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<tt>Hi Yury,<br>
<br>
Why do you need to update the incoming SDP before engaging
RTPproxy ? Just pass to it whatever you get into SDP (even if
private) and let rtpproxy to "learn" the correct IP:port of the
media end points based on the incoming traffic. <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>
</pre>
<div class="moz-cite-prefix">On 11/14/2017 04:05 AM, Yury Kirsanov
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAD1_seuG1rhXiMuGfs6NoQshfw_5MdA8HQtFNroVZ+2eG-ohRw@mail.gmail.com">
<div dir="ltr">Hi,
<div>I have a problem with remote client who can't properly
configure NAT and is sending private IP in all SDP and SIP
packets. I've resolved issues with registration but can't
resolve the issue with SDP. My topology is as following:</div>
<div><br>
</div>
<div><Client> ----- <NAT router> ------- <RTP
Proxy> ---------- <OpenSIPS> -------- <NAT>
----------- <PBX></div>
<div><br>
</div>
<div>So, I need to simultaneously engage RTP Proxy to bridge
external Internet and our local LAN and need to rewrite SDP
body of original Client's packet with received IP address. If
I'm doing fix_nated_sdp and then rtpproxy_offer - I'm getting
doubled IPs in SDP message, like this:<br>
<br>
</div>
<div>
<div class="gmail-WordSection1">
<p class="MsoNormal"
style="margin-bottom:0.0001pt;line-height:normal"><span
style="font-size:10pt;font-family:"Segoe
UI",sans-serif;color:black">100.11.100.200192.168.20.200</span></p>
<p class="MsoNormal"
style="margin-bottom:0.0001pt;line-height:normal"><span
style="font-size:10pt;font-family:"Segoe
UI",sans-serif;color:black"><br>
</span></p>
<p class="MsoNormal"
style="margin-bottom:0.0001pt;line-height:normal"><span
style="font-size:10pt;font-family:"Segoe
UI",sans-serif;color:black">Is there any way to
update SDP of client's packet and then command RTP Proxy
to use updated IP? Thanks!</span></p>
</div>
</div>
</div>
<br>
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<br>
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</pre>
</blockquote>
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