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25,000 LIRs - An End to the Milestone Highs?

25,000 LIRs - An End to the Milestone Highs?

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Rene Wilhelm

12 min read

Little more than twelve months after we passed the 20,000 active LIRs mark, the number of LIR accounts reached a new milestone on 2 October 2019. As the number of available IPv4 addresses in our pool dropped to 3 million, applications for new LIRs exploded. In July alone, we saw a record number of…

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How to Choose DNS TTL Values

How to Choose DNS TTL Values

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Giovane Moura

10 min read

There is no consensus on how to choose DNS time-to-live (TTL) values for domain names. Yet, TTLs are incredibly important, given that they indirectly control how long resolvers cache records, directly influencing user experience.

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How Diverse is RIS?

How Diverse is RIS?

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Emile Aben

8 min read

Is the current set of the RIPE Routing Information Service (RIS) peers providing a good level of diverse data? Let's look at some measurement results.

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Measuring the Impact of DNS Flag Day

Measuring the Impact of DNS Flag Day

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Willem Toorop

10 min read

DNS Flag Day was the result of a collaborative effort and agreement of DNS implementers and DNS resolver operators to commit to no longer providing workarounds for non-standards-compliant authoritative nameservers as of 1 February 2019. In the lead up to DNS Flag Day, and as part of the outreach…

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ARTEMIS: an Open-source Tool for Detecting BGP Prefix Hijacking in Real Time

ARTEMIS: an Open-source Tool for Detecting BGP Prefix Hijacking in Real Time

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Vasileios Kotronis

15 min read

ARTEMIS is a defense approach against BGP prefix hijacking attacks. It is (a) based on accurate and fast detection operated by the AS itself, by leveraging the pervasiveness of publicly available BGP monitoring services, and it (b) enables flexible and fast mitigation of hijacking events. In this a…

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Routing to and from the Netherlands

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Marco Hogewoning

5 min read

Following earlier publications, Radiocommunications Agency Netherlands asked if we could perform an analysis of the Dutch market – in particular, the routing arrangements between networks.

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Shaping the Internet: History and Impact of IXP Growth

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Ignacio Castro

5 min read

It’s 1990: the Internet has a few million users and the first commercial companies have recently embraced this new distributed infrastructure.

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Five Years at the Edge: Recording the Evolution of Web Usage from an ISP

Five Years at the Edge: Recording the Evolution of Web Usage from an ISP

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Danilo Giordano

7 min read

While 2018 has no doubt been another big year in the world of the Internet, it often pays to look at how it compares to previous years to understand and forecast growth or decline trends.

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Geopolitics of Routing

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LOUIS PETINIAUD

8 min read

The goal of this article is to introduce a methodological basis for a geopolitical analysis of the Internet and to illustrate the geopolitics of cyberspace. For this purpose, we used the BGP feeds provided by the RIPE Routing Information Service to regularly infer AS-level connectivity graphs. We h…

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