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    <p>I just tested and works fine. Try with master branch and default
      config file.</p>
    <p>To test I modified a bit the default kamailio.cfg and I have in
      route[RELAY]:</p>
    <p>    xlog("=======* request $rm before relay\n");<br>
          if (!t_relay()) {<br>
              xlog("=======x request $rm not relayed\n");<br>
              sl_reply_error();<br>
          }<br>
          xlog("=======> request $rm relayed\n");</p>
    <p>I get the ACK routed and in logs I get:</p>
    <p>{1 2 ACK <a class="moz-txt-link-abbreviated" href="mailto:1473723014@127.0.0.1">1473723014@127.0.0.1</a>}  2(20129) ERROR: <script>:
      =======* request ACK before relay<br>
      {1 2 ACK <a class="moz-txt-link-abbreviated" href="mailto:1473723014@127.0.0.1">1473723014@127.0.0.1</a>}  2(20129) ERROR: <script>:
      =======> request ACK relayed</p>
    <p>Cheers,<br>
      Daniel<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 22.12.17 21:00, Jean Cérien wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAL_ph0JnqQHd=5yg2Ei_SuD6Ck1GVCo-Wr_pT08Z4MNW475fOQ@mail.gmail.com">
      <div dir="ltr">
        <div><br>
        </div>
        <div>Many thanks for your help.</div>
        <div>I've applied the patch, recompiled and I see no difference
          unfortunately. The ACK is not forwarded, and execution after
          t_relay stops. </div>
        <div><br>
        </div>
        <div>I've set the debug level to 4 and captured the traces - I
          believe the section dealing with the ACK is there:  <a
            href="https://pastebin.com/TG03YQWC" moz-do-not-send="true">https://pastebin.com/TG03YQWC</a></div>
        <div><br>
        </div>
        <div>KR</div>
        <div>J.</div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Fri, Dec 22, 2017 at 11:59 AM,
          Daniel-Constantin Mierla <span dir="ltr"><<a
              href="mailto:miconda@gmail.com" target="_blank"
              moz-do-not-send="true">miconda@gmail.com</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div text="#000000" bgcolor="#FFFFFF">
              <p>Hello,</p>
              <p>can you give a try with latest master branch or by
                using the patch from next link?</p>
              <p>  -
                <a class="m_-4396643334452035221moz-txt-link-freetext"
href="https://github.com/kamailio/kamailio/commit/52111974b4571e0562e8e731df80f48dbc504915"
                  target="_blank" moz-do-not-send="true">https://github.com/kamailio/<wbr>kamailio/commit/<wbr>52111974b4571e0562e8e731df80f4<wbr>8dbc504915</a></p>
              <p>Apparently the t_realy() stopped script execution (by
                returning 0) when e2e ACK forwarding was successful. The
                patch should change that to return true.</p>
              <p>If all works fine while testing, then I will backport.</p>
              <p>Cheers,<br>
                Daniel<br>
              </p>
              <div>
                <div class="h5">
                  <p><br>
                  </p>
                  <br>
                  <div class="m_-4396643334452035221moz-cite-prefix">On
                    22.12.17 14:05, Jean Cérien wrote:<br>
                  </div>
                  <blockquote type="cite">
                    <div dir="ltr">
                      <div><br>
                      </div>
                      Hello
                      <div>I've tried mhomed = 1 with no luck - not so
                        sure what you mean by default route, I've added
                        listen = udp:myadsress:5060<br>
                        <div>I also have auto_aliases=no and
                          alias=myaddress</div>
                        <div><br>
                        </div>
                        <div>However, what bugs me is that execution
                          seems to stop INSIDE t_relay and the info
                          message after the t_relay is not displayed. </div>
                        <div><br>
                        </div>
                        <div>I hate to say this, but could this be a bug
                          ?</div>
                        <div><br>
                        </div>
                        <div>Rgds</div>
                        <div>J.</div>
                        <div>
                          <div><br>
                          </div>
                        </div>
                      </div>
                    </div>
                    <div class="gmail_extra"><br>
                      <div class="gmail_quote">On Fri, Dec 22, 2017 at
                        1:52 AM, Sergey Safarov <span dir="ltr"><<a
                            href="mailto:s.safarov@gmail.com"
                            target="_blank" moz-do-not-send="true">s.safarov@gmail.com</a>></span>
                        wrote:<br>
                        <blockquote class="gmail_quote" style="margin:0
                          0 0 .8ex;border-left:1px #ccc
                          solid;padding-left:1ex">
                          <div dir="ltr">Check that your installation
                            have one NIC with only one default route on
                            host.
                            <div>If not check that "mhomed=1" is
                              enabled.</div>
                            <div><br>
                            </div>
                            <div>Sergey</div>
                          </div>
                          <br>
                          <div class="gmail_quote">
                            <div dir="ltr">пт, 22 дек. 2017 г. в 0:02,
                              Jean Cérien <<a
                                href="mailto:cerien.jean@gmail.com"
                                target="_blank" moz-do-not-send="true">cerien.jean@gmail.com</a>>:<br>
                            </div>
                            <blockquote class="gmail_quote"
                              style="margin:0 0 0 .8ex;border-left:1px
                              #ccc solid;padding-left:1ex">
                              <div dir="ltr"><br>
                                <div>Hello</div>
                                <div>I am using kamailio 5.0.2, on a
                                  debian 9 system.</div>
                                <div><br>
                                </div>
                                <div>Everything was running fine, until
                                  one of our voip provider changed his
                                  switch. Our kamailio is relaying
                                  between several voip providers and
                                  several asterisk (only the
                                  signalisation, no rtp).</div>
                                <div><br>
                                </div>
                                <div>When we get an invite from this new
                                  switch, we select an asterisk and
                                  relay it correctly to this box.
                                  However, the OK is relayed back. But
                                  when the voip providers sends an ACK
                                  for this OK, the t_relay function does
                                  not return at all, it just dies with
                                  no action and no error.</div>
                                <div><br>
                                </div>
                                <div>Here is the snippet from
                                  route(relay)</div>
                                <div><br>
                                </div>
                                <div>
                                  <div>       
                                    xlog("L_INFO","route(relay)  @@ $rm
                                    - Source: $si:$sp, fu:$fu, tu:$tu\n"
                                    );</div>
                                  <div>       
                                    $var(restrelay)=t_relay();</div>
                                  <div>       
                                    xlog("L_INFO","route(relay)  @@ $rm
                                    - t_relay result: $var(restrelay)"
                                    );</div>
                                  <div>        if (!$var(restrelay)) {</div>
                                </div>
                                <div><br>
                                </div>
                                <div>When processing the initial invite,
                                  I do get both INFO messages. When the
                                  ACK is processed, I only get one INFO
                                  message, and no ACK is relayed - so it
                                  seems execution dies in the t_relay</div>
                                <div><br>
                                </div>
                                <div>What could be wrong ???</div>
                                <div><br>
                                </div>
                                <div>J.</div>
                                <div><br>
                                </div>
                                <div>Details of the ACK:</div>
                                <div><br>
                                </div>
                                <div>
                                  <div><font face="monospace, monospace">ACK
                                      <a
                                        class="m_-4396643334452035221moz-txt-link-freetext"
                                        moz-do-not-send="true">sip:dialednumber@kamailioIP</a>:50<wbr>60
                                      SIP/2.0<br>
                                    </font></div>
                                  <div><font face="monospace, monospace">Via:
                                      SIP/2.0/UDP
                                      VOIPPROVIDERIP:5060;branch=z9h<wbr>G4bKjq16fi00d85uee181ic0.1</font></div>
                                  <div><font face="monospace, monospace">To:
                                      <a
                                        class="m_-4396643334452035221moz-txt-link-rfc2396E"
                                        moz-do-not-send="true"><sip:kamailioIP:5060></a>;tag=as7f<wbr>10ed48</font></div>
                                  <div><font face="monospace, monospace">From:
                                      <<a
                                        href="mailto:sip%3Asourcenumber@orange-multimedia.fr"
                                        target="_blank"
                                        moz-do-not-send="true">sip:sourcenumber@orange-multi<wbr>media.fr</a>>;tag=SD8u3ob01-7dd8ef<wbr>de-0002-00d5-0000-0000</font></div>
                                  <div><font face="monospace, monospace">Call-ID:
                                      SD8u3ob01-688d41f5e2164ceeafe7<wbr>6f40b82b3f97-v300g00030</font></div>
                                  <div><font face="monospace, monospace">CSeq:
                                      1 ACK</font></div>
                                  <div><font face="monospace, monospace">Max-Forwards:
                                      66</font></div>
                                  <div><font face="monospace, monospace">Content-Length:
                                      0</font></div>
                                  <div><font face="monospace, monospace">Route:
                                      <<a
                                        class="m_-4396643334452035221moz-txt-link-freetext"
                                        moz-do-not-send="true">sip:kamailioIP;lr=on;ftag=</a>SD8<wbr>u3ob01-7dd8efde-0002-00d5-0000<wbr>-0000;did=a0b.49d></font></div>
                                </div>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                                <div>(should you have enough width; the
                                  diagram will look ok)</div>
                                <div><br>
                                </div>
                                <div>
                                  <div><font face="monospace, monospace"> 
                                                       VOIP PROVIDER   
                                                 KAMAILIO               
                                             ASTERISK</font></div>
                                  <div><font face="monospace, monospace"> 
                                      21:38:54.685149   │
                                      ──────────────────────────> │ 
                                                                 │   </font></div>
                                  <div><span
                                      style="font-family:monospace,monospace">▒ 
                                           +0.000451   │  100 trying --
                                      your call is │                   
                                               │   </span></div>
                                  <div><font face="monospace, monospace">▒
                                      21:38:54.685600   │
                                      <────────────────────────── │ 
                                                                 │   </font></div>
                                  <div><font face="monospace, monospace">▒ 
                                           +0.000084   │               
                                                   │        INVITE
                                      (SDP)         │   </font></div>
                                  <div><font face="monospace, monospace">▒
                                      21:38:54.685684   │               
                                                   │
                                      ──────────────────────────> │ 
                                       </font></div>
                                  <div><font face="monospace, monospace">▒ 
                                           +0.000831   │               
                                                   │         100 Trying 
                                              │   </font></div>
                                  <div><font face="monospace, monospace">▒
                                      21:38:54.686515   │               
                                                   │
                                      <────────────────────────── │ 
                                       </font></div>
                                  <div><font face="monospace, monospace">▒ 
                                           +0.000471   │               
                                                   │        200 OK
                                      (SDP)         │   </font></div>
                                  <div><font face="monospace, monospace">▒
                                      21:38:54.686986   │               
                                                   │
                                      <────────────────────────── │ 
                                       </font></div>
                                  <div><font face="monospace, monospace">▒ 
                                           +0.000394   │        200 OK
                                      (SDP)         │                   
                                               │   </font></div>
                                  <div><font face="monospace, monospace">▒
                                      21:38:54.687380   │
                                      <────────────────────────── │ 
                                                                 │   </font></div>
                                  <div><font face="monospace, monospace">▒ 
                                           +0.038694   │           
                                       ACK             │               
                                                   │   </font></div>
                                  <div><font face="monospace, monospace">▒
                                      21:38:54.726074   │
                                      ──────────────────────────> │ 
                                                                 │   </font></div>
                                  <div><font face="monospace, monospace">▒ 
                                           +0.060155   │               
                                                   │        200 OK
                                      (SDP)         │   </font></div>
                                  <div><font face="monospace, monospace">▒
                                      21:38:54.786229   │               
                                                   │
                                      <<<────────────────────────
                                      │   </font></div>
                                  <div><font face="monospace, monospace">▒ 
                                           +0.000138   │        200 OK
                                      (SDP)         │                   
                                               │   </font></div>
                                  <div><font face="monospace, monospace">▒
                                      21:38:54.786367   │
                                      <<<────────────────────────
                                      │                             │   </font></div>
                                  <div><font face="monospace, monospace">▒ 
                                           +0.005721   │           
                                       ACK             │               
                                                   │ </font></div>
                                </div>
                                <div><br>
                                </div>
                                <div><br>
                                </div>
                              </div>
                              ______________________________<wbr>_________________<br>
                              Kamailio (SER) - Users Mailing List<br>
                              <a
                                href="mailto:sr-users@lists.kamailio.org"
                                target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
                              <a
                                href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
                                rel="noreferrer" target="_blank"
                                moz-do-not-send="true">https://lists.kamailio.org/cgi<wbr>-bin/mailman/listinfo/sr-users</a><br>
                            </blockquote>
                          </div>
                          <br>
                          ______________________________<wbr>_________________<br>
                          Kamailio (SER) - Users Mailing List<br>
                          <a href="mailto:sr-users@lists.kamailio.org"
                            target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
                          <a
                            href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
                            rel="noreferrer" target="_blank"
                            moz-do-not-send="true">https://lists.kamailio.org/cgi<wbr>-bin/mailman/listinfo/sr-users</a><br>
                          <br>
                        </blockquote>
                      </div>
                      <br>
                    </div>
                    <br>
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                      class="m_-4396643334452035221mimeAttachmentHeader"></fieldset>
                    <br>
                    <pre>______________________________<wbr>_________________
Kamailio (SER) - Users Mailing List
<a class="m_-4396643334452035221moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org" target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a>
<a class="m_-4396643334452035221moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" target="_blank" moz-do-not-send="true">https://lists.kamailio.org/<wbr>cgi-bin/mailman/listinfo/sr-<wbr>users</a>
</pre>
                  </blockquote>
                  <br>
                </div>
              </div>
              <span class="HOEnZb"><font color="#888888">
                  <pre class="m_-4396643334452035221moz-signature" cols="72">-- 
Daniel-Constantin Mierla
<a class="m_-4396643334452035221moz-txt-link-abbreviated" href="http://www.twitter.com/miconda" target="_blank" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a class="m_-4396643334452035221moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda" target="_blank" moz-do-not-send="true">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - <a class="m_-4396643334452035221moz-txt-link-abbreviated" href="http://www.asipto.com" target="_blank" moz-do-not-send="true">www.asipto.com</a>
Kamailio World Conference - May 14-16, 2018 - <a class="m_-4396643334452035221moz-txt-link-abbreviated" href="http://www.kamailioworld.com" target="_blank" moz-do-not-send="true">www.kamailioworld.com</a></pre>
                </font></span></div>
          </blockquote>
        </div>
        <br>
      </div>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Daniel-Constantin Mierla
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
Kamailio World Conference - May 14-16, 2018 - <a class="moz-txt-link-abbreviated" href="http://www.kamailioworld.com">www.kamailioworld.com</a></pre>
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