On Fri, Oct 26, 2012 at 3:27 PM, Mikael Abrahamsson
<swmike(_at_)swm(_dot_)pp(_dot_)se> wrote:
1) from one IP to another inside their own /64
2) from one /64 to another
3) from one ISP to another, particularly where showshoe-like schemes are
in place
I believe it's going to be common enough that legitimate MTAs will move
around within their /64 quite frequently (privacy extensions that are
Using a /64 as a default seems reasonable, but a new standard for
DNSxL lookups should provide some flexibility, either for a full list
("default prefix length = /56") or on a more granular level (using
John L.'s original proposal, or some other useful method).
-- Matthias
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