Hi Tommy, Why must the endpoint not register with your GK? If it is registered somewhere else, perhaps the other GK can handle the NAT traversal. If the EP has its own call routing logic, it may be smart enough to have NAT traversal logic, too. What kind of softphones, ATAs, or IP phones are used for endpoint A? Is it possible to replace them with something smarter about NAT? Since you appear to be using a dedicated public IP for the endpoint, can you take that address out of the router configuration, and put the endpoint directly on the public IP (using a software firewall if EP is a softphone)? --Stewart ----- Original Message ----- From: Tommy Lee To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Sent: Wednesday, February 15, 2006 10:51 PM Subject: NAT voice problem calling from a non-registered endpoint Hi, Background: I have an endpoint (A) behind a non-H323 aware router and One-to-One NAT has been configured on the router. In another word, this endpoint has its own fixed NATed WAN ip but the router will not rewrite the h.225 address for it. My GNUGK and another endpoint (B) are non-NATed with fixed IPs. Case 1: When both endpoints are registered to the gatekeeper and they worked fine when the gatekeeper are configured in the h323 proxy mode. [RoutedMode] GKRouted=1 SupportNATedEndpoints=1 [Proxy] Enable=1 Case 2: However, my requirement is to use a non-registered NATed endpoint (A) calling from/to endpoint (B) where endpoint (B) is still registered to the gatekeeper. I had tried many different scenarios without success. Below setting is the closest match setting to my requirement. [RoutedMode] GKRouted=1 H245Routed=1 CallSignalPort=1720 AcceptUnregisteredCalls=1 SupportNATedEndpoints=1 [Proxy] Enable=1 This setting allow endpoint (A) communicate with endpoint (B) by calling to the gatekeeper via h323 proxy mode. But unfortunately, after call setup, endpoint (A) cannot hear anything because all return media traffic goes to endpoint (A)'s private address. In another words, the gatekeeper did perform h323 proxy but it did not handle NAT when the endpoint is not registered. Moreover, for testing purpose, I tried to replace the NAT router with a "h323 aware" NAT router (under the same gnugk configuration) and the problem has gone right away. But due to cost constraint, router replacement is not an option here since there are plenty of them under my network. Are there any gnugk setting(s) which can overcome this issue? Thanks for your help in advance. Thanks and regards, Tommy ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________________ 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/
