On Jul 27, 2011, at 11:12 AM, Erik Kline wrote:
Moving 6to4 to historic does not in any way impact your ability to use
it as you wish.
False. Moving 6to4 to Historic is inviting people to mount denial of service
attacks on things that actually work for people today. Moving 6to4 to Historic
will also invite vendors to remove 6to4 support from future versions or updates
of their products, forcing users to make difficult choices between using 6to4
on one hand and changing equipment or vendors on another.
There's no reason to cause that kind of collateral damage. Denial of service
attacks are completely inappropriate.
6to4 support is not part of the IPv6 node requirements, as I
understand it. Therefore I believe that any vendor (OS, router,
otherwise) could deleted 6to4 support in any release and be in
violation of anything, regardless of historic status.
Nothing that IETF specifies requires 6to4. Vendors can indeed delete it if
they want to. But IETF should not recommend that they do so, or imply that
they should do so.
Keith
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