Perhaps Cisco xt 5650a? Also, 6500 series are actually switches, not routers. ;-)
Cheers. On Tue, Mar 9, 2010 at 4:24 PM, Michal <[email protected]> wrote: > On 09/03/2010 15:12, [email protected] 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 > the > >> 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? > There's > > very few boxes that can handle an inbound ACL of 75K entries sanely - > usually > > what ends up happening is the upstream drops all traffic *to* the target > node > > 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 > bots, > > 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. > > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.grok.org.uk/full-disclosure-charter.html > Hosted and sponsored by Secunia - http://secunia.com/ >
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
