1. Why it's not being used
1.1. Usage Rates
1.1.1. Delaying the inevitable
1.1.2. IPv6 Statistics. 22 5 2011. 31 5 2011 http://www.google.com/intl/en/ipv6/statistics/
1.2. Major infrastructure overhaul
1.2.1. Many devices are IPv4
1.2.1.1. Computers
1.2.1.2. routers
1.2.1.3. modems
1.2.2. Expensive
2. How to make the transition
2.1. Transition
2.1.1. Dual Stack
2.1.2. Tunneling
2.1.3. Protocol Translation
2.1.4. Ladid, Latif. "IPv6 - The next big bail-out: will IPv6 save the internet?" CompSysTech '09 Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing. New York, NY: ACM, 2009.
2.2. Deployment
2.2.1. Upgrade Everything
2.2.1.1. Usually not very effective
2.2.2. Work from the outside In
2.2.3. One thing
2.2.3.1. dependencies must also be changed
2.2.4. Limoncelli, Thomas A. and Vinton G. Cerf. "Successful strategies for IPv6 rollouts.: Really." Communications of the ACM April 2011: 44-48.
2.2.5. Larger scale implementation
2.2.5.1. CIR
2.2.5.2. Ramadass, S. and R.K. Murugesan. "IPv6 address distribution: An alternative approach." Broadband Network and Multimedia Technology (IC-MNMT). IEEE, 2010. 252.
3. What makes it better
3.1. vs IPv4
3.1.1. More IP addresses
3.1.1.1. 128-bit vs 32-bit
3.1.1.1.1. 2^32 = 4.3 billion
3.1.1.1.2. 2^128 = 340 undecillion
3.1.2. Easier Multicasting
3.1.2.1. Prefix allows for 2^32 routable groups
3.1.3. Simplified Headers
3.1.3.1. Removed unused fields
3.1.4. Extensible Headers
3.1.4.1. Additional fields can be added
3.1.5. Ladid, Latif. "IPv6 - The next big bail-out: will IPv6 save the internet?" CompSysTech '09 Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing. New York, NY: ACM, 2009.