On 8 dec 2007, at 21:25, Bob Hinden wrote:
I would like to
re-iterate what I said in the meeting, speaking for myself: there
is no
Plan B. We need to go to IPv6. The only question for me is how do
we
transition in an orderly and responsible fashion?
If there is no "Plan B", then would be putting all of our resources
behind "Plan A".
I'd say that "Plan A" would be the continued operation of the
internet. I think most of us agree that this involves a move to IPv6
at some point, but I'm afraid the lack of a "Plan B" doesn't
automatically spell out the nature of "Plan A".
If support for 240/4 requires IPv4 code changes then we shouldn't do
it.
(Most of) the vendors set a very bad precedent by making this address
space unusable because they couldn't find a documented intended use.
It's important to reverse this as much as possible by saying that was
the wrong thing to do lest we end up with IPv6 code that won't accept
anything outside 2000::/3.
Maybe at some point someone will find a use for 240/4, but I wouldn't
count on that.
The only scenario that makes sense to me to use 240/4 as non-
reserved address space is if it's use can help move us to IPv6
(e.g., Plan A).
By that logic, shouldn't we stop all IPv4-related work?
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