On Dec 10, 2013, at 12:38 AM, Rolf Hanßen <[email protected]> wrote:

> I am thinking about dropping some (mainly ddos) traffic on the outside 
> network borders with ACLs.

ACLs don't work well as a DDoS reaction mechanism.  They're good for protecting 
your network infrastructure:

<https://app.box.com/s/osk4po8ietn1zrjjmn8b>

S/RTBH is much better as a DDoS reaction mechanism:

<https://app.box.com/s/xznjloitly2apixr5xge>

All the caveats folks have noted about ACLs hold true.  

-----------------------------------------------------------------------
Roland Dobbins <[email protected]> // <http://www.arbornetworks.com>

          Luck is the residue of opportunity and design.

                       -- John Milton


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