Tag Archives: OpenVPN

Multicast over “stupid” networks

IP multicast is an interesting technology. It’s main purpose is to save network bandwidth as much as possible – traffic is sent to hosts which asked for it only (as opposed to broadcast). On the other side, you need smarter (manageable) switches and separate and non-trivial configuration on both routers and switches. Even more complicated it is when you try to make it work over VPN. Continue reading