tb-tun

tb-tun is an tiny userspace program to build 6to4/tunnelbroker/ISATAP tunnel for Linux.
The host kernel should have ipv6 stack and supports TUN/TAP.
Generally the program should run with the root privilege.

Usage

# Only for OpenVZ VPS
setsid $(which tb-tun) tb-tun <server ipv4> <client ipv4> sit > /dev/null 2>&1&
sleep 1
ifconfig tb-tun up
ifconfig tb-tun inet6 add <client ipv6>
ifconfig tb-tun mtu <mtu>
route -A inet6 add ::/0 dev tb
ip -6 route del default dev venet0

Better forks

• https://github.com/Blaok/tb-userspace