On 10/6/15 10:26 AM, ors.szabo...@gmail.com wrote:
Thanks Eric.
According to: https://tools.ietf.org/html/draft-ietf-mmusic-trickle-ice-02,
Chapter 5.1:
" As mentioned earlier in this section, Offers and Answers can contain
any set of candidates, which means that a trickle ICE session
description MAY contain no candidates at all. In such cases the
agent would still need to place an address in the "c=" line(s). If
the use of a host address there is undesirable (e.g. for privacy
reasons), the agent MAY set the connection address to IP6 ::. In this
case it MUST also set the port number to 9 (Discard). There is no
need to include a fictitious candidate for the IP6 :: address when
doing so."
I interpret this that the browser MAY use IP6 :: in the SDP c-line in case
there are no ICE candidates. In my case, host candidates exist, still the
c-line contains no IP. Is this correct behavior?
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Not exactly, but the only reason the address in the c-line is there
is for endpoints that don't support ICE. Webrtc endpoints must support
ICE (since the DTLS handshake is not allowed to begin until ICE
completes), so they should not be using that address. However, for the
sake of interop we're making this change over here:
https://bugzilla.mozilla.org/show_bug.cgi?id=1192813
Best regards,
Byron Campen
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