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

[Damien Sandras <dsandras seconix com>]

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.




> Ben
> 
> > > Ben
> >
> > Fabrice
> _______________________________________________
> GnomeMeeting-list mailing list
> GnomeMeeting-list gnome org
> http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
-- 
 _      Damien Sandras
(o-     GnomeMeeting: http://www.gnomemeeting.org/
//\     FOSDEM 2005 : http://www.fosdem.org
v_/_    H.323 phone : callto:ils.seconix.com/dsandras seconix com