Content-Centric Networking: Effect of Content Caching on Mitigating DoS Attack
Kai Wang, Jia Chen, Huachun Zhou, Yajuan Qin · 2012
Content-Centric Networking (CCN) is a novel networking paradigm making named data the first class entity rather than IP address. That is, it cares about which data to fetch rather than which host to reach. One key feature of CCN is the content caching that CCN routers are caching named contents instead of IP addresses, which makes the effect of Denial-of-Service (DoS) attack different from in TCP/IP networking. In this paper, we propose a DoS attack model for CCN. Comparing with TCP/IP networking, we use the model evaluations and NS2 simulations to show the effectiveness of CCN’s content caching on limiting DoS attack. In addition, we analyze how the content caching Time-To-Live (TTL) in CCN affects DoS attack. Both the results show CCN has better survivability and resilience than TCP/IP networking when suffering DoS attack and larger content caching