<div dir="ltr">Is used ICE here?<br>Negotiation may be blocked by not finished ICE process.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jul 23, 2020 at 5:35 PM Marko Seidenglanz <<a href="mailto:marko.seidenglanz@gmail.com">marko.seidenglanz@gmail.com</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 dir="ltr"><p>Hi,</p>
<br>
<p style="box-sizing:border-box;margin-top:0px;margin-bottom:12px;color:rgb(40,41,42);font-family:FiraGO,sans-serif;font-size:15px">We
have the following Setup:</p>
<ul style="box-sizing:border-box;padding-left:2em;margin-top:0px;margin-bottom:12px;color:rgb(40,41,42);font-family:FiraGO,sans-serif;font-size:15px">
<li style="box-sizing:border-box">FreeSWITCH Version
1.10.3-release+git<del style="box-sizing:border-box">20200511T105455Z</del>129de34d84~64bit
(in Docker Container on a Google Compute Engine Instance)<br>
</li>
<li style="box-sizing:border-box;margin-top:0.25em">Firefox
78.0.2 (64-Bit) behind NAT-Device<br>
</li>
</ul>
<p style="box-sizing:border-box;margin-top:0px;margin-bottom:12px;color:rgb(40,41,42);font-family:FiraGO,sans-serif;font-size:15px"><br>
</p>
<p style="box-sizing:border-box;margin-top:0px;margin-bottom:12px;color:rgb(40,41,42);font-family:FiraGO,sans-serif;font-size:15px">We
try to establish a WebRTC Audio Connection initiated by
Freeswitch.</p>
<ol style="box-sizing:border-box;padding-left:2em;margin-top:0px;margin-bottom:12px;color:rgb(40,41,42);font-family:FiraGO,sans-serif;font-size:15px">
<li style="box-sizing:border-box">Send SDP FS->FF</li>
<li style="box-sizing:border-box;margin-top:0.25em">Set remote
description / create local description</li>
<li style="box-sizing:border-box;margin-top:0.25em">Send SDP
FF->FS</li>
<li style="box-sizing:border-box;margin-top:0.25em">Connectivity
checks are started</li>
</ol>
<p><br>
</p>
<p>Problem:<br>
</p>
<p style="box-sizing:border-box;margin-top:0px;margin-bottom:12px;color:rgb(40,41,42);font-family:FiraGO,sans-serif;font-size:15px">Firefox
never sends the DTLS "Client Hello" message and so the connection
fails.<br>
</p>
<p style="box-sizing:border-box;margin-top:0px;margin-bottom:12px;color:rgb(40,41,42);font-family:FiraGO,sans-serif;font-size:15px">We
had no problems with previous versions of Freeswitch. It's only
since we have updated the system. With Google Chrome everything
works as usual.</p>
<p style="box-sizing:border-box;margin-top:0px;color:rgb(40,41,42);font-family:FiraGO,sans-serif;font-size:15px;margin-bottom:0px">I've attached two packet captures. One shows the session
with Chrome, which is successful and the other one with Firefox,
which is unfortunately not.</p>
<p>Has anyone identified similar problems and can give us
assistance?</p>
<p>I have seen that a lot has been changed in the switch_rtp module.</p>
<p>For example, we noticed that the message "Auto Changing audio
stun/rtp/dtls" no longer appears in the fs_cli.<br>
</p>
<p><br>
</p>
<p>Best regards,<br>
</p>
<p>Marko Seidenglanz</p></div>
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