On mer, 2004-08-04 at 10:37 -0700, JCA wrote: > Actually, my setup is a bit more complex than I explained. In the > first place, I've got a DSL router D that exposes a single IP address > A to the external world. Directly behind that I have a Linux box L > with two network interfaces: one connected to D, and the other > connected to my home LAN. Gnomemeeting is running on another box H in > my LAN, not on L. > > I have made sure that connections to the ports relevant to > gnomemeeting are allowed in D, and are mapped to the same ports in L. > In turn, on L, using the IP tables incantations from the FAQs, those > ports are mapped again to the same ports in H. I use a similar setup > for other applications, like ftp, ssh, http, etc., which work fine. > > The question is, when configuring the gnomemeeting client to work > with NAT, what IP address S should I specify in the "Public IP of the > NAT/PAT router" box? > The one of the DSL router. There is also an option that permits to automatically discover that IP address. So all ports from the FAQ have to be forwarded from D to L and then from L to H. > The way I see it, from the point of view of my gnomemeeting client > in H, L is the interface to the external world, for L is what gives H > access to the net outside my LAN. Therefore, I would have thought that > S should be that of L's external network interface; that is, the one > it uses to connect to D. What is keeping me confused about all this is > that any incoming calls from hosts anywhere in the world are to be > addressed to D's external IP address A - which is the only one people > can use to reach me. > > I guess that another way of looking at it is to pretend that L does > not exist, and that H is directly connected to D and then to the world > - in which case S would have to be A. > > What is the right approach here? See above. Your public IP is the one from the DSL router, the one on which people are calling you, that's where the remote GM has to send packets. They are then forwarded from the DSL router to the Linux machine, and then from the Linux machine to the machine running GM. Don't forget to enable IP translation in the gnomemeeting preferences though. > _______________________________________________ > GnomeMeeting-list mailing list > GnomeMeeting-list gnome org > http://mail.gnome.org/mailman/listinfo/gnomemeeting-list -- _ Damien Sandras (o- GnomeMeeting: http://www.gnomemeeting.org/ //\ FOSDEM : http://www.fosdem.org v_/_ H.323 phone : callto:ils.seconix.com/dsandras seconix com
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