Re: [GnomeMeeting-list]Sound only one way.

[Daniel Devost <devost isc astro cornell edu>]

Check this one out also. It works even if you don't have
root access to the firewall machine which I don't know
if it is the case with the newnat filter. Vtund worked really
well for me behind the firewall of a private company.

http://vtun.sourceforge.net/

Daniel

On Sun, 28 Oct 2001, Damien Sandras wrote:

> Hi!
> There can be 3 reasons to your problem :
> * If the firewall is natted, and it is certainly is, you have to install the newnat netfilter
> patch for H.323 :
> http://www.kfki.hu/~kadlec/sw/netfilter/
>
> (Browse the mailing list for installation instruction)
>
> H.323 uses/relies on the
> following data streams:
>
> 	Port		Description
> 	389 		Internet Locator Server (TCP)
> 	522		User Location Server (TCP)
> 	1503 		T.120 Protocol (TCP)
> 	1720		H.323 (H.225 call setup, TCP)
> 	1731		Audio call control (TCP)
> 	Dynamic		H.245 call control (TCP)
> 	Dynamic		RTCP/RTP streaming (UDP)
>
>
> * There can be an iptable rule that drops the audio packets.
>
> * Your audio module is not full duplex; try to use ALSA modules (http://www.alsa-project.org) instead of kernel modules.
>
>
> Hope it helps;
>
> Damien
>
> On Sun, 28 Oct 2001 01:43:44 +0300
> Dan Nedelcu <dan digisoft ro> wrote:
>
> > Hi,
> >
> > I have a problem with sound, as follow:
> >
> > I have RH7.1 on my linux box,conected thru a firewall on another linux box.
> > I have an internal IP address .
> > I try to speek with a friend , who have only a linux box with real IP,
> > firewall and RH7.1
> > I make the call, we make a connection and my friend here my voice, I do'nt
> > here him.
> > If the problem is the firewall, please advice me what rules to insert.
> >
> > Thanks,
> > Dan Nedelcu
> > _______________________________________________
> > Gnomemeeting-list mailing list
> > Gnomemeeting-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
> >
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>

-- 
Daniel Devost
Cornell University
108 Space Sciences Building
Ithaca,  NY
USA 14853

devost astro cornell edu
607 255 7504