Ok I found out what this is.
Let's say you want to access an IPv6 site such as www.ipv6.org
from a Windows XP laptop, then you do the following:
1) Register with Hurricane Electric and setup a Tunnel for your public IP (You can see your public IP at www.whatismyip.com
2) Configure your XP laptop (or Linux) using the config commands that appear on the site. For e.g.
ipv6 rtu ::/0 2/::126.96.36.199 pub
ipv6 adu 2/2001:470:1f06:3e4::2
You might require admin level privileges (especially on Linux).
3) IE on Your XP laptop is now ready to connect to the IPv6 site. If you browse to www.ipv6.org
, it should show that you are using a IPv6 address. Few gotchas - Make sure your windows firewall is off. I was behind a NAT when I got this to work, so NAT doesn't seem to be a problem.
I hope this helps others.