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<tt>Hi,<br>
<br>
Maybe the MESSAGE is sent to an IP:port:proto destination not used
as listener by OpenSIPS. The tcpdump tool shows the network
traffic , but with no guarantee for the delivery at application
level. <br>
<br>
So check the listeners in OpenSIPS and the local iptables.<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 01/10/2018 12:30 PM, liuyuanting1209
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:70cbd7aa.c228.160df9edb64.Coremail.liuyuanting1209@163.com">
<div
style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><br>
<div>Hi Bogdan,</div>
<div><br>
</div>
<div>I encountered another problem. </div>
<div><br>
</div>
<div>client send register to opensips then opensips send to
server 1. server1 send 200OK back to opensips and then
client</div>
<div><br>
</div>
<div>server2 send MESSAGE to opensips. With tcpdump I can see
the opensips server has received the MESSAGE. But opensips
process failed to received it.</div>
<div>I add log in net_udp.c handle_io() , I got log for
register and 200 ok. But there is no log for the MESSAGE. </div>
<div><br>
</div>
<div>any idea for such error? </div>
<div><br>
</div>
<div>Thanks.</div>
<div>Sean </div>
<div><br>
</div>
<br>
<br>
<br>
<br>
At 2018-01-09 22:41:34, "Bogdan-Andrei Iancu"
<a class="moz-txt-link-rfc2396E" href="mailto:bogdan@opensips.org"><bogdan@opensips.org></a> 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"
moz-do-not-send="true">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" moz-do-not-send="true">http://www.opensips-solutions.com</a>
OpenSIPS Summit 2018
<a class="moz-txt-link-freetext" href="http://www.opensips.org/events/Summit-2018Amsterdam" moz-do-not-send="true">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">
<div
style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial">
<div
style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial">
<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>
<br>
<br>
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