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<p class="MsoNormal"><span style="font-family:"Garamond",serif">I’ve got two libnice instances that aren’t successfully negotiating with each other. I’d appreciate any suggestions on how to fix this. Logs are attached.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif">Process 1 is a native Linux amd64 exe using gstreamer. It’s trying to establish a webrtc connection to a server from behind a NAT firewall. This exe is using GStreamer 1.16. It’s running on Ubuntu
18.04. I’ve tried using the default 1.14 libnice as well as a privately compiled libnice 1.16. The security group is configured to allow all UDP to come in.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif">Process 2 is a Java app running on Ubuntu 18.04 on EC2. It’s also using GStreamer 1.16. It is using the default libnice 1.14 on the system.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif">Both processes leverage a stun server that I’m running. I’ve tried it with the public Google stun server with the same results.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif">I can see the two libnices exchange stun messages on viable addresses and ports. One appears to connect component 1 and the other connects component 2. Neither connects both. I’m quite puzzled
about why this is failing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif">I have not done a packet capture yet, nor have I walked through the libnice code. I could do both, but would love to get a solution that would save me that effort. Hope somebody on the list can
help.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif">Stuart<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Garamond",serif"><o:p> </o:p></span></p>
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