Johannes Zirngibl, M.Sc.

Research

I focus on large scale analysis and measurements targeting the Internet. My core areas are the analysis of network deployments and their peculiarities. My work relies on multiple protocols spanning networking layers, such as IPv6, DNS, TLS, QUIC.

The goal is to reach a better understanding of the Internet and understand the impact of often disregarded influences such as Off-Net deployments.

I am part of the Global Internet Observatory (GINO), a interest group at our chair focusing on Internet measurements. For more information about myself and latest news, also see johanneszirngibl.de.

Supervised Theses

In progress

Student	Title	Type	Advisors	Year	Links
Franz Bauernschmitt	Evalution of Network Categorization Strategies	BA	Lion Steger, Johannes Zirngibl, Patrick Sattler	2023
Iñigo Varas	Autonomous System Models using BGP Data and GNNs	BA	Max Helm, Benedikt Jaeger, Johannes Zirngibl, Patrick Sattler	2023
Niklas Beck	Root Cause Analysis for Throughput Limitations of QUIC Connections	MA	Simon Bauer, Johannes Zirngibl	2023
Luca Otting	Improving QUIC with User Space Networking	BA	Kilian Holzinger, Benedikt Jaeger, Johannes Zirngibl	2023
David Weissmann	The Impact of iCloud Private Relay on Networks	BA	Patrick Sattler, Johannes Zirngibl	2023	[URL]
Florian Gebauer	Evaluating Different QUIC Scan Approaches	BA	Johannes Zirngibl, Patrick Sattler	2022
Zhou Lu	Structural Analysis of Internet Measurement Anomalies	MA	Lion Steger, Johannes Zirngibl	2022
Liming Kuang	Target Generation for IPv6 Hitlists	BA	Lion Steger, Johannes Zirngibl	2022
Christian Benedikt Dietze	Setup and Deployment of a Resilient Internet Scanning Infrastructure	IDP	Patrick Sattler, Johannes Zirngibl	2022
Mohammad Shaharyar Shaukat	Measuring the Impact of Transport Layer Protocols and Their Configuration on the Performance of Connections	MA	Simon Bauer, Patrick Sattler, Johannes Zirngibl	2022	[URL]
Gleina Leka	Active and Passive Measurements of TCP Option Deployment	MA	Simon Bauer, Johannes Zirngibl	2022	[URL]
Theresa Gräbner	Setup and Deployment of a Large Scale Certificate Scan Database	BA	Patrick Sattler, Johannes Zirngibl	2022	[URL]
Sebastian Voit	Bringing QUIC to High-speed Networks	MA	Benedikt Jaeger, Johannes Zirngibl	2021

Finished

Author	Title	Type	Advisors	Year	Links
Simon Karan Guayana	Analyzing the Effect of Transport Parameters on QUIC’s Performance	BA	Johannes Zirngibl, Benedikt Jaeger	2022
Marcel Kempf	Analysis of Performance Limitations in QUIC Implementations	MA	Benedikt Jaeger, Johannes Zirngibl	2022
Yudhistira Wibowo	Analysis of Blocklisted TLS Servers	BA	Johannes Zirngibl, Patrick Sattler	2022
Robert Dillitz	Transformation and Evaluation of TLS Behavior Graphs	MA	Johannes Zirngibl, Benedikt Jaeger, Markus Sosnowski	2022
Michael Kutter	Evaluation of Scalability and Limitations of HTTP/3	BA	Benedikt Jaeger, Johannes Zirngibl	2022
Kevin Ploch	QUIC Performance on 10G Links	BA	Benedikt Jaeger, Johannes Zirngibl	2022
Patrick Großmann	Extended Usage Analysis of EDNS Client Subnet	BA	Patrick Sattler, Johannes Zirngibl, Lion Steger	2022	[URL]
Lion Steger	State of the IPv6 Internet: Revisiting IPv6 Hitlists	BA	Johannes Zirngibl, Patrick Sattler, Juliane Aulbach, Oliver Gasser	2021
Raphael Schmid	ROV + IRR: Are Authorized Routes Registered?	BA	Johannes Zirngibl, Patrick Sattler, Juliane Aulbach	2021
Pascal Henschke	Analyzing BGP as a Graph	BA	Johannes Zirngibl, Patrick Sattler, Juliane Aulbach	2021
Steffen Deusch	Analyzing the Effect of Domain Parking on DNS Based Research	BA	Johannes Zirngibl, Patrick Sattler, Juliane Aulbach	2021
Felix Myhsok	Blocklists: Who is blocked?	BA	Johannes Zirngibl, Patrick Sattler, Markus Sosnowski	2021
Daniel Hegedüs	The First Year of QUIC v1 Deployment	BA	Johannes Zirngibl, Patrick Sattler, Benedikt Jaeger, Juliane Aulbach	2021
Ben Riegel	Assessing Link Utilization From Passive Datasets	BA	Simon Bauer, Johannes Zirngibl	2021	[URL]
Lorenz Lehle	Efficient Processing of Large Network Captures	BA	Lars Wüstrich, Johannes Zirngibl, Christian Lübben	2021
Zeynep Sonkaya	Development of an Efficient Large Scale DNS Scanning Pipeline	IDP	Patrick Sattler, Johannes Zirngibl	2021
Tobias Wothge	Industrial Control Systems (ICS) Protocol Detection	BA	Patrick Sattler, Lars Wüstrich, Johannes Zirngibl	2021
Karoline Ilse	IPv6 Deployment Analysis using BGP Announcements	BA	Patrick Sattler, Johannes Zirngibl, Juliane Aulbach	2021
Roland Bernhard Reif	Detecting BGP Hijacking in Real Time	IDP	Patrick Sattler, Johannes Zirngibl	2020
Christian Wahl	Analyzing the Stability and Expressiveness of Large-Scale DNS Scans	MA	Patrick Sattler, Johannes Zirngibl, Juliane Aulbach	2020
Jasper von der Heidt	Analyzing PTP Master Clocks in the Wild	BA	Johannes Zirngibl, Max Helm, Henning Stubbe	2020
Philippe Buschmann	Analyzing Quic in the wild	MA	Johannes Zirngibl, Patrick Sattler, Benedikt Jaeger, Juliane Aulbach	2020
Christian Kilb	Blocklists: What is blocked and why?	IDP	Johannes Zirngibl, Patrick Sattler, Markus Sosnowski	2020
Sebastian Heinrich Kappes	An Analysis of the Development and Early Deployment of Encrypted SNI	BA	Johannes Zirngibl, Max Helm, Patrick Sattler	2020	[URL]
Marcel Mussner	In Depth Analysis of QUIC’s Lack of Kernel Optimizations	MA	Benedikt Jaeger, Johannes Zirngibl	2020
Lennart Keller	Packet Pacing with the QUIC Protocol	BA	Benedikt Jaeger, Johannes Zirngibl	2020
Robert Dillitz	Uncovering PTP Master Clocks in the Wild	BA	Johannes Zirngibl, Max Helm, Henning Stubbe	2020
Roland Bernhard Reif	Analysis of EDNS Client-Subnet Load Balancing	BA	Patrick Sattler, Johannes Zirngibl	2019
Marcel Kempf	Evaluation of the QUIC Spin Bit for RTT Estimation	BA	Benedikt Jaeger, Johannes Zirngibl	2019
Leo Schedelbeck	rDNS Leaks - Disclosing the Real Infrastructure of Shadowed Services	BA, MA, IDP	Johannes Zirngibl, Patrick Sattler	2019
Dominik Kreutzer	Nameserver Rate Limits - Dynamic Adjustment of Scan Behavior	BA, MA, IDP	Johannes Zirngibl, Johannes Naab	2019
Nicolas Buchner	Influence of Network Conditions on PTP Accuracy	BA	Max Helm, Henning Stubbe, Johannes Zirngibl	2019	[URL]