[29414] in North American Network Operators' Group
Re: using IRR tools for BGP route filtering
daemon@ATHENA.MIT.EDU (Danny McPherson)
Thu Jun 22 10:37:39 2000
Message-Id: <200006221436.IAA06215@tcb.net>
To: nanog@merit.edu
From: Danny McPherson <danny@tcb.net>
Reply-To: danny@tcb.net
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Date: Thu, 22 Jun 2000 08:36:21 -0600
Errors-To: owner-nanog-outgoing@merit.edu
> AS Path filtering would be much smaller than prefix based filtering.
> Perhaps small enough to work on existing routers. These filters could also
> be built using registry data, from the ASes that make up providers' as-macros.
> Not a silver bullet, but probably significantly better than doing
> nothing.
Though it's certainly better than nothing, it does little more than
ensure AS_PATH sequence and integrity .. it provides no protection
against invalid announcements.
-danny
