IPv4 vs. IPv6; A Crisis Looms

I came across this interesting presentation by Randy Bush concerning the transition of IPv6 from IPv4. It paints a gloomy picture and addresses some of the challenges and issues with migrating the world over to IPv6.

We've known for for a long time that IPv4 was going to run out of addresses. That's when a group of people decided to come up with the IPv6 protocol thinking that this solution was going to save the world. According to this presentation the crisis will hit (as soon as 2010) but nobody can agree on what to do. The three options are all pretty scary and are outlined nicely in this PDF by Randy Bush.

NAT can help alleviate the situation but it is not a solution. It just doesn't scale well and has its own issues. A global solution that is fair across the world is going to be difficult to come by.
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