Re: [GnomeMeeting-list] through NAT without _any_ forwarding - this seems to be possible!

[Damien Sandras <dsandras seconix com>]

le sam 09-11-2002 à 11:51, Rafa³ Kleger-Rudomin a écrit :
> Damien Sandras <dsandras seconix com> writes:
> 
> 
> > And you cannot really control who is starting the audio/video
> > connection. It doesn't depend of who is calling/called. That is
> > negotiated in the protocol.
> 
> I was called couple of times by clients that are behind NAT, both GM and NM.
> In all cases in I got audio/video from them. Conclusion: when NM/GM 
> client calls other GM client, they always negotiate that the caller initiates
> all connections.

[...]
I can assure you it is not the case.


>  
> > I understand the admin doesn't want to make any effort to make NM work
> > from behind the firewall, because it would need to allow all imaginable
> > ports. They are all random in Netmeeting.
> 
> I do not know what he want or not because he doesn't respond.
> 
> I can see that you are not very enthousiastic about my idea ;)

Well, I'm not really enthousiastic to do it myself, because it is of no
use. It will only work from time to time, and not always.

> Is that because NM is the second endpoint? If it works, it is also 
> solution for GM users.

I don't think it is a good solution, as there is no certitude it will
always work, even if you are called. Moreover, it is a hack for
misconfigured firewalls with Netmeeting behind. If you want to implement
it, then let's go, but I don't think it is very useful except in your
case where you will get 50% success.

> 
> I want to simply try it. Tell me please, can I change this address 
> from GM code, or do I have to hack openh323? Where should is start?
> 

You have to hack first in openh323 (look how the current IP translation
is implemented), then you will have to hack in GnomeMeeting itself. It
is much work for a bad solution.

> Regards,
> Rafal
> 
> -- 
> Rafa~ Kleger-Rudomin (klakier pld org pl)
> 
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-- 
Damien Sandras 

GnomeMeeting - H.323 Video-Conferencing application -
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FOSDEM 2002  - Free Software and Open Source Developers Meeting -
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