I am a Communications Officer at the RIPE NCC with a background in public sector communications and public relations. I started working at the RIPE NCC in 2021.
Ondřej Filip succeeded Christian Kaufmann as RIPE NCC Executive Board Chair in September. We caught up with him to talk about his involvement with the RIPE NCC and ask him questions about his new role.
I am a research engineer in the R&D department at RIPE NCC. I am interested in internet measurements, internet outages, data analysis, and cybersecurity. Prior to joining RIPE NCC, I defended my Ph.D. in cyber-security at Delft University of Technology (TU Delft), The Netherlands.
In this article we use data from RIPE Atlas probes to investigate the usage of 240/4, a block of IPv4 addresses 'reserved for future use', formally known as Class E in the wild.
Ondřej Caletka joined the RIPE NCC in 2020. He works as a technical expert in the Learning and Development team. His main responsibility includes developing and operating the lab environment for training courses and online learning.
Ondřej graduated from Czech Technical University in Prague and worked as network services administrator and developer for the Czech national research and education network CESNET before joining the RIPE NCC. He is also active in local IT communities around open source/free software, and acts as an IPv6 and DNSSEC ambassador, delivering talks and trainings at various events.
Dual stack is the most common way of deploying IPv6 in access networks. A recent standard defines IPv6-mostly access networks, providing IPv4 connectivity only for legacy devices while allowing modern devices to run IPv6-only. It is already well supported and allows network operators to gradually p…
Rene Wilhelm is a senior research engineer in the R&D department at the RIPE NCC. Coming from a background in particle physics, Rene joined the RIPE NCC in 1996. His interests are in data analysis, routing, Internet measurements and visualisation.
On 6 June 2012, the Internet Society organised the World IPv6 Launch. On that day, participants switched on IPv6 not just for testing, but to use permanently in production services. As ten years have passed since, we look at how IPv6 adoption and deployment has progressed, in terms of routing, end-…
Defining the criticality of RIPE NCC services provides a whole range of benefits. In this article, we take a look at the model we're adopting in order to determine a criticality rating for our services.
Since April 2019, I've worked as the HR Director for the RIPE NCC. In this job I'm responsible for aligning RIPE NCC's people management practices with the organisational strategy. Employee well-being and engagement is an important topic for the RIPE NCC, since without the people we would not be able to deliver to our members. As an organisation we take good care of our people but at the same time I see it as a personal challenge to always seek for improvement, with a personal touch.
The diversity of our workforce is very important to us at the RIPE NCC. It broadens our perspective as an organisation, makes us more responsive to new challenges, and improves the quality of our decision making. In this article, I explore what we can do together to stimulate and develop a more div…
I'm a Senior Technical Analyst with the RIPE NCC, working on the RIPE database.
The RIPE NCC was requested by the Database Working Group to perform an impact analysis for UTF-8 in the RIPE Database, including the technical and functional effects on the RIPE NCC itself. How would the RIPE Registry function with UTF-8? And what would be the impact on running the Registry?
At the RIPE NCC, we recently migrated one of the Hardware Security Modules (HSMs) we use to handle keys in RPKI. In this article, we give a detailed overview of the role HSMs play in the broader RPKI system and talk through the steps we took to carry out the migration process.