Introduction
We will create an IPv6 tunnel (provided by Hurricane Electric suitable for subnetting (/48).
Configuration
In /etc/hostname.gif0:
tunnel 207.246.122.61 209.51.161.14 !ifconfig gif0 inet6 alias 2001:470:1f06:95f::2 2001:470:1f06:95f::1 prefixlen 128 !route -n add -inet6 default 2001:470:1f06:95f::1
Enable it (as root):
sh /etc/netstart gif0