nanog mailing list archives

RE: DDOS prevention offensive.


From: Roeland Meyer <rmeyer () mhsc com>
Date: Thu, 12 Jul 2001 14:57:29 -0700



From: Jason Slagle [mailto:raistlin () tacorp net]
Sent: Thursday, July 12, 2001 10:19 AM

On Thu, 12 Jul 2001, Bill Larson wrote:

Well to sum it up in one sentence. If you eliminate the 
bogus addresses, you
can then target the actual zombie machines used to attack 
the site and
eventually eliminate the risk via patching or null route 
them. So filtering
bogus addresses, non-routable addresses, and the addresses, 
which do not
belong to your net blocks, would serve to combat the denial 
of service
attacks.


I believe the attacks in question are actually non-spoofed.

It's getting the source networks to remove the boxes that is the
problem.  Most of them are .edu.

Aha! I knew there was a reason that I filter EDU <g>.


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