Internet-Wide Scans

Why am I receiving traffic from Technical University of Munich, specifically from the IP address 131.159.24.205?

We conduct various regular and ad-hoc Internet-wide scans for protocols such as MPTCP, QUIC, etc. These are purely scientific and we never attempt to intrude into any system.

We never attempt to abuse security vulnerabilities on your system, guess for passwords or upload files to your systems. We only collect information about your service that is publicly visible to the Internet.

We hope that our data collection helps us to understand the Internet better. We are an academic institution and will try to publish all our findings to a wider audience. However, we will never publish parts of our dataset which clearly identifies you or your company.

I do not want to be part of this research. How can I opt out?

You can just block connection attempts from our scanning system (131.159.24.205) or send us an e-mail and we will add you and your network to our blacklist.

What are you measuring exactly?

In the current study, we are carrying our network scans of IPv4 address space to understand the adoption of Multipath TCP protocol over the Internet. Specifically, our study sheds light on whether in-network middleboxes inhibit the usage the protocol at large. You can find more about our research at mptcp.io.

I want to know more about the study. Who should I contact?

We will be more than happy to answer any queries you have about our study and research. Please contact Dr. Nitinder Mohan at mohan@in.tum.de.