBE, NOTIFY, INVITE, ACK, CANCEL,
                    BYE, REFER, INFO, OPTIONS, MESSAGE</div>
                  <div>Content-Type: application/sdp</div>
                  <div>Supported: replaces</div>
                  <div>User-Agent: X-Lite release 4.9.3 stamp 79961</div>
                  <div>Content-Length: 333</div>
                  <div>P-hint: NAT</div>
                  <div><br>
                  </div>
                  <div><br>
                  </div>
                  <div>BYE Opensips -&gt; Customer</div>
                  <div><br>
                  </div>
                  <div><b>U <a moz-do-not-send="true"
                        href="http://199.199.199.199:5060"
                        target="_blank">199.199.199.199:5060</a> -&gt; <font
                        color="#ff0000"><a moz-do-not-send="true"
                          href="http://172.20.17.11:5060"
                          target="_blank">172.20.17.11:5060</a></font></b></div>
                  <div>BYE <a moz-do-not-send="true"
href="mailto:sip:100111@200.200.200.200:27923;rinstance=b4a1be0f56d73cfd"
                      target="_blank">sip:100111@200.200.200.200:27923;rinstance=b4a1be0f56d73cfd</a>
                    SIP/2.0</div>
                  <div>Via: SIP/2.0/UDP
                    199.199.199.199:5060;branch=z9hG4bKe99a.e1c423a3.0</div>
                  <div>To: &lt;<a moz-do-not-send="true"
                      href="mailto:sip%3A100111@172.20.17.11"
                      target="_blank">sip:100111@172.20.17.11</a>&gt;;tag=7db6f42e</div>
                  <div>From: &lt;<a moz-do-not-send="true"
                      href="mailto:sip%3A551133333333@plat.test.com"
                      target="_blank">sip:551133333333@plat.test.com</a>&gt;;tag=as4088ffc9</div>
                  <div>CSeq: 1 BYE</div>
                  <div>Call-ID:
                    79961NjFjMjY2MDhiYjhhNDYyN2UyMWZiMzFiNWM5NzBkNTM</div>
                  <div>Route:
                    &lt;sip:172.20.17.11;lr;ftag=7db6f42e;did=769.5ee54854&gt;</div>
                  <div>Max-Forwards: 70</div>
                  <div>Content-Length: 0</div>
                  <div>User-Agent: Softswitch</div>
                </div>
                <div><br>
                </div>
                <div><br>
                </div>
                <div>On the initial invite, I fixed the Contact using
                  fix_nated_contact() and signalling works fine between
                  A and B sides, the problem is happening when Opensips
                  hangup the call, because A side doesnt receive the
                  BYE.</div>
                <div><br>
                </div>
                <div>Do you guys have an idea on how to fix this? Maybe
                  is it a bug?</div>
                <div><br>
                </div>
                <div>Thanks</div>
                <div><br>
                </div>
                <div><br>
                </div>
                <div><br>
                </div>
              </div>
              <br>
              <fieldset></fieldset>
              <br>
              <pre>_______________________________________________
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</pre>
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