Transition from IPv4 to IPv6

What is Tunneling ??
What is Dual Stack ?
What is Header Translation ?

IPv6 is not backward compatible with IPv4, these are two different protocols. Therefore, it is impossible to switch the entire internet over to IPv6 Overnight. Hence, the pragmatic approach is to make these two versions work side by side. And this may last long (Even a decade) , and for that a transition mechanism is needed to bridge between IPv4 and IPv6.

References :
https://docs.oracle.com/cd/E19683-01/817-0573/transition-10/index.html
http://www.tutorialspoint.com/ipv6/ipv6_ipv4_to_ipv6.htm.
http://www.networkworld.com/article/2265836/lan-wan/biggest-mistake-for-ipv6–it-s-not-backwards-compatible–developers-admit.html
http://www.txv6tf.org/wp-content/uploads/2010/08/Muhummad-Tutorial-ipv6-basics.pdf

Link to my Blog .
https://zaidmufti.wordpress.com/ .