WANTED: ISPs with DDoS defense solutions
McBurnett, Jim
jmcburnett at msmgmt.com
Thu Jul 31 13:27:34 UTC 2003
I tend to agree here.
I have noticed so many attacks etc coming from
APNIC as of recent that on our corp network we have an ACL
to block a number of APNIC blocks.
If there was a dynamic method to add null0 routes to
identified zombies, I think that would help.
IE. security company A provides a feed (BGP etc)
to null route zombies that it has identified.
But that opens a whole other can of worms.....
J
-----Original Message-----
From: Petri Helenius [mailto:pete at he.iki.fi]
Sent: Thursday, July 31, 2003 9:24 AM
To: variable at ednet.co.uk; Rob Thomas
Cc: NANOG
Subject: Re: WANTED: ISPs with DDoS defense solutions
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 at ednet.co.uk>
To: "Rob Thomas" <robt at cymru.com>
Cc: "NANOG" <nanog at 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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