Survey of Traceback Methods

Now days, internet is expanding day by day. Everyday some new threats are detected and some new attacks like Dos and DDoS are launched. So the problem of identifying such kinds of threats is very difficult in network security. It is very difficult to distinguish between normal traffic and DDoS traffic because DoS hide their actual identity. In this situation, it is necessary for the victim to identify the exact source or the origin of packet by using traceback method. It means that it is important to find the router, from which, the packet was entered into network so that attack rate can also be reduced. This paper presents different traceback methods to trace the packets or to identify the origin of a packets on network.