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Re: WANTED: ISPs with DDoS defense solutions
- From: Petri Helenius
- Date: Thu Jul 31 09:26:16 2003
I would say that because backdoored hosts are easily available in large
quantities, spoofing does not make sense and usually alarms various systems
more quickly than packets from legitimate addresses.
Pete
----- Original Message -----
From: <variable@ednet.co.uk>
To: "Rob Thomas" <robt@cymru.com>
Cc: "NANOG" <nanog@merit.edu>
Sent: Thursday, July 31, 2003 4:17 PM
Subject: Re: WANTED: ISPs with DDoS defense solutions
>
> On Wed, 30 Jul 2003, Rob Thomas wrote:
>
> > I've tracked 1787 DDoS attacks since 01 JAN 2003. Of that number,
> > only 32 used spoofed sources. I rarely see spoofed attacks now.
>
> Do you have any ideas as to why that is? Is it due to more providers
> doing source filtering? It wouldn't make sense for attackers to become
> less sophisticated unless they became more difficult to catch for other
> reasons (e.g. botnets getting bigger).
>
> Rich
>
>
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