If your running netmeeting and gnugk on the same box, then most likely one of your applications is already using port 1720. You cannot have both applications running and listening on the same port. Change gnugk to listen on a different port if you want to make both applications work on the same box. Then you must send your h225(q931) messages to the new port gnugk is listening on. This could be the problem. Freddy -----Original Message----- From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Michael Kendall Sent: Wednesday, March 02, 2005 1:55 PM To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Subject: natted endpoints No one on this message board has addressed the question of why netmeeting/gnugk tunneling works fine when split across two computers, but fails mysteriously when netmeeting/gnugk are running on the same machine. Is it a bug in netmeeting? Or is it a bug in gnugk which could be fixed with simple modification to the gnugk code to make it cope with netmeeting's minor foolishness? Perhaps the developers can comment upon whether this issue has been examined. Dismissing this complex problem with the statement that "netmeeting is bad" is not really an in-depth analysis. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_ide95&alloc_id396&opÌk _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id?49 Homepage: http://www.gnugk.org/