Current policy allows for greater-than-/48 PI assignments if the org can
justify it. However, since we haven't told staff (via policy) what that
justification should look like, they are currently approving all requests and
several orgs have taken advantage of that.
I can't imagine what an end-user could come up with to justify more than a
/48 but what do I know. And if ARIN's primary goal is to prevent
de-aggregation then shouldn't there be another fixed allocation size (/40)
and block to prevent this?
So, it's entirely possible someone could get a /40 and deaggregate that into
256 routes if they wanted to. Given the entire v6 routing table is around
700 routes today, it's obviously not a problem yet :)
Obviously that's short sighted :) As for the deaggregation- anyone
deaggregating a /40 into 256 routes should have there AS permanently
bloackholed :)
-Don