I am a PhD candidate at the University of California, San Diego in the Department of Computer Science and Engineering. I am advised by KC Claffy and Alex Snoeren. My research interest is in Internet Measurement and Interdomain Routing Security. My current research focuses on routing security and defenses against abuse of the interdomain routing system. I work at the Sysnet and CNS research groups at Computer Science and Engineering, and at CAIDA at the San Diego Supercomputer Center.

Before starting my PhD, I obtained my B.S. in Computer Science here at UC San Diego with a minor in Organic Chemistry (wet labs are fun!).

• Locating and Enumerating Anycast: A Comparison of Two Approaches

  
  Remi Hendriks, Tim Betzer, Ben Du, Raffaele Sommese, Mattijs Jonker, and Roland van Rijswijk-Deij.

  Applied Networking Research Workshop (ANRW), Madrid, Spain, July 2025.

• From Scarcity to Opportunity: Examining Abuse of the IPv4 Leasing Market

  
  Bernhard Degen, Ben Du, Ricky K. P. Mok, Raffaele Sommese, Mattijs Jonker, Roland van Rijswijk-Deij, and kc claffy.

  Network Traffic Measurement and Analysis Conference (TMA), Copenhagen, Denmark, June 2025.

• Sublet Your Subnet: Inferring IP Leasing in the Wild

  
  Ben Du, Romain Fontugne, Cecilia Testart, Alex C. Snoeren, and kc claffy.

  ACM Internet Measurement Conference (IMC), Madrid, Spain, November 2024.

• IRRegularities in the Internet Routing Registry

  
  Ben Du, Katherine Izhikevich, Sumanth Rao, Gautam Akiwate, Cecilia Testart, Alex C. Snoeren, and kc claffy.

  ACM Internet Measurement Conference (IMC), Montréal, Canada, October 2023.

• Mind Your MANRS: Measuring the MANRS Ecosystem

  
  Ben Du, Cecilia Testart, Romain Fontugne, Gautam Akiwate, Alex C. Snoeren, and kc claffy.

  ACM Internet Measurement Conference (IMC), Nice, France, October 2022.

• Stop, DROP, and ROA: Effectiveness of Defenses through the Lens of DROP

  
  Leo Oliver, Gautam Akiwate, Matthew Luckie, Ben Du, and kc claffy.

  ACM Internet Measurement Conference (IMC), Nice, France, October 2022.

• IRR Hygiene in the RPKI Era

  
  Ben Du, Gautam Akiwate, Thomas Krenc, Cecilia Testart, Alexander Marder, Bradley Huffaker, Alex C. Snoeren, and kc claffy.

  Passive and Active Measurement Conference. Virtual Event. March 2022

• RIPE IPmap Active Geolocation: Mechanism and Evaluation

  
  Ben Du, Massimo Candela, Bradley Huffaker, Alex C. Snoeren, and kc claffy.

  ACM SIGCOMM Computer Communication Review, Volume 50, Issue 2, April 2020.

• Taking the Low Road: How RPKI Invalids Propagate

  
  Poster

  
  Ben Du, Cecilia Testart, Romain Fontugne, Alex C. Snoeren, and kc claffy.

  ACM SIGCOMM Conference. September 2023

• IRR Hygiene in the RPKI Era

  
  Poster

  
  Ben Du, Alex C. Snoeren, and kc claffy.

  ACM Internet Measurement Conference (IMC). November 2021

• Guest Lectures: Internet Data Science for Cybersecurity

  
  Lecture: BGP Hijacking | Lecture: BGP Hijacking Defenses

  
  Computer Science and Engineering. UC San Diego. Winter 2023

• IRR Hygiene in the RPKI Era

  
  GAIA Workshop. Simula Metropolitan. October 2021

• Inside RIPE IPmap: Single-Radius Evaluation

  
  RIPE 79. Rotterdam, NL. October 2019

• A First Look at Suspicious IRR Records

  
  MANRS Blog. Aprily 2024

• Studying the conformance of MANRS members

  
  APNIC Blog. February 2023

• 85% of MANRS Members Conformant to Actions 1 and 4

  
  MANRS Blog. Janurary 2023

• Which Internet Routing Registry database has the most accurate information?

  
  APNIC Blog. April 2022