Apologies for the cross post from ARIN-Announce. Thought that many of you would be interested in hearing about the upcoming ARIN Whois change given the recent discussion on NANOG.
Regards, Mark ARIN CTO On 9/19/11 2:00 PM, "ARIN" <i...@arin.net> wrote: >ARIN announces a pending change to Whois query behavior on port 43. > >Prior to 25 June 2011, a query for an IP address in the ARIN region >would return with that assignment/allocation within the ARIN region, and >a query in the ARIN region for an IP address with no >assignment/allocation would result in a ³no match² response. On 25 June, >a change was misapplied. The intent of this change was to return ARIN¹s >/8 for IP queries within ARIN¹s region for which there is no >assignment/allocation, a behavior meant to align ARIN¹s Whois output >with that of the other RIRs. However, this change introduced an >unintended behavior of returning ARIN¹s /8, in addition to the desired >results, in responses where IP addresses had been assigned or allocated. >This change in behavior has created some confusion. On 2 October, ARIN >will reinstate the previous behavior for Whois IP queries so that >results are returned the way they were before 25 June. > >ARIN has provided two examples of a Whois query for reference: > >* Query with ARIN's /8 returned in the result set hierarchy: >https://www.arin.net/announcements/2011/20110919.html#example1 > >* Query without ARIN's /8 returned in the result set: >https://www.arin.net/announcements/2011/20110919.html#example2 > >Whois-RWS behavior will not change as it was not affected by the >configuration change made on 25 June. > >We apologize for any confusion this has caused. > > > >Regards, >Mark Kosters >Chief Technical Officer >American Registry for Internet Numbers (ARIN) >_______________________________________________ >ARIN-Announce >You are receiving this message because you are subscribed to >the ARIN Announce Mailing List (arin-annou...@arin.net). >Unsubscribe or manage your mailing list subscription at: >http://lists.arin.net/mailman/listinfo/arin-announce >Please contact i...@arin.net if you experience any issues.