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Re: 72/8 friendly reminder
--On 23 March 2005 10:51 -0800 Randy Bush <firstname.lastname@example.org> wrote:
a bit more coffee made me realize that what might best occur would be for the rir, some weeks BEFORE assigning from a new block issued by the iana, put up a pingable for that space and announce it on the lists so we can all test BEFORE someone uses space from that block.
Hmmm.. or, if the RIRs are going to advertize the block anyway between IANA issue and space assignment (which would appear to be a necessary precondition for what you suggest to work), why not ping "a large collection of targets" using the new block, and various other IP addresses as source addresses, and see which addresses responded from the old block(s), but not from the new block. Sort by AS, and that would give you a list (correct to heuristic level) of AS's that need to update their filters. Then stick it on a web page. RIPE could (for instance) generate it's "large collection of targets" using a tiny sample of host-count data. (clearly RIPE needs to ping addresses from all RIRs, ditto ARIN, APNIC etc.) Alex