The advantage, as i see it, is that this could be done incrementally. Every new router/firmware/os could add support, until support is ubiquitous.
Contrast this with ip6, which is a completely new system, and thus has a chicken and egg problem.
That is how v6 worked though. Every router and consumer device supports v6 and has for a very long time now. The holdup ended up being ISPs.
Today it seems most ISPs support it but have it behind an off by default toggle.
That is how v6 worked though. Every router and consumer device supports v6 and has for a very long time now. The holdup ended up being ISPs.
Today it seems most ISPs support it but have it behind an off by default toggle.