The IP traceback technique detects sources of attack nodes and the paths traversed by anonymous DDoS (Distributed Denial of Service) flows with spoofed source addresses. We propose a hierarchical IP traceback architecture, which decomposes the Internet-wide traceback procedure into inter-domain traceback and intradomain traceback. Our proposed method is different from existing approaches in that our method is independent from a single IP traceback mechanism, and domain decomposition is based on

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... existing operational models of the Internet. Moreover, it has the capability of being used for not only the IPv4 network, but also the IPv6 network.