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<font face="monospace">Hi Sreeram,<br>
<br>
Unfortunately the ladder diagram is not enough as I cannot set the
details of all the messages :(. The it looks, the 200 OK coming
from 110.46.1.106:5060 may contain bogus routing information (the
dialog route set), like a wrong Contact hdr point to that
EXTERNAL_IP....<br>
<br>
Regards,<br>
</font>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
<a class="moz-txt-link-freetext" href="https://www.siphub.com">https://www.siphub.com</a></pre>
<div class="moz-cite-prefix">On 11/21/23 12:13 PM, Sreeram Narayanan
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAHSZ+1iEm-5G3Wh7gSRYPSjxWaNiPegogw7GJMHTcW18DZZ0gg@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hi,
<div>Thanks for your response. <br>
</div>
<div><br>
</div>
<div>I've added the network trace <a
href="https://pastebin.com/raw/Lxi0SRZ4"
moz-do-not-send="true">here</a>. I've masked some of the IPs
for security.</div>
<div><a href="https://pastebin.com/raw/rCLdemG4"
moz-do-not-send="true">This</a> is what the ACK looks like
from the OpenSIPs server. Please let me know if I need to
share more information.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Nov 15, 2023 at
5:05 PM Bogdan-Andrei Iancu <<a
href="mailto:bogdan@opensips.org" moz-do-not-send="true">bogdan@opensips.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div> <font face="monospace">Hi,<br>
<br>
Ideally you should provide a network capture (pcap) from
the OpenSIPS server, covering both incoming and outgoing
traffic - this is the only way to understand what is wrong
with the call.<br>
<br>
As attachments are limited to 40K here, consider using
some pastebin or other file sharing service.<br>
<br>
Regards,<br>
</font>
<pre cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a href="https://www.opensips-solutions.com" target="_blank" moz-do-not-send="true">https://www.opensips-solutions.com</a>
<a href="https://www.siphub.com" target="_blank" moz-do-not-send="true">https://www.siphub.com</a></pre>
<div>On 11/13/23 1:26 PM, Sreeram Narayanan via Users wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hello,
<div><br>
</div>
<div>I am trying to use OpenSIPs with the load_balancer
module to balance inbound calls between 2 Asterisk
servers. The setup sits behind a NAT. The OpenSIPs
server has a public IP and a private IP. When an
INVITE arrives, it can forward it to one of the
Asterisk servers and Asterisk responds with a 200 OK.
The problem starts when I receive the ACK (from
Twilio). The ACK starts bouncing between the public IP
and Private IP of the OpenSIPs server. It doesn't
reach the Asterisk server and eventually times out. I
hope someone can help me with this. Thanks in advance.</div>
<div><br>
</div>
<div>Here is my configuration:</div>
<div><br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px
0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">####### Routing
Logic ########<br>
route {<br>
<br>
if (is_method("INVITE")) {<br>
rtpproxy_engage();<br>
}<br>
<br>
if ($rm=="INVITE") {<br>
<br>
lb_start_or_next(1,"pstn");<br>
}<br>
<br>
t_check_trans();<br>
record_route();<br>
<br>
t_on_failure("GW_FAILOVER");<br>
<br>
# route the request<br>
if (!t_relay()) {<br>
sl_reply_error();<br>
}<br>
<br>
exit;<br>
}<br>
<br>
route[RELAY] {<br>
if (!t_relay()) {<br>
sl_reply_error();<br>
}<br>
exit;<br>
}<br>
<br>
failure_route[GW_FAILOVER] {<br>
if (t_was_cancelled()) {<br>
exit;<br>
}<br>
# failure detection with redirect to next
available trunk<br>
if (t_check_status("(408)|([56][0-9][0-9])")) {<br>
xlog("Failed trunk $rd/$du detected \n");<br>
}<br>
}<br>
</blockquote>
<div>
<div><br>
</div>
<span class="gmail_signature_prefix">-- </span><br>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">- Sreeram</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
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</pre>
</blockquote>
<br>
</div>
</blockquote>
</div>
<br clear="all">
<div><br>
</div>
<span class="gmail_signature_prefix">-- </span><br>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">- Sreeram</div>
</div>
</blockquote>
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