IPv6 Alias Resolution via Induced Fragmentation
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- Beverly R., Brinkmeyer W., Luckie M., Rohrer J.P. (2013) IPv6 Alias Resolution via Induced Fragmentation. In: Roughan M., Chang R. (eds) Passive and Active Measurement. PAM 2013. Lecture Notes in Computer Science, vol 7799. Springer, Berlin, Heidelberg
Discovering router-level IPv6 topologies is important to understanding IPv6 growth, structure, and evolution and relation to IPv4. This work presents a fingerprint-based IPv6 alias resolution technique that induces fragmented responses from IPv6 router interfaces. We leverage the way in which IPv6 implements fragmentation to provide reliable inferences. We demonstrate perfect alias resolution accuracy in a controlled environment, and on a small subset of the production IPv6 Internet for which we have ground-truth. Internet-wide testing finds that over 70% of IPv6 interfaces probed respond to the test. Our promising results suggest a valuable technique to aid IPv6 topology discovery.
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