> The benefit of NPTv6 is address stability and provider independence. > The benefit of PI is address stability and provider independence. > The cost of the method NPTv6 applies to get that benefit is that the > addresses change in flight. -This- is the issue.
But PI has its own set of costs. There is the impact on the global routing tables, which means PI can only be a solution for a relatively small fraction of the users. And there is the administrative cost of getting a PI address allocated, and then convincing the network providers to advertise it. You could just as well mention the advantage of provider based addresses -- no address stability, no provider independence, but very low administrative cost, no impact on global routing, and transparency to applications. I suppose we could summarize all that in a neat table. -- Christian Huitema _______________________________________________ nat66 mailing list [email protected] https://www.ietf.org/mailman/listinfo/nat66
