Hello everyone!
I want multicast data among PCs which are far away from each other. They can be connected on internet.
So, I just set up a vpn server with win2003 server by its "route and remote access" service,
and then I created a "virtual private network (VPN) connection" on each client PC ,and connect the VPN Server on internet. I can successfully connect the VPN server on each client PC, and access the shared files with each other. The Client PCs also obtains the IPs I Set up on the VPN Server correctly.
And then I Programmed a simple C++ code which implemented multicast function with Sock function.
The code just creates a D Class IP such as 239.255.0.1, and sends the data to the IP Address I want to share among the PCs.
The Code does work on the LAN, but can't work on the VPN network I just set up. There is no response.
Is this idea wrong?