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From: Juliusz Chroboczek <>
To: "Michael Ströder" <>
Cc: "" <>
Subject: [Galene] Re: STUN and TURN
Date: Fri, 08 Jan 2021 17:41:04 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

> So I wonder whether using stun: and turn: URLs in the ICE config make sense.

It's not useful, it will only slow down connection establishment.  Every
TURN server acts as a STUN server, if you have a TURN server it will be
used for STUN candidates.

> Do the browsers prefer STUN-trickled addresses over relaying via TURN if
> both are configured.

Yes, Rosenberg is competent ;-)  RFC 8445 Section

   The RECOMMENDED values for type preferences are 126 for host
   candidates, 110 for peer-reflexive candidates, 100 for server-
   reflexive candidates, and 0 for relayed candidates.

("Server-reflexive" means STUN, "relayed" means TURN.)

Browsers are free to tweak the priorities, and chrome correctly sets
a slightly higher priority for Ethernet than for WiFi:

   When choosing type preferences, agents may take into account factors
   such as latency, packet loss, cost, network topology, security,
   privacy, and others.

-- Juliusz

      reply	other threads:[~2021-01-08 16:41 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-08 16:08 [Galene] " Michael Ströder
2021-01-08 16:41 ` Juliusz Chroboczek [this message]

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