MS Netmeeting

[jungle]

NetMeeting uses dynamic ports for video and voice, does anyone know what range of ports they use? Some of my users could make use of this software if i could get it to work / my firewall.

tia...

 

[sohcrates]

I found this here

The short answer is that data conferencing (shared apps, whiteboard, chat) can be implemented in the outbound direction through the Firewall Server. This can be done by creating user defined proxies on TCP ports 389, 522 and 1503. Video and audio streaming are more difficult, as they require dynamic port assignments, and hence cannot be done through BorderWare.

To enable NetMeeting multipoint data conferencing, your firewall only needs to pass through primary TCP connections on assigned ports. For NetMeeting to make calls with audio and video conferencing, your firewall must be able to pass through secondary TCP and UDP connections on dynamically assigned ports. Some firewalls can pass through primary TCP connections on assigned ports, but cannot pass through secondary TCP or UDP connections on dynamically assigned ports.

Note: NetMeeting audio and video features require secondary TCP and UDP connections. Therefore, when you establish connections through firewalls that accept only primary TCP connections, you will not be able to use the audio or video features of NetMeeting. To establish outbound NetMeeting connections through a firewall, the firewall must be configured to do the following:

pass through primary TCP connections on ports 389, 522, 1503, 1720, and 1731.
pass through secondary TCP and UDP connections on dynamically assigned ports (1025-65536).

maybe it'll help