Yes, this is possible. It's practical only if your public IP is static, or if it doesn't change often and your endpoints can find the GK by dynamic DNS. In addition to UDP 1718 and 1719, you need to forward TCP port 1721 (or whatever you are using for CallSignalPort). If you cannot avoid separate H.245 channels by tunneling and/or Fast Start, define H245PortRange and forward those TCP ports. Define RTPPortRange and forward those UDP ports. You need four ports for each concurrent call. For initial testing, you may want to set the GK as the DMZ host, so you can be sure that port forwarding is not a problem. Of course, first verify that the GK machine doesn't have other services running that would result in a security risk. You have to set NetworkInterfaces with your LAN and public addresses. --Stewart ----- Original Message ----- From: "Mahesh M Pawar" <mmpawar@xxxxxxxxx> To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> Sent: Wednesday, November 10, 2004 9:12 PM Subject: Firewall/DSL/GNUGK Hi Everybody, I am trying to run GNUGK on a local NAT system and trying to reach it through my firewall enabled router. Is this possible ? if yes then what ports do I need to open and point to my local system. I have DSL router, which is connected to DSL WAN(public ip, 192.168.2.1) and my server is a local machine with ip 192.168.2.31. I have opened ports on the firewall for 1718-1720, 1024, 16384 to point to 192.168.2.31. But still no connections. Please let me know this is possible or not, if yes how do I do. I have read the proxy but did not understand because I am new to VOIP. Thanks in Advance. Mahesh ------------------------------------------------------- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Homepage: http://www.gnugk.org/
