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Subject: Re: RIPE down - DDoS confirmed
From: Rob Thomas <[log in to unmask]>
Reply-To:Network management discussion for Nordic region <[log in to unmask]>
Date:Fri, 28 Feb 2003 09:48:10 -0600

TEXT/PLAIN (32 lines)

Hi, NORDNOG folks.

] Since this discussion is on the list, should'nt we, the Swedish (and nordic)
] ISP's try to begin to use prefix-filtering instead of the mixed mess of
] maximum-prefixes, as-path-origin or no filters at all?

I have a template approach to the use of prefix-lists for filtering:

Those of you using Juniper routers can use Steve Gill's template:

For peering points with lots of prefixes, you can use the loose or
strict prefix filter templates created by Barry Greene (among

Keep in mind that prefix hijacking is a popular trick in the spammer
community.  It is therefore wise to filter your announcements, and
to coax the wider community to do the same.

I hope this helps!

Rob Thomas
ASSERT(coffee != empty);

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