Maynard Koch
I am a PhD student and research associate at the Chair of Distributed and Networked Systems at TU Dresden, supervised by Prof. Dr. Matthias Wählisch. Before joining TU Dresden, I graduated with a BSc and MSc in Computer Science from Freie Universität Berlin. My research focuses on Internet measurements to improve network security. I'm particularly interested in DNS and scalable IPv6 scanning.
Session
Routing loops and the amplification of looping packets are known problems on the IPv6 Internet.
In a recent measurement study, we found that both problems are still present, potentially harming Internet stability.
Although routing loops are often easy to fix, they receive limited attention from the network operator community.
Since 2025, we aim to raise awareness of routing loops and amplification at network operator events.
In 2026, we started to weekly measure the deployment of routing loops and amplifications on the IPv6 Internet.
In this talk, we present how community outreach has helped significantly reduce the impact of these network misconfigurations. We further provide an update on the current state of these issues on the IPv6 Internet with a particular focus on the RIPE and DE region.
We hope these misconfigurations will eventually disappear and encourage the DENOG community to spread the word, check their networks, and help eliminate routing loops from the IPv6 Internet.
Until then, we will continue measuring, reporting, and raising awareness.
To assist in resolving these problems, we have made our findings publicly available at https://ipv6-sra.realmv6.org/routingloops, allowing operators to check whether their networks are affected by routing loops.