Hi Ed, The "IP Telephony Cookbook" linked from http://www.gnugk.org/h323infolinks.html, has good descriptions of the firewall and NAT issues affecting H.323 In a typical home broadband NAT router situation, you need to deal with both the firewall and the NAT problem. Setting the H.323 client as the router's DMZ destination, takes care of the firewall. And telling the H.323 client what the router's external public IP address is, will correct the NAT issue. GNUGK has some options that let it compensate for the NAT issue, which may be useful if the endpoint can't be setup to know about it's public IP. Specifically turning on the SupportNATedEndpoints option will help. I believe some endpoints are starting to include NAT traversal strategies like STUN (common in SIP endpoints), and there is some activity relating to that in newer H.323 standards. I hope that helps you. -Ben University of Washington On Thu, 1 Mar 2007, Ed Greenberg wrote: > Coming from the SIP world, I'm trying to get my head behind H.323 for > Videoconferencing. > > I have GNUGK set up with several endpoints on the public Internet, and > all seems good, but when I try to research NAT settings, everything I > read says that you can't do this without firewall holes and ports mapped > to specific addresses. > > Am I missing something? > > If I send somebody home with an H.323 endpoint, do I need to get into > their firewall and open holes? > > Besides 1720, which ones? > > If there is something I should read, I haven't found it, and a pointer > would be much help. > > Thanks, > </edg> > > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________________ Posting: mailto:Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Unsubscribe: http://lists.sourceforge.net/lists/listinfo/openh323gk-users Homepage: http://www.gnugk.org/
