[37415] in North American Network Operators' Group
Re: in-addr survey?
daemon@ATHENA.MIT.EDU (bmanning@vacation.karoshi.com)
Fri May 11 18:34:20 2001
From: bmanning@vacation.karoshi.com
Message-Id: <200105112249.WAA21692@vacation.karoshi.com>
To: patrick@cybernothing.org (Patrick Greenwell)
Date: Fri, 11 May 2001 22:49:45 +0000 (UCT)
Cc: nanog@merit.edu
In-Reply-To: <Pine.BSF.4.21.0105111359080.81309-100000@localhost> from "Patrick Greenwell" at May 11, 2001 02:08:18 PM
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>
> I'm attempting to convince "the powers that be" that attempting to use
> reverse lookups to determine geographic locale is extremely
> inaccurate. One of the reasons among the many this is the case (I
> believe) is that significant portion of admins do not have properly configured
> in-addr. Has anyone done this sort of survey(Bill Manning?) If so,
> anyone have a pointer handy?
>
> Thanks.
>
Define "proper" please. Depending on what the selection criteria are and
where one is looking, the numbers vary. The Mice&Men numbers indicate
upwords of 75% of the delegations are flawed. My numbers point to about
55-60% of the delegations have some errors. On a bad day, I'm surprised
the thing works as well as it does.
-bill
