Dear Zsolt,
Sorry for late response. I think you should check your multicast connection. You can use multicast beacon. http://dast.nlanr.net/Projects/Beacon/ AG Connector shuts down if your site has multicast connection with UMTP Server. This might be the reason of dropping. And for firewall, in case of using iptables What you need to do is allowing outgoing traffic from your site and allowing incoming traffics which comes as a response of the outgoing traffic from your site. In /etc/sysconfig/iptables :OUTPUT ACCEPT [0:0] // default policy of outgoing traffic, ACCEPT -A INPUT -p udp --dport 1025: -m state --state ESTABLISHED,RELATED -j ACCEPT //allow incoming UDP traffics which comes as a response for the outgoing traffic from your site Or You can open udp port 8010(default AG Connector port) for both incoming and outgoing. :OUTPUT ACCEPT [0:0] // default policy of outgoing traffic, ACCEPT -A INPUT -p udp -dport 8010 -j ACCEPT AG Connector only uses one UDP port, 8010. If you need more help, let me know. Thanks for using AG Connector. Namgon Kim Netmedia Lab, GIST, KOREA http://netmedia.gist.ac.kr<http://netmedia.gist.ac.kr/> _____ From: Nagykaldi, Zsolt F. (HSC) [mailto:zsolt-nagyka...@ouhsc.edu] Sent: Friday, October 28, 2005 8:35 AM To: ag-t...@mcs.anl.gov Subject: [AG-TECH] AG Connector Our department is new to the AG world and we are in the process of setting up a room-based node to support our research infrastructure. Our network is not multicast enabled, so we have been trying to make the AG Connector work for weeks now and just about to give up. The documentation of the connector is very sub-optimal, to put it politely. In AG connector -driven multicast, if we manage to keep the connection to the server, which is dropped often, the other parties, who HAVE multicast enabled on their networks can not see or hear us at all (we can hear and see them). In unicast, without the connector, everything works both ways, but we can not see any of the parties (no incoming video), although we can hear them. I know that certain UDP ports must be open, but it must be more complicated than that, since *rarely* the whole system seems to be working well. The connector seems to work unreliably in many situations and outcome is often unpredictable. If you have suggestions to both scenarios (multicast with connector and unicast without), PLEASE, help us. Thanks! Zsolt _ _ _ Zsolt Nagykaldi, PhD Research Associate, Clinical IT Specialist University Of Oklahoma Health Sciences Center Department Of Family And Preventive Medicine Oklahoma Center For Family Medicine Research 900 NE 10th Street Oklahoma City, OK 73104 Phone: (405) 271-8000 Ext.:1-32212 Fax: (405) 271-1682
