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IXP-from-Scratch: Network and Security Design

IXP-from-Scratch: Network and Security Design

Thomas Liske

11 min read

In the second of our “IXP from Scratch” series, we introduce network and security design decisions as well as implementations we made at DD-IX, an Internet Exchange in Dresden, Germany. In principle, an IX consists of a single broadcast domain, but in practice it has to operate several services sec…

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Innovative Approaches to Combating SPAM: Lessons from IP Leasing

Innovative Approaches to Combating SPAM: Lessons from IP Leasing

Jolita Puzakova

4 min read

SPAM and abuse remain persistent challenges across various digital platforms, threatening user trust and operational integrity. Jolita Puzakova and colleagues explore how they tackle this persistent threat with a three-fold approach.

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IXP-from-Scratch: Building a New IX

IXP-from-Scratch: Building a New IX

Thomas Liske

5 min read

In this new series "IXP from Scratch", we report about our endeavor of building DD-IX, an Internet Exchange located in the city of Dresden, Germany. DD-IX is driven by a grassroots community that loves contributing to a resilient and efficient Internet. We start with some basic background and will …

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Putting the MAU Into meowmeow: On Personal ASNs

Putting the MAU Into meowmeow: On Personal ASNs

Tobias Fiebig

14 min read

Is the use of personal ASNs to gain hands-on operational experience really such a bad idea, or is this one of the ways we make sure the Internet remains a place of equitable participation, expression and learning? In this guest article, Tobias Fiebig shares his views.

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Driving the ASN Truck Without a Licence

Driving the ASN Truck Without a Licence

Radu Anghel

16 min read

Natural persons have been registering ASNs for a long time, and for many reasons, from running small businesses to keeping up a hobby. This isn't something wrong that needs to be fixed. ASNs should be assigned based on need. But 'need' should not be defined as “my friends have one so I need one too…

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A Multifaceted Look at Starlink Performance - The Good, the Bad and the Ugly

A Multifaceted Look at Starlink Performance - The Good, the Bad and the Ugly

Nitinder Mohan

9 min read

How does Starlink stack up against terrestrial ISPs as a global service? And exactly what factors impact its operations? A new multifaceted active and passive measurement study uncovers the good, the bad and the ugly when it comes to Starlink performance.

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Paola Grosso: Defining a Responsible Internet

Paola Grosso: Defining a Responsible Internet

Alun Davies

2 min read

For many, the Internet is essentially a black box. We connect with other endpoints to send and receive data, but we have little insight into what happens in between. Dr Paola Grosso talks about how CATRIN seeks to provide more visibility and control so we can make more responsible decisions on how …

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20 Years of Inferring Interdomain Routing Policies

20 Years of Inferring Interdomain Routing Policies

Savvas Kastanakis

9 min read

As the structure of the Internet has become ever flatter over time, what effect has this had on the dynamics of inter-domain routing? A new study examines whether 20-year-old insights into the characteristics of routing policies still hold.

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Whose CIDR Is It Anyway?

Whose CIDR Is It Anyway?

Jan Schaumann

22 min read

IP address space wasn't divided evenly, and after years of re-allocation and re-assigment, the question that comes to mind is: who owns what parts of it? In the latest in a series of articles on the centralisation of the Internet, Jan Schaumann digs into the data to try to get a clearer view.

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