I 'm migrating an old real machine to a virtual machine at a hosting company who does not have native IPv6. I want to run an IPv6 tunnel the same as on the real hardware, but the regular incantations won't work. I found http://kb.parallels.com/en/696 which explains how to get TUN working, and verified that on an openvz machine to which I have host root access, using http://tb-tun.googlecode.com . But most of the IPv6 tunnel schemes use SIT - on the openvz host, the sit module is installed but in the container, I cannot bring up the sit0 interface. I have to run a userspace process to open /dev/net/tun Is it possible to enable sit for the container ?