Simulation of DDoS-attacks and protection mechanisms against them

Distributed Denial of Service (DDoS) attacks have become a major threat to current networks. This article provides an overview on existing DDoS attacks generating tools and defense methods against them. The main difficulty of exploring DDoS attack features using such tools is the problem of raising huge real network and making lots of preparations to run tests executing these tools. We provide novel system for studying different DDoS attacks and counterattack technologies in virtual network. System architecture and interface is shown. Scenarios of simulating attacks are described, test results collected, analyzed, and presented.