Publications

Ebb and Flow: Implications of ISP Address Dynamics

Abstract

Address dynamics are changes in IP address occupation as users come and go, ISPs renumber them for privacy or for routing maintenance. Address dynamics affect address reputation services, IP geolocation, network measurement, and outage detection, with implications of Internet governance, e-commerce, and science. While prior work has identified diurnal trends in address use, we show the effectiveness of Multi-Seasonal-Trend using Loess (MSTL) decomposition to identify both daily and weekly trends. We use ISP-wide dynamics to develop IAS, a new algorithm that is the first to automatically detect ISP maintenance events that move users in the address space. We show that 20% of such events result in /24 IPv4 address blocks that become unused for days or more, and correcting nearly 41k false outages per quarter. Our analysis provides a new understanding about ISP address use: while only about 2.8 …

Date
March 11, 2024
Authors
Guillermo Baltra, Xiao Song, John Heidemann
Book
International Conference on Passive and Active Network Measurement
Pages
132-149
Publisher
Springer Nature Switzerland