I don't believe OpenVPN makes any effort to prevent communications through other configured networks; it is designed to allow creating a virtual private network, not provide a mechanism to tunnel all other traffic off the system out of an untrusted network. I do not know if there are any drop-in easy tools to make this happen, but to my knowledge Tor is the closest fit -- and even then, only if you can select a specific exit node of your choosing, would it be relatively close to what I think you're trying to accomplish.
You may yet be able to accomplish what you wish with OpenVPN and the 'ip' or 'route' commands, but that's probably best handled at http://askubuntu.com/ instead. Thanks ** Changed in: openvpn (Ubuntu) Status: New => Won't Fix ** Information type changed from Private Security to Public Security -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openvpn in Ubuntu. https://bugs.launchpad.net/bugs/1266381 Title: OpenVPN does not stop IPv6 from leaking data To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/1266381/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs