Brian E Carpenter wrote:
> I'm sorry, but *any* coexistence between RFC791-IPv4-only hosts and
> hosts that are numbered out of an address space greater than 32 bits
> requires some form of address sharing,
Sure.
> address mapping, and translation.
Not at all.
Realm Specific IP [RFC3102] is such an example without any
mapping nor translations. Abstract of the RFC states:
This document examines the general framework of Realm Specific IP
(RSIP). RSIP is intended as a alternative to NAT in which the end-
to-end integrity of packets is maintained. We focus on
implementation issues, deployment scenarios, and interaction with
other layer-three protocols.
> It doesn't matter what choice we made back in 1994. Once you get to the
> point where you've run out of 32 bit addresses and not every node can
> support>32 bit addresses, you have the problem.
The only problem is that some people misinterpret it that
we had needed IPv6.
Masataka Ohta
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