This question is an exact duplicate of:
I have set up a VPN server using OpenVPN on my home Ubuntu 10 box as a means to access my home network drives and media drives whilst at work and on the move. I get a valid connection, can ping and connect to any node on the network successfully, I can access my network drives, but not the media drive.
A bit of digging suggests that this is something to do with 'multicasting' accross the VPN. I can't seem to find any information on this, and cant seem to find any settings in the OpenVPN config nor options files.
If multicasting needs to be enabled somehow, how can I achieve this? If I am missing the issue here, can someone enlighten me on my failures?
Thanks guys and girls.