On Mar 20, 2009, at 1:23 PM, Keith Moore wrote:
NATs impair both addressability and reachability, and we do a
disservice to the community if we pretend otherwise. NAT (really
NAPT)
does harm to reachability because it blocks traffic in one direction
even if this is not explicit policy, and NAPT limits the flexibility
of
a site to choose a policy that takes application usage into account.
NAT
can also impair reachability when binding state is lost or discarded.
That's true of IPv4/IPv4 NATs. It's not true of NAT66 - explicitly.
It would be really nice if we could stay in the general vicinity of
the topic.
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