<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<font face="monospace">Hi Antonioss,<br>
<br>
See the "advertise" option - there is a global one, or a
per-socket on:<br>
<a class="moz-txt-link-freetext" href="https://www.opensips.org/Documentation/Script-CoreParameters-3-5#advertised_address">https://www.opensips.org/Documentation/Script-CoreParameters-3-5#advertised_address</a><br>
<a class="moz-txt-link-freetext" href="https://www.opensips.org/Documentation/Script-CoreParameters-3-5#socket">https://www.opensips.org/Documentation/Script-CoreParameters-3-5#socket</a>
(the AS option)<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 02.04.2025 15:00, Antonios Psaras
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:260a01dba3c6$c7d9bf70$578d3e50$@microbase.gr">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="Generator"
content="Microsoft Word 15 (filtered medium)">
<style>@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}div.WordSection1
{page:WordSection1;}</style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal">Hello Johan<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for your prompt reply.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My question is how do I force opensips not
to use NAT IP which is defined on socket level?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As you mention rtpengine as well, what
flags should I pass in order not to use the NAT IP which is
also defined as configuration on “external” interface.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you once more for your support.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:0cm;margin-right:1.0pt;margin-bottom:5.0pt;margin-left:1.0pt"><b><span
style="color:#5F5F5F">Antonis Psaras</span></b><span
style="color:#595959"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>From:</b> Johan De Clercq
<a class="moz-txt-link-rfc2396E" href="mailto:Johan@democon.be"><Johan@democon.be></a> <br>
<b>Sent:</b> Τετάρτη, 2 Απριλίου 2025 13:23<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:apsaras@microbase.gr">apsaras@microbase.gr</a>; OpenSIPS users mailling list
<a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org"><users@lists.opensips.org></a><br>
<b>Subject:</b> Re: [OpenSIPS-Users] mhomed OpenSIPs behind
NAT - How to control NAT IP<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Antonias, <o:p></o:p></p>
<div>
<p class="MsoNormal">yes you can. You need to if then else
the stuff. if $si==1.2.34 then use nat <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">
else don't use nat.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Note, not only for opensips headers,
but you will also need different flags for rtpengine. <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">Op wo 2 apr 2025 om 11:35 schreef
Antonios Psaras <<a href="mailto:apsaras@microbase.gr"
moz-do-not-send="true" class="moz-txt-link-freetext">apsaras@microbase.gr</a>>:<o:p></o:p></p>
</div>
<blockquote
style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Dear all.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I have the
following setup.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">OpenSIPs
Server has two interfaces (DMZ / LAN). DMZ is behind
NAT. RTP Engines is also configured.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Everything
was fine until an end point with in DMZ asked for
SIP Trunking. The issue here is that if DMZ Client
tries to connect to OpenSIPs DMZ interface, OpenSIPs
will reply with NAT IP on SIP body as well as NAT IP
on SDP.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">My thought is
to create an other socket on DMZ interface with a
different port without NAT configuration and ask the
DMZ Client to connect on that interface. That will
required extra configuration per peer as I will need
to specify the preferred communication socket ie on
load balancing configuration. Moreover I should
configure a new RTPEngine Service without NAT
configuration and route those calls to that one. <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Most probably
the above scenario will work but I am looking for
any alternatives to minimize configuration and
complexity. <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Is there any
way to control the usage of NAT IP on OpenSIPs
script. Ie if source IP is with in DMZ do not send
NAT IP in SIP Headers.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Regards<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
</div>
</div>
<p class="MsoNormal">_______________________________________________<br>
Users mailing list<br>
<a href="mailto:Users@lists.opensips.org"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">Users@lists.opensips.org</a><br>
<a
href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><o:p></o:p></p>
</div>
</blockquote>
</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
Users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a>
<a class="moz-txt-link-freetext" href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
</pre>
</blockquote>
<br>
</body>
</html>