> Jim Bound wrote:
> and this is my biggest fear for the Internet with IPv6.  These
> site-locals could undo all we did with IPv6 to restore end-to-end
> architecture for the Internet.
> Trying to limit them with words or BCPs whatever will NOT prevent
> the potential tragedy to our beloved Internet

I share your concern, I just don't think that there are good reasons to
develop IPv6 NAT. Besides, there are plenty of other things that break
end-to-end and will continue to break it: Load balancers, cache engines,
etc.

A word about "warm an fuzzy":
"warm and fuzzy" is a requirement. There will be IPv6 firewalls, I
actually think there will not be any serious IPv6 setup without a
firewall.

What is a firewall? It's a big, bulky, very expensive rack-mounted
device with the word "firewall" screened in big letters on the front.
What does it do? It makes senior management feel secure.

A firewall does not protect a network more than a private IP does. It
can be bypassed as I explained before. I regret to report that the very
existence of firewalls and load balancers is not something you and I
will change. I would apply the same reasoning to site-local addresses.

Michel.


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