[Webkit-unassigned] [Bug 173307] WebRTC: STUN / TURN do not seem to work properly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173307

Danilo <db at threema.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|CONFIGURATION CHANGED       |---

--- Comment #13 from Danilo <db at threema.ch> ---
youenn,

I tested again, with your trickle ice example:

https://youennf.github.io/webrtc-tests/src/content/peerconnection/trickle-ice/

When using "stun:turn.threema.ch", gathering srflx candidates seems to work indeed. Same counts for "turn:turn.threema.ch" with correct credentials (this also includes relay candidates).

We did indeed change something about the configuration: The DNS server for turn.threema.ch used to return both A records (IPv4) and AAAA records (IPv6). Now it only returns A records (see "dig +short AAAA turn.threema.ch").

We created another hostname for dual-stack access: ds-turn.threema.ch with both A and AAAA records (see "dig +short AAAA ds-turn.threema.ch"). Both DNS names return the same three server IPs running Coturn.

While gathering srflx candidates in Safari 11 works with stun:turn.threema.ch, it does not return any results for stun:ds-turn.threema.ch. It does work in Chrome however. So maybe this could be an issue with IPv6?

Danilo

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