[Full-disclosure] Ubisoft DDoS
uuf6429 at gmail.com
Tue Mar 9 20:56:14 GMT 2010
Perhaps Cisco xt 5650a?
Also, 6500 series are actually switches, not routers. ;-)
On Tue, Mar 9, 2010 at 4:24 PM, Michal <michal at ionic.co.uk> wrote:
> On 09/03/2010 15:12, Valdis.Kletnieks at vt.edu wrote:
> > On Tue, 09 Mar 2010 15:27:02 +0100, Adrenalin said:
> >> I'm just wondering, even if it's under DDoS, isn't it as easy to block
> as to
> >> collect the list of IP that send too much data, and just block them on
> >> upper level ISP ?
> > You *do* realize that a *small* botnet these days is 75,000 machines, and
> > there's a estimated 140 million compromised zombie boxes out there?
> > very few boxes that can handle an inbound ACL of 75K entries sanely -
> > what ends up happening is the upstream drops all traffic *to* the target
> > just so all the *other* boxes at the site still get some bandwidth.
> > And "sending too much data" is hard to quantify - if you have enough
> > you can thoroughly DDoS a site using far *less* bandwidth per host than a
> > normal user does. If the site was designed to handle 10,000 clients each
> > sending 5 packets per second for 10 seconds during a login at game start,
> > it will likely fall over if you throw 100,000 bots at it, each sending
> > 4 packets a second continuously...
> I've worked at huge online better company and they had network devices
> that worked to stop DDoS as we got hit quite a bit. I have to say they
> managed quite well, often we would only notice because we regularly
> checked the graphs over 24 hours periods. Other times the attacks had
> some successes but they worked well. Can't remember what they where
> called...think it was a company that ended up being bought by Cisco,
> though we did have cards in the 6500 routers to also help out with DDOS.
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