How Ready Is {DNS} for an {IPv6}-Only World?
| Autor: | Streibelt, Florian, Sattler, Patrick, Lichtblau, Franziska, Hernandez Ganan, C., Feldmann, Anja, Gasser, Oliver, Fiebig, Tobias, Brunstrom, Anna, Flores, Marcel, Fiore, Marco |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Passive and Active Measurement-24th International Conference, PAM 2023, Proceedings Passive and Active Measurement Lecture Notes in Computer Science Passive and Active Measurement ISBN: 9783031284854 |
| DOI: | 10.48550/arxiv.2302.11393 |
| Popis: | 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 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 . |
| Databáze: | OpenAIRE |
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