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Computer
Science Department Special Seminar Protocols, infrastructure, and fragility: new perspectives on Internet routing resilience Speaker: Robert Beverly, Associate Professor, Department of Computer Science, Naval Postgraduate School (NPS) When: 2:00PM ~ 2:50PM, Monday April 8, 2019 Where: CLARK A202 Contact: Wim Bohm (bohm@cs.colostate.edu) Abstract: While routing is fundamental to the functionality of the Internet, empirical evidence demonstrates that this critical infrastructure is often and easily disrupted. Toward increasing the Internet's resilience amid increasing network scale, scope, and adversarial sophistication, we first introduce two novel active measurement techniques: Yarrp and TBT. Yarrp enables rapid Internet-scale discovery of IPv4 and IPv6 routing infrastructure, while TBT permits remote inference of router restarts. Using these as foundational building blocks, we take a first step toward definitively identifying routers that represent single points of failure by correlating inferred restarts with global BGP routing activity. Next, we demonstrate a new class of attack that leverages BGP communities to remotely blackhole and reroute traffic, even without explicit hijacking. Our results suggest ways in which the routing protocols and infrastructure can be made more resilient to both malicious and non-malicious disruptions. Bio: Dr. Robert Beverly is an Associate Professor in the Department of Computer Science at the Naval Postgraduate School (NPS) in Monterey, CA. He and his students focus on problems in network architecture, measurement, and security. Technology from Dr. Beverly's lab has been published in top network and security venues, employed in industry, and used by policy makers. He and his collaborators have received best paper awards from the ACM, USENIX, IEEE, DFRWS, and PAM, and the IETF Advanced Network Research Prize in 2019. Dr. Beverly has been recognized in three years as one of the top teachers at NPS, and was the school-wide best teacher in 2017. Prior to joining NPS, he was a network scientist with BBN Technologies and a senior engineer at MCI. Dr. Beverly received his Ph.D. in EECS from the Massachusetts Institute of Technology, and his BS in CmpE with high honors from Georgia Tech. In his spare time, Rob enjoys trail running, hacking, and writing April 1st RFCs. |