How Ready is DNS for an IPv6-Only World?

Florian Streibelt, Patrick Sattler, Franziska Lichtblau, Carlos H. Gañán, Anja Feldmann, Oliver Gasser, Tobias Fiebig*

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

3 Citations (Scopus)
50 Downloads (Pure)

Abstract

DNS is one of the core building blocks of the Internet. In this paper, we investigate DNS resolution in a strict IPv6-only scenario and find that a substantial fraction of zones cannot be resolved. We point out, that the presence of an AAAA resource record for a zone’s nameserver does not necessarily imply that it is resolvable in an IPv6-only environment since the full DNS delegation chain must resolve via IPv6 as well. Hence, in an IPv6-only setting zones may experience an effect similar to what is commonly referred to as lame delegation. Our longitudinal study shows that the continuing centralization of the Internet has a large impact on IPv6 readiness, i.e., a small number of large DNS providers has, and still can, influence IPv6 readiness for a large number of zones. A single operator that enabled IPv6 DNS resolution–by adding IPv6 glue records–was responsible for around 20.3% of all zones in our dataset not resolving over IPv6 until January 2017. Even today, 10% of DNS operators are responsible for more than 97.5% of all zones that do not resolve using IPv6.
Original languageEnglish
Title of host publicationPassive and Active Measurement - 24th International Conference, PAM 2023, Proceedings
EditorsAnna Brunstrom, Marcel Flores, Marco Fiore
PublisherSpringer
Pages525-549
Number of pages25
ISBN (Print)9783031284854
DOIs
Publication statusPublished - 2023
Event24th International Conference on Passive and Active Measurement, PAM 2023 - Virtual, Online
Duration: 21 Mar 202323 Mar 2023

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume13882 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference24th International Conference on Passive and Active Measurement, PAM 2023
CityVirtual, Online
Period21/03/2323/03/23

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