FW: [arin-announce] Change to Whois Query Behavior

[Mark Kosters <markk () arin net>]

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" <info () 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)
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