Ice must negotiate, then dtls. The ice is not encrypted.<div><span></span><br><br>On Sunday, May 31, 2015, Michael Jerris <<a href="mailto:mike@jerris.com">mike@jerris.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Typically this happens when the traffic isn't making it back to FreeSWITCH.<span></span><br><br>On Sunday, May 31, 2015, Jon Lederman <<a href="javascript:_e(%7B%7D,'cvml','jonlederman@gmail.com');" target="_blank">jonlederman@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
We are having trouble getting WebRTC working with 1.6. I have tracked the problem down to the do_dtls function in switch_rtp.c (shown partially below). Two things we have noticed:<br>
<br>
1) It appears that ice.ready and ice.ready are always 0.<br>
2) DTLS negotiation never completes the handshake.<br>
<br>
Does ice have to be operative in order for dtls negotiation to proceed or the other way around? What should I look for, which may prevent the ice setup and/or dtls handshake.<br>
We are running on google cloud. Are there networking/NAT issues running on cloud servers that might interfere with either ICE or DTLS?<br>
<br>
Thanks in advance.<br>
<br>
-Jon<br>
<br>
<br>
static int do_dtls(switch_rtp_t *rtp_session, switch_dtls_t *dtls)<br>
{<br>
int r = 0, ret = 0, len;<br>
switch_size_t bytes;<br>
unsigned char buf[4096] = "";<br>
int ready = rtp_session->ice.ice_user ? (rtp_session->ice.rready && rtp_session->ice.ready) : 1;<br>
<br>
<br>
<br>
if (!dtls->bytes && !ready) {<br>
//switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(rtp_session->session), SWITCH_LOG_ALERT, "Ice not ready");<br>
return 0;<br>
}<br>
<br>
…<br>
<br>
<br>
<br>
<br>
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</blockquote></div><br><br>-- <br><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Anthony Minessale II ♬ @anthmfs ♬ @FreeSWITCH ♬<div><br><div>☞ <a href="http://freeswitch.org/" target="_blank">http://freeswitch.org/</a> ☞ <a href="http://cluecon.com/" target="_blank">http://cluecon.com/</a> ☞ <a href="http://twitter.com/FreeSWITCH" target="_blank">http://twitter.com/FreeSWITCH</a></div><div><div>☞ <a href="http://irc.freenode.net" target="_blank">irc.freenode.net</a> #freeswitch ☞ <u><a href="http://freeswitch.org/g+" target="_blank">http://freeswitch.org/g+</a></u><br><br></div><div>ClueCon Weekly Development Call <br></div><div>☎ <a href="mailto:sip%3A888@conference.freeswitch.org" target="_blank">sip:888@conference.freeswitch.org</a> ☎ +19193869900 </div><div><br></div></div></div><div><a href="https://www.youtube.com/watch?v=9XXgW34t40s" style="color:rgb(17,85,204);font-size:12.8000001907349px" target="_blank">https://www.youtube.com/watch?v=9XXgW34t40s</a></div><div><a href="https://www.youtube.com/watch?v=NLaDpGQuZDA" target="_blank">https://www.youtube.com/watch?v=NLaDpGQuZDA</a><br></div></div></div></div></div></div><br>