North American Network Operators Group
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Re: A useful oversimplification for network surveillance?

  • From: Fergie (Paul Ferguson)
  • Date: Thu Aug 25 12:05:36 2005 
Actually, re-reading your original message, netflow would certainly
be helpful in analysis, trending, etc. (along with something
along the lines of MRTG) -- and IDS is only helpful after the
fact, per se.

- ferg

-- "Howard C. Berkowitz" <[email protected]> wrote:

At 3:30 PM +0000 8/25/05, Fergie (Paul Ferguson) wrote:
>Howard,
>
>I'd most certainly use an IDS (i.e. SNORT) for this instead of
>netflow....

My concern is scalability, remembering I'm talking about the 
surveillance level. My preliminary sense is that SNORT is great in a 
sinkhole, but isn't as scalable as a reasonable NetFlow export.


>
>-- "Howard C. Berkowitz" <[email protected]> wrote:
>
>       NetFlow is the key to analyzing traffic patterns outside the router,
>       looking for DDoS signatures when known, and for traffic anomalies that
>       may become DDoS.