Re: IPv6 addresses really are scarce after all

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Keith,

It seems likely that cable mso's similar will dole out /64's to
customers one at a time, ...

The issue is that IPv6 is architected to give sufficient addresses to
end users, and by screwing with this ARIN is harming both deployability
of IPv6, manaegability of IPv6, and usability of IPv6 by applications.


First, there was never an architectural goal to give end users 'sufficient' addresses for arbitrary values of 'sufficient'. Second, one might reasonably expect 2^64 addresses to be sufficient. It allows anyone to embed 2^32 entire IPv4-sized Internets in their own house. If you have a problem with IPv6's routing architecture not allowing subnetting within the least significant 64 bits, well, that's water that's VERY much
under the bridge.

Third, I think you have your perpetrator's confused. ARIN is not limiting end users to /64's, that is the MSOs call. They are retailing service and as you might reasonably expect, their entry level product is just that: entry level. As I mentioned before, if you
want more, fork over more sheckles.  Most MSOs would VERY much like to
sell you a service with a fraction of an IPv4 address today, but they really haven't figured out how they could do so technically. For v6, they will always sell a service with a minimal amount of address, regardless of ARIN policies. If they could figure
out how to make that a /128, they would.

This is just good business sense on their part: buy low, sell high.

no, it's because they're screwing with protocol design decisions that
have already been made, and which they aren't by any stretch of the
imagination qualified to revisit.


Exactly what decision are you claiming they violate? Please quote the RFC.
I don't know which one you're on about.

Thanks,
Tony

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