[Freeswitch-users] ICE/DTLS handshake

Mirko Brankovic mirkobrankovic at gmail.com
Thu Sep 28 13:46:39 UTC 2017


actually the answering leg responds with CONTROLING request

On Thu, Sep 28, 2017 at 3:33 PM, Mirko Brankovic <mirkobrankovic at gmail.com>
wrote:

> 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
>



-- 
Regards,
Mirko
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