All about IPV6

Cisco IPV6

http://www.cisco.com/en/US/technologies/collateral/tk648/tk872/tk373/technologies_white_paper_09186a00802219bc.html

Allocation

http://www.apnic.net/publications/media-library/documents/resource-guidelines/ipv6-guidelines

Calculator

http://www.subnetonline.com/pages/subnet-calculators.php

Reference

http://www.ripe.net/internet-coordination/ipv6

http://electronicdesign.com/article/embedded/What-Is-The-Difference-Between-IPv4-and-IPv6.aspx

http://www.apnic.net/community/ipv6-program

What to do?

http://www.ipv6actnow.org/info/how-to/government/practical-deployment/

Everything u need to know

http://arstechnica.com/hardware/news/2007/03/IPv6.ars/1