[Freeswitch-users] ICE/DTLS handshake

[Mirko Brankovic]

Looks like the problem lies in fact that both call legs/channels in refer
call scenario are in my case outgoing legs, and then they are sending
CONTROLED stun username requests, so I don't have CONTROLING side.

while at the same time Video stun is negotiated immediately and correctly.
Log shows it I guess.
https://pastebin.freeswitch.org/view/33d30c7e

On Sat, Sep 23, 2017 at 3:12 PM, Mirko Brankovic <mirkobrankovic at gmail.com>
wrote:

> Thanks Mike,
> all clients are webrtc clients behind same freeswitch.
> At the same time video rtp/rtcp dtls is instant, but audio is waiting for
> something, my best guess is for rtcp from client to confirm correct ip.port
> or to do auto correct.
> Call scenario is A call B and B transfers(refer)  call to C.
> Also I see in those 5 seconds that first client, A sends total of 6 stun
> username requests and that C answers to them all at the same time, after 5s.
> Can this be rtcp problem.
> I was thinking to go through video ice thread and compare it to audio to
> see how that one works instantly.
> thanks,
> Mirko
>
>
>
> On Sep 21, 2017 19:55, "Michael Jerris" <mike at jerris.com> wrote:
>
> its not going to negotiate until we get the stun responses.  If we are
> not, you should look if the client is sending them and something is
> blocking, or why the client is waiting to send them.  Sounds broken on
> client side from the description.
>
> On Sep 21, 2017, at 7:53 AM, Mirko Brankovic <mirkobrankovic at gmail.com>
> wrote:
>
> HI,
> Has anyone experienced DTLS handshake takes 5s to get to SETUP state:
>
>> 2017-09-21 11:40:40.021178 [INFO] switch_rtp.c:3515 Changing audio DTLS
>> state from OFF to HANDSHAKE
>> 2017-09-21 11:40:45.319457 [INFO] switch_rtp.c:3172 Changing audio DTLS
>> state from HANDSHAKE to SETUP
>
>
> In network dump i see that answering side is not sending STUN for this 5s
> and then suddenly answers last 5 STUNs from A side.
>
> Has anyone encountered this kind of problem ?
>
> I have a pcap if necessary...
>
>
>
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-- 
Regards,
Mirko
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