Can you pls describe the message flow device-streaming server (TCP and UDP) for both cases:
1. With Proxy
2. Without Proxy?
I am trying to understand how an opeator needs to set-up the firewalls between the GGSN and the device and what are the benefits of using the Proxy.
Unfortunately firewall configurations are quite difficult and often require a large range of ports to be opened. It is also impossible to give a simple and comprehensive solution for the problem as the solution is strongly case-specific. For example the streaming server's version affects also firewall configurations.
Best place to find information about these firewall configuration issues is Realnetwork's document site at: