Guide on how to setup 6in4 for he.net and also the auto dns update

[GoogleCodeExporter]

What steps will reproduce the problem?

I was able to figure out the steps to get 6in4 working on my router.

However was unable to get ddns setup correctly (ISP has dynamic dns and hence 
needs to be updated)

It would be nice if a simple guide could be setup to help out not so 
technically inclined users like me

What is the expected output? What do you see instead?

-

What version of the product are you using? On what operating system?

    3.0.2.6-018

Please describe the problem as detailed as it's possible.
If you have connection problem, then syslog file is required. (please do
attach it as a file)
Note that if there will be a poor problem description the issue status will
be changed to 'Invalid'!

Original issue reported on code.google.com by jayson.wzy on 6 Oct 2012 at 4:22

[GoogleCodeExporter]

http://code.google.com/p/wl500g/wiki/GUIIPConfigIPv6HowTo6in4

For auto-update tunnel IP via DDNS select DDNS WWW.TUNNELBROKER.NET and set 
hostname=TunnelID and user/passw from HE registration.

Original comment by andy.pad...@gmail.com on 6 Oct 2012 at 10:37