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Re: Requesting P.I. Space from ARIN - latest issues?
On 11-Oct-2005, at 11:33, Justin M. Streiner wrote:
I believe it is followed rigourously for new assignments, and that / 22 assignments are made from a range of addresses whose minimum allocation size is /22 (or longer).On Tue, 11 Oct 2005, email@example.com wrote:1) I meet the Multihoming requirement, which means I can get a block asMost if not all of the /8s that get assigned to ARIN have a prescribed minimum allocation size. How rigorously that is followed is another story :-)
ISPs who filter based on prefix length according to RIR minimum allocation sizes should not block a route based on such an assignment, assuming their filters are up-to-date.
Whether or not any particular prefix is blocked is best determined experimentally (e.g. feed a box with two interface addresses from different ranges a list of hosts to ping at a polite, low frequency, and compare the results sourced from each address).
I have had dealings with many ISPs who have announced blocks based on fairly long-prefix assignments from RIRs, following policies such as ARIN's multi-homing assignment policy, and I haven't heard of any substantial problems due to the prefix length. James' MMV, of course.
I don't think you can specifically request that ARIN assign you space out of the swamp these days.You can request anything you like. Whether it makes a difference is another thing entirely :-)