Re: [GnomeMeeting-list] Gnomemeeting to Netmeeting, only one way and no video

[Benedek Frank <linux celifornia com>]

On Friday 10 June 2005 23:20, Damien Sandras wrote:
> Le vendredi 10 juin 2005 à 22:29 +0200, Benedek Frank a écrit :
> > On Friday 10 June 2005 22:15, Fabrice Alphonso wrote:
> > > On ven, 2005-06-10 at 17:24 +0200, Benedek Frank wrote:
> > > > Hi All
> > > >
> > > > I have a Debian box with Gnomemeeting, and I can send a call to
> > > > another Windows Machine in the same network, with video and two way
> > > > calling, etc. When I try this with another machine, that is over in
> > > > Japan, it refuses my call. When that machine calls, I can get the
> > > > call, and we can talk fine, but no video. Video would be going from
> > > > Gnomemeeting to Netmeeting.
> > > >
> > > > That Japanese netmeeting machine has a router in front, and that has
> > > > DMZ set up, basically an open flow gate to the machine from the live
> > > > world. I have access to the box via VNC, so I could set this all up.
> > > > Also SP2 firewall is punched for the necessary ports, but just to be
> > > > certain, I also disabled it for a little while, but still no go. And
> > > > nothing shows up in the Japanese Routers incoming log. As if the call
> > > > wasn`t even taking place.
> > > >
> > > > What I think in this nonsense situation (as for nonsense to me at
> > > > least), that the router on the Gnomemeeting end lets the traffic out,
> > > > but Netmeeting might also wants to open back a few ports to the
> > > > Gnomemeeting box, that might be blocked by the Router on my side? On
> > > > my side, only the few necessary ports are open, in the 1500 and 1700
> > > > range, sorry I forgot the exact ones.
> > > >
> > > > Thanks for any help, its frustrating,
> > >
> > > Generally, such video problem between GM and NM may be caused by two
> > > kind of problems.
> > > First one is the firewall/router related one.
> > > The FAQ ( http://www.gnomemeeting.org/index.php?rub=3 )  clearly tells
> > > that on GM side the usual ports to be opened (and eventually forwarded)
> > > are 1720 TCP, 5000 to 5016 UDP and in case of communication with
> > > NetMeeting 30000 to 30010 TCP. Luckily on GnomeMeeting side those ports
> > > are well defined.
> > > Unfortunately when the NM is behind a router/gateway, those ports are
> > > not sufficient as NM uses random ports :(
> > > Second one is the size of the video send to the NM which has to be
> > > small size (CIF), or the NM feels flooded and cut the connection.
> >
> > Hi
> >
> > All I had set up, except the 5000-5016 UDP ports forwarded to the
> > Gnomemeeting box. The Netmeeting has an open way to it from the router,
> > as it has DMZ set up. Now I opened the ports 5000-5016 toward the
> > Gnomemeeting box, and I can test it tomorrow. Is there a chance that this
> > was my problem? All the other ports were already opened and as I said,
> > the Netmeeting has no protection what so ever.]
> > Thanks
>
> Absolutely, but please read the FAQ as it is not sure it is the problem,
> it depends on the kind of NAT.

Hi

I finally had a chance to try it, and still no go. Now all possible ports are 
open on my GM and the NM has a router with DMZ support toward the NM, so it 
has open air. Calls innitiated from NM to GM comes through and Audio travels 
back and forth. Calls innitiated from GM to NM are rejected. GM shows "User 
did not accept the call". ANy other hints? ALso when I call from NM to GM, 
everything is fine, audio, but video does not go through from the GM side to 
the NM side. NM has no camera, so I couldnt try that. THanks.

Ben

>


> > Ben
> >
> > > > Ben
> > >
> > > Fabrice
> >
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