Hi, i try at the moment to figure out what is the minimum port requiremnet for proxy use and some other stuff. i use the 2.2.1-2 executable for linux with two network cards. the proxy is on private ip behind a nat router and the second interface is connected to another private ip. the proxy act as a child gk with a parent gk at public IP. now i have setup the RTP port range at the proxy section from 5000 - 5020. the strange thing is that the proxy use for every seperate connection another 4 ports (audio + video) e.g. 5000- 5003 next 5004 - 5007 and if i place some calls at the end it use 5021 + some ports e.g. 5006-5008. 1.) why does the gnugk use 5021 if i specify the range only from 5000 - 5020 ? 2.) why the gnugk increment for each call the next 4 ports ? the same i saw for Q931 port range usage. 3.) if i place a call from outside (phone which is connected to the parent gk to phone which is at the child gk) the connection (audio + video) is established at once on both side. but if i place a call from the phone behind the child gk to a phone which is connect outside at the parent gk, the outside phone establish the connection at once and the inside phone take up to 2-3 seconds to establish audio and video. 4.) the child gk still crash if i have a nat router reconnection (with new public IP) if it tries to reregister with the parent gk. the parent gk sends a RRQ reject with request for full registration and than the proxy die. please help and give some hints thx TOM ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id 49 Homepage: http://www.gnugk.org/