This could be demo'd very easily by gluing together:

udpcast (http://www.udpcast.linux.lu/satellite.html) -> Sends/receives files over UDP. Supports FEC.

netcat -> Join file I/O (from udpcast) to local TCP/UDP sockets

openvpn / iptables userspace -> Provide connection routing.

Seems like an evenings work.

Edit: udpcast might not be suitable for this. I am surprised noone has already built a simple UDP FEC tunnel program...