Date Added: Oct 2012
A data packet is typically forwarded from one router to another through networks that constitute the internetwork until it gets to its destination node. At the same time routers in the Internet do not perform any security verification of the source IP address contained in the packets. The lack of such verification opens the door for a variety of network security vulnerabilities like Denial-of-Service (DoS) attacks, man-in-the-middle attacks etc. One of the major threats to the Internet is source IP address spoofing. To avoid the IP spoofing a number of prevention approaches are proposed by the research community. In this paper, an ant-based traceback is proposed to detect the IP spoofing. The proposed traceback approach uses flow level information to identify the spoofing request.