Lost in Space: Improving Inference of IPv4 Address Space Utilization

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Provided by: Cornell University
Topic: Networking
Format: PDF
One challenge in understanding the evolution of Internet infrastructure is the lack of systematic mechanisms for monitoring the extent to which allocated IP addresses are actually used. In this paper, the authors try to advance the science of inferring IPv4 address space utilization by analyzing and correlating results obtained through different types of measurements. They have previously studied an approach based on passive measurements that can reveal used portions of the address space unseen by active approaches. In this paper, they study such passive approaches in detail, extending their methodology to four different types of vantage points, identifying traffic components that most significantly contribute to discovering used IPv4 network blocks.
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