On Sep 25, 2011, at 9:42 AM, John C Klensin wrote: > Remembering that an ISP who wants to avoid the use of public > IPv4 addresses on its backbone/infrastructure has the option of > simply converting that infrastructure to IPv6, tunneling > public-address IPv4 packets (both its own and those of its > customers) over that IPv6 infrastructure using a tunneling > approach of its choice. Longer-term, that approach makes the ISP > far more IPv6-ready, while "more private/shared IPv4 space" is > just another dead end.
Yes, but even if it does this (and I agree that it's a strategy well worth considering) that ISP is going to need IPv4 addresses to assign to its customers until the customers migrate to IPv6. Keith
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