http://fixme.ch/w/index.php?action=history&feed=atom&title=NATTraversal 2026-06-05T13:20:32Z Revision history for this page on the wiki MediaWiki 1.25.1 http://fixme.ch/w/index.php?title=NATTraversal&diff=14832&oldid=prev 2021-04-09T18:42:59Z

<p>Created page with &quot;NAT Traversal protocols are heavily used for audio and video conferencing (like Jitsi or WorkAdventure used in <a href="/wiki/Virtual" title="Virtual">Virtual</a>). == Protocols == === STUN === [https://en.wikip...&quot;</p> <p><b>New page</b></p><div>NAT Traversal protocols are heavily used for audio and video conferencing (like Jitsi or WorkAdventure used in [[Virtual]]).<br /> <br /> <br /> == Protocols ==<br /> <br /> === STUN ===<br /> <br /> [https://en.wikipedia.org/wiki/STUN STUN] ([https://tools.ietf.org/html/rfc5389 RFC5389]) is used by clients to figure out which IP and port their traffic if being natted to.<br /> <br /> Ports: 3478 for UDP and TCP, and 5349 for TLS<br /> <br /> === TURN ===<br /> <br /> [https://en.wikipedia.org/wiki/Traversal_Using_Relays_around_NAT TURN] ([https://tools.ietf.org/html/rfc8656 RFC8656]<br /> ) is used as fallback for relaying traffic between clients when NAT traversal using STUN failed.<br /> <br /> By default, TURN runs on the same ports as STUN: 3478 for TURN over UDP and TCP, and 5349 for TURN over (D)TLS.<br /> <br /> == Troubleshooting notes ==<br /> <br /> Tcpdump capture filter: &lt;pre&gt;port 3478 or port 5349 or port 19302&lt;/pre&gt;.</div>

Francois