As you all know, IPv6 is the next generation Internet Protocol that intended to replace IPv4, which still powers 97% of Internet traffic worldwide as on Apr 2015. IPv6 is very much necessary as the address space supported by IPv4 is close to depletion. The primary goal to implement IPv6 is its technical benefits in addition to a larger addressing space which support huge number of devices. Here is a quick cheat sheet for the Network Administrators, who can download freely and refer for IPv6 related information.
You might also be interested to read our previous articles on IPv6.