[libnice] sometimes connectivity checks fail...

[Philip Withnall]

Can you please provide a debug log from libnice for this? It’s hard to
work out what the problem is otherwise.

Does the component state change to NICE_COMPONENT_STATE_FAILED? If you
wait, does it later change to NICE_COMPONENT_STATE_READY or
*_CONNECTED? What are you waiting for to know when the connection is
ready?

What version of libnice is this with? 0.1.13, or master? Can you try
with master?

Philip

On Thu, 2015-12-24 at 21:40 +0800, Jack Wang wrote:
> I also test by using the random ports , which is used originally in
> libnice,
> and found it also fails sometimes, 
> however,  it still can work in some later calls.
> 
> Keep tracking and testing....:P
> 
> 2015-12-24 21:20 GMT+08:00 Jack Wang <antirazin at gmail.com>:
> > Hi, everyone
> > 
> > For several media channels (ex: audio,video etc.),
> > I create ICE agents for each of them,
> > and each channel I used a fixed port which is a fixed RTP port.
> > 
> > Then after I did a SIP call to exchange the ICE SDP with the
> > callee,
> > I found the one who sent the offer often failed on negotiation on
> > some channels (not the same ones every time), 
> > while the answer one is always OK.
> > And if failed on the first time, it will always fail in the
> > following calls.
> > 
> > The Offer one is behind a symmetric NAT, and the Answer one is on
> > WAN.
> > I trace the log and found the failed(for negotiation) ones always
> > discover the prflx candidate very late, and cannot be READY state
> > in the end.
> > 
> > I cannot figure out why this happens,
> > does it is related to the NAT policy for port forwarding??
> > 
> > 
> > Thanks in advance :)
> > 
> > 
> > 
> _______________________________________________
> nice mailing list
> nice at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nice
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