<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div>Hi Bogdan,</div><div><br></div><div>Thanks very much for your reply. I will have a try immediately.</div><div><br></div><div>Thanks a lot,</div><div>Sean</div><br><br><br><br><div style="position:relative;zoom:1"></div><div id="divNeteaseMailCard"></div><br>At 2018-01-09 22:41:34, "Bogdan-Andrei Iancu" <bogdan@opensips.org> wrote:<br> <blockquote id="isReplyContent" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
  
    
  
  
    <tt>HI Sean,<br>
      <br>
      If I understand correctly your setup, you should use into PATH
      support on opensips (RFC 3327). Also take a look at the path
      module in OpenSIPS:<br>
          <a class="moz-txt-link-freetext" href="http://www.opensips.org/html/docs/modules/2.3.x/path.html">http://www.opensips.org/html/docs/modules/2.3.x/path.html</a><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>
OpenSIPS Summit 2018
  <a class="moz-txt-link-freetext" href="http://www.opensips.org/events/Summit-2018Amsterdam">http://www.opensips.org/events/Summit-2018Amsterdam</a>
</pre>
    <div class="moz-cite-prefix">On 01/09/2018 03:27 AM, liuyuanting1209
      wrote:<br>
    </div>
    <blockquote type="cite" cite="mid:29dbdfac.1da5.160d887d118.Coremail.liuyuanting1209@163.com">
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          <div>Hi, </div>
          <div><br>
          </div>
          <div>I am new on opensips. could you please help to solve my
            questions. Thanks a lot.</div>
          <div><br>
          </div>
          <div>My environment:</div>
          <blockquote style="margin: 0 0 0 40px; border: none; padding:
            0px;">
            <div>client is behind NAT(any kinds of NAT), </div>
            <div>opensips server has public ip,  register server is
              different with invite server. </div>
            <div>sip server only has private ip but opensips can reach
              it directly. </div>
            <div>media server has public ip.</div>
          </blockquote>
          <div><br>
          </div>
          <div>So I want opensips solve NAT problem. </div>
          <div>1 if I use nathelper module, after contact fix, the
            server can only get opensips's private ip and port</div>
          <div>2 if I use nat_traversal module, after contact fix, the
            sip server can only get the ip watched from opensips. </div>
          <div><br>
          </div>
          <div>I want to let sip server get the ip watched from sip
            server, so sip server only needs to store one ip. is there
            such way for opensips ?</div>
          <div><br>
          </div>
          <div><br>
          </div>
          <div>Thanks a lot.</div>
          <div>Sean Liu</div>
        </div>
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      <pre wrap="">_______________________________________________
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