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

[Benedek Frank <linux celifornia com>]

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

Ben

> > Ben
>
> Fabrice