Hi - Hope somebody can assist... I am using gnugk 2.0.7 with 3 H323 gateways: A cisco 3600, Asterisk IP PBX, and Cisco Call Manager v3.3 All 3 gateways can register with no problems with no security configured. But when I enable AliasAuth I find that Call Manager is receives a securityDenial in repsonse to RRQ. The others register fine. GK Config: [Gatekeeper::Auth] AliasAuth=required;RRQ [RasSrv::RRQAuth] callmgr_6=sigip:10.5.100.4:1720 cisco-gw=sigip:10.5.100.1:1720 asterisk-gw=sigip:10.5.100.2:1720 Failed Call Manger registration: 2005/02/22 17:33:58.748 2 RasSrv.cxx(2392) GK Read from 10.5.100.4:3313 2005/02/22 17:33:58.749 2 RasSrv.cxx(2407) GK Received registrationRequest 2005/02/22 17:33:58.749 1 RasSrv.cxx(1002) GK RRQ Received 2005/02/22 17:33:58.749 2 gkauth.cxx(448) GkAuth AliasAuth checkfailed 2005/02/22 17:33:58.749 2 RasSrv.cxx(1295) RRJ|10.5.100.4|callmgr_6:h323_ID|gateway|securityDenial; 2005/02/22 17:33:58.750 2 RasSrv.cxx(2334) GK Send registrationReject to 10.5.100.4:3313 Here is the successful cisco 3600 registration: 2005/02/22 17:39:48.604 2 RasSrv.cxx(2392) GK Read from 10.5.100.1:50964 2005/02/22 17:39:48.604 2 RasSrv.cxx(2407) GK Received gatekeeperRequest 2005/02/22 17:39:48.605 1 RasSrv.cxx(900) GK GRQ Received 2005/02/22 17:39:48.605 2 RasSrv.cxx(975) GCF|10.5.100.1|cisco-gw:h323_ID|gateway; 2005/02/22 17:39:48.605 2 RasSrv.cxx(2334) GK Send gatekeeperConfirm to 10.5.100.1:50964 2005/02/22 17:39:48.611 2 RasSrv.cxx(2392) GK Read from 10.5.100.1:50964 2005/02/22 17:39:48.612 2 RasSrv.cxx(2407) GK Received registrationRequest 2005/02/22 17:39:48.612 1 RasSrv.cxx(1002) GK RRQ Received 2005/02/22 17:39:48.613 1 RasTbl.cxx(64) New EP|10.5.100.1:1720|cisco-gw:h323_ID|gateway|8436_endp 2005/02/22 17:39:48.613 2 RasSrv.cxx(1257) RCF|10.5.100.1:1720|cisco-gw:h323_ID|gateway|8436_endp; 2005/02/22 17:39:48.614 2 RasSrv.cxx(2334) GK Send registrationConfirm to 10.5.100.1:50964 Any help much appreciated! Tim ------------------------------------------------------- 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/