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Date: Mon, 5 May 2003 18:19:08 -0400
From: Jason Hunt <leth@primus.ca>
To: mario <mario@schmut.com>
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Subject: Re: Netblocks to filter, was: Re: [fw-wiz] Protecting a datacentre
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On Sun, May 04, 2003 at 12:13:22PM -0700, mario wrote:
> I run a nightly script that diffs these against yesterdays version.
> http://www.rfc-editor.org/rfc/rfc3330.txt

RFCs don't change.  

> http://www.iana.org/assignments/ipv4-address-space

This should be the only file you need to watch.