[79420] in North American Network Operators' Group

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Re: The power of default configurations

daemon@ATHENA.MIT.EDU (Eric A. Hall)
Wed Apr 6 21:20:41 2005

Date: Wed, 06 Apr 2005 20:20:15 -0500
From: "Eric A. Hall" <ehall@ehsco.com>
To: Sean Donelan <sean@donelan.com>
Cc: nanog@merit.edu
In-Reply-To: <Pine.GSO.4.58.0504061756550.5174@clifden.donelan.com>
Errors-To: owner-nanog@merit.edu



On 4/6/2005 5:00 PM, Sean Donelan wrote:

> Why does BIND forward lookups for RFC1918 addresses by default?

As has been pointed out already, caches need to be able to ask other
(local) servers for the PTRs.

OTOH, it might make a good feature (and eventually maybe a BCP) to block
PTR queries for 1918 space from going to the roots and TLD servers.

-- 
Eric A. Hall                                        http://www.ehsco.com/
Internet Core Protocols          http://www.oreilly.com/catalog/coreprot/

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