Keith Moore wrote:
That's true of IPv4/IPv4 NATs. It's not true of NAT66 - explicitly.
Not clear. Any time it becomes necessary to use a particular v6 address
from a particular scope in order to reach a peer, reachability is
harmed. Any time a NAT creates an alias for an existing address that,
if used, might cause pessimal routing of traffic, reachability is harmed.
Exactly, and that's one of the two main reasons NAT is so popular.
Residential and commercial network owners and operators don't want their
internal hosts to be directly reachable. This is the business case that
IPv6 must meet before it has any chance of being widely adopted.
Roger Marquis
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