Re: [GnomeMeeting-list] Can't hear other participant

[Niall Parker <niall ve7hex ampr org>]

Paulo Jorge Matos wrote:
> On 07/12/05, Niall Parker <niall ve7hex ampr org> wrote:
>
> > Paulo Jorge Matos wrote:
> >
> > > Hi all,
> > >
> > > This seems to be an intriguing case. The facts:
> > > - Everything works with both in druid.
> > > - Both use Gentoo Linux Gnome Meeting 1.00
> > > - I'm behind router, she isn't. Router is not a problem. Have 1720
> > > opened. Still removed router from the way and directly connected to
> > > the internet I can't hear her.
> > > - Both using alsa, blablabla but since druid works with both sure
> > > isn't problem with sound I think.
> > >
> > > Can't imagine what's the problem. She can hear me, I can't hear her.
> > > Any ideas, crazy suggestions? I'm all ears!
> >
> > What about the UDP ports for the RTP streams ? Is your firewall
> > open/ports redirected etc ? What does netstat say ?
>
>
> Yes, I have open ports in router:
> 1720,
> 30000-30010
> 5000-5016
> 5020-5023
>
> How can I query netstat about this?

Try netstat --inet --udp (or --tcp) and you'll see what connections are 
active (man nestat for lots more options). I've also used tcpdump to 
help track down problems, see the man page to help filter out the 
extraneous noise.

Check and double check the firewalls, I just spent a day fixing a 
connection where the other party insisted the firewall was open, but it 
turned out that while the rules to forward the traffic were written, 
they weren't enabled. Try a portscanner like nmap.

Also use divide and conquer ... check your connection with a known good 
endpoint and likewise for the other person you are trying to connect with.

Persist, you will figure it out eventually (and learn something in the 
process ;)

					... Niall