Re: [GnomeMeeting-devel-list] SIP, RTP ports and firewall

[Daniel Huhardeaux <devel tootai net>]

Damien Sandras a écrit :

> Le lundi 21 novembre 2005 à 23:46 +0100, Daniel Huhardeaux a écrit :
>
>  
>
> > I started gconf-editor and modify RTP ports to 6970:6990, then run GM, 
> > then the druid: "NAT avec restriction de port" (NAT with restriction 
> > port), called 612 fwd pulver com and call went smooth.
> >
> > I closed GM, modify RTP ports to 16384:16388, run the druid: "NAT avec 
> > restriction de port" (NAT with restriction port), called 
> > 612 fwd pulver com and call failed like reported above.
> >
> > I have some difficulties to understand why changing the RTP ports should 
> > interfere with STUN. Remember that registration is always ok.
> >    
>
> STUN is using those local ports to determine the holes on the gateway.
>
> Unfortunately, I have no idea why STUN reports NAT with restricted
> ports, and works with some ports, but not with others.
>
> Perhaps Craig has an idea?
>  
Got it:

RTP port range has to have minimum 9 ports eg 16384:16392 or 6170:6179 
If this condition is fulfilled, everything is working well: you can 
place how much calls you want, STUN is OK, no crashes, life is 
beautifull (anyway) ;-)

Another thing to know is that for udp_port range, even if you put 
5060:5060, ports till 5072 (more?) are used. I put those range to 
42600:42700 and it's working. This can avoid the problem of few softs 
running on the same computer, listening to 5060, 5061,....

--
Daniel