Title: Hash-based IP Traceback
Speaker: James Griffioen, Associate Professor, Department of Computer Science,
UK

Talk Abstract:
Intrusion detection has become increasingly important to network
operators given the rise in denial of service attacks and other
security preaches.  The design of the IP protocol makes it difficult
to reliably identify the originator (bad guy) that sent the IP
packet. Even in the absence of any deliberate attempt to disguise a
packet's origin, wide-spread packet forwarding techniques such as NAT
and encapsulation may obscure the packet's true source.

This talk will present a recent paper that describes a hash-based
technique for IP traceback.  It 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. The author 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.