Hi Ganbold, > Does gnugk support RTP proxying? Sure, see http://gnugk.org/gnugk-manual-4.html . In section [RoutedMode], set: GKRouted=1 H245Routed=1 SupportNATedEndpoints=1 then see section [Proxy] for various details. > Because I'm having trouble making call in following scenario: > > endpoint1<->NAT<->endpoint2 (Both endpoints behind same NAT and NAT is > Symmetric NAT) Where is the GK? I assume that it is on a public IP. Is the NAT H.323-aware? When your endpoints register, do you see the private address in the RCF console message? If not, the NAT is not altering H.323 packets, and it should work without RTP proxy. However, for incoming calls to work at all, you'll need to forward the call signaling ports across the NAT. This means that the endpoints must be capable of configuring different call signal ports. However, if you see only the public address in RCF, then the NAT is trying to be smart, and might not handle the "hairpin" case properly. Try setting Enable=1 and ProxyForSameNAT=1 . Also, you might try setting CallSignalPort=1720. If you already have this, try removing it. > It seems like call signalling works fine, however RTP side is not working. > Call connection is establishing, but no voice in both direction. > If the above does not help, try to find out precisely what is going wrong. Start by running Ethereal on the GK machine. Do you see public addresses inside H.323 packets coming from the endpoints? If so, then either the NAT is modifying the packets, or the endpoints might have some NAT traversal logic. You may need to capture packets on the LAN side of the NAT to see what is happening. Good luck, Stewart > thanks, > > Ganbold > > > ------------------------------------------------------- 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_id=6595&alloc_id=14396&op=click _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id=8549 Homepage: http://www.gnugk.org/
