Conference Program

Program At A Glance   Tutorials Program  Technical Program  Outrageous Opinions Session  
Social Events

Technical Program

Hash-Based IP Traceback
Alex C. Snoeren (MIT), Craig Partridge, Luis A. Sanchez, Christine E. Jones, Fabrice Tchakountio, Stephen T. Kent, W. Timothy Strayer (BBN Technologies)

The design of the IP protocol makes it difficult to reliably identify the originator of an IP packet. Even in the absence of any deliberaten attempt to disguise a packet's origin, wide-spread packet forwarding techniques such as NAT and encapsulation may obscure the packet's true source. Techniques have been developed to determine the source of large packet flows, but, to date, no system has been presented to track individual packets in an efficient, scalable fashion.

We present a hash-based technique for IP traceback that generates audit trails for traffic within the network, and can trace the origin of a single IP packet delivered by the network in the recent past. We demonstrate that the system is effective, space-efficient (requiring approximately 0.5\% of the link capacity per unit time in storage), and implementable in current or next-generation routing hardware. We present both analytic and simulation results showing the system's effectiveness.

Papers are provided as a service to all by the members of ACM SIGCOMM.