Hi, If it's of any interest, the slides from my SwiNOG-5 presentation on DDoS (attacks, detection, protection, etc) are available: http://www.securite.org/presentations/ddos/ Some "older" slides from BH US'02 on "IP Backbone Security" are also available (PPT'97 and PDF): http://www.securite.org/presentations/secip/ Nico. -- Nicolas FISCHBACH (nico@securite.org) <http://www.securite.org/nico/> IP Engineering Manager - COLT Telecom AG Securite.Org Team <http://www.securite.org/>