[libnice] STUN binding requests being rejected by ChromeOS

Philip Withnall philip at tecnocode.co.uk
Tue Nov 17 16:40:41 PST 2015

Hi Ishan,

On Thu, 2015-10-01 at 11:39 -0400, Ishan Mandrekar wrote:
> > I'm testing interoperability between a webrtc implementation using
> > libnice against that of Google ChromeOS (version: 45.0.2454.98
> > channel: stable) running on an Asus Chromebook. The STUN Binding
> > Requests sent by libnice do not result in corresponding Binding
> > Success Responses by ChromeOS. I can confirm via packet capture
> > that
> > the STUN requests do reach the Chromebook but there are no
> > responses
> > generated. Any thoughts on what could be going wrong?
> > Interestingly,
> > the STUN mechanism works perfectly with the latest Chrome browser
> > running on Windows or Mac.
> > 
> > I'm running release 0.1.13 of libnice.

Sorry for the slow response. Did you manage to work out what the
problem was here?

The approach I would take to debugging this would be to compare the
STUN Binding Requests sent by libnice against the ones sent by Chrome,
and see how they differ. It is likely the difference which is causing
Chrome to get a response when libnice doesn’t.

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