Hash stamp marking scheme for packet traceback

The Internet Protocol (IP) is the basic language that all computers use to communicate across networks and the Internet. A flaw in the design of this protocol allows attackers to forge the sending address of IP packets, known as packet spoofing. This packet spoofing is a serious security issue on networks and the Internet because it prevents authorities from locating the true source of any spoofing attack. In this paper we analyze technologies available for coping with packet spoofing. After this discussion we present a simple method for traceback, followed by an analysis of the method's requirements.