I'm fairly new to bitcoin and mining and am currently using a very restrictive ISP(port forwarding is not permitted). Therefore, it is not possible to connect to the bitcoin network(port 8333 is blocked). I also have a work station, in a different network, which doesn't share the above limitation. I am using ubuntu 12.04 and went for the OpenVPN package. I can connect to the remote machine but don't know how to route mining traffic through it. Also, I don't want to delegate mining tasks to the remote box as it is a low end machine. Is mining through a VPN tunnel possible in this context?