[106631] in North American Network Operators' Group

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Re: Is it time to abandon bogon prefix filters?

daemon@ATHENA.MIT.EDU (Pete Templin)
Thu Aug 7 14:04:07 2008

Date: Thu, 07 Aug 2008 14:04:19 -0400
From: Pete Templin <petelists@templin.org>
To: "Patrick W. Gilmore" <patrick@ianai.net>
In-Reply-To: <1169F62F-3043-4D15-80C3-2D083744C22D@ianai.net>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

Patrick W. Gilmore wrote:

> Filter your bogons.  But do it in an automated fashion, from a trusted 
> source.
> 
> Of course, I recommend Team Cymru, which has a most sterling record.  
> Nearly perfect (other than the fact they still recommend MD5 on BGP 
> sessions :).

How can you recommend Team Cymru, when their product is not in any way a 
filter?  It is merely an automated method of injecting aggregate null 
routes for bogons, but in no way prevents a network from accepting 
aggregate or specific bogon announcements (i.e. it does not _filter_).

pt



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