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Mirjam Kühne

RIPE NCC Staff — 10 Jul, 2010 04:23 PM
The Internet for Things by Mirjam Kühne — last modified 17 Oct, 2016 08:56 AM

Please read this guest post by Byron Ellacott, Senior Software Architect at APNIC: The Internet of Things without the Internet is just things, and we’ve had things since the first caveman used a pointy stick to draw on a wall. What then does the Internet bring to things to justify a capital T?

Interesting Graph - How Complete is the RIPE Routing Registry by Mirjam Kühne — last modified 01 Dec, 2016 12:30 AM

It is often claimed that the Internet Routing Registry is not accurate and complete enough. Is this really the case? In this article we are looking at how many organisations that receive an Autonomous System Number from the RIPE NCC use the RIPE Routing Registry.

New RIPE NCC Address Statistics Reports by Mirjam Kühne — last modified 17 Oct, 2016 09:00 AM

How do we know which addresses are still unallocated or unassigned? Find below a proposal to include unallocated address space in the statistics files the Regional Internet Registries publish daily.

IPv6 RIPEness Update and Methodology by Mirjam Kühne — last modified 01 Dec, 2016 12:24 AM

This is the first in a series of "interesting graphs" we are publishing in CircleID on a regular basis. The graph will always be published on RIPE Labs as well together with additional information and details. Here we will also describe the methodology used when producing those statistics.

RIPE Labs 2.0 is going live by Mirjam Kühne — last modified 17 Oct, 2016 09:00 AM

RIPE Labs has been migrated to a new platform. At the same time we added some more functionality and made it easier to participate and navigate.

DNSSEC Key Roll-over Pitfalls by Mirjam Kühne — last modified 17 Oct, 2016 09:00 AM

A few weeks ago the RIPE NCC was alerted to a rapid increase in DNSKEY queries for its signed reverse DNS zones. We did some investigations. Read about the results in this article.

IPv6 Deployment: Trends and Tidbits of 4,800 Dual-stack ASes by Mirjam Kühne — last modified 17 Oct, 2016 09:00 AM

This article is based on a lightning talk Matthew Luckie of CAIDA presented at the recent NANOG 54 meeting of work done in conjunction with Amogh Dhamdhere and Bradley Huffaker. The article is structured around a number of hypotheses about the state of IPv6 deployment and the IPv6 capability of networks. In order to verify these hypotheses, the authors looked at various data sets. The full slide set can bee seen on the NANOG 54 web site.

Update on AS Path Lengths Over Time by Mirjam Kühne — last modified 17 Oct, 2016 09:00 AM

One way to determine the denseness of the Internet, or its “interconnectedness”, is to look at the path length between Autonomous Systems (ASes). A while ago we looked at that and also at differences between IPv4 and IPv6 networks. Has this changed in the meantime? See our findings below.

Mozilla Uses RPKI by Mirjam Kühne — last modified 14 Oct, 2018 12:24 PM

A few weeks ago, Mozilla started to use RPKI (Resource Public Key Infrastructure) and ROAs (Route Origin Authorization). Here is a quick introduction.

Introducing the RIPE NCC Roadmap by Mirjam Kühne — last modified 05 Dec, 2016 06:50 PM

We often get asked about the status of our different services and projects, and while we frequently publish updates on RIPE Labs, we now have a new tool that makes it easier to stay informed. We're happy to announce the RIPE NCC Roadmap, where you can get an overview of all the latest developments and future plans for these services in one place. This prototype, which is hosted on RIPE Labs, will be further developed as we receive your feedback, so please let us know what you think!

De-bogonising 128.0.0.0/16 by Kjell Leknes — last modified 01 Dec, 2016 12:01 AM

Please find below an update of our effort to help network operators clean-up redundant settings with respect to 128.0.0.0/16

What Ever Happened to...? by Mirjam Kühne — last modified 17 Oct, 2016 08:59 AM

... those LIRs that closed. The RIPE NCC now has over 8,000 members. But how many members have closed in the meantime and why?

First Measurement Results from IPv6 Launch by Mirjam Kühne — last modified 26 Jun, 2017 09:45 AM

Like last year during World IPv6 Day, the RIPE NCC has been doing various measurements during World IPv6 Launch on 6 June. We will publish the results in a series of articles on RIPE Labs.

Survey on Network Attack Detection and Mitigation by Sebastian Abt — last modified 17 Oct, 2016 08:59 AM

The Biometrics and Internet Security Research Group at the University Darmstadt is conducting a survey on network attack detection and mitigation in order to gain a deeper insight in processes, procedures and settings typically found in ISP networks.

Background Radiation in IPv6 by Mirjam Kühne — last modified 17 Oct, 2016 08:59 AM

Geoff Huston investigated to what extent the IPv6 Internet is polluted by "background radiation". Find below some interesting results and observations.

2011 Audit Results by Mirjam Kühne — last modified 17 Oct, 2016 08:59 AM

The RIPE NCC preforms audits of the Local Internet Registries contact data and resource registration data maintained by the LIR. In 2011 around 400 audits were opened and as of 17 January 2012 270 have been completed. In this article you can find some statistics and results of these audits.

RIPE Labs - What's it All About? by Mirjam Kühne — last modified 14 Nov, 2018 05:20 PM

RIPE Labs is a new platform designed by the RIPE NCC for network operators, developers and industry experts to expose, test and discuss innovative Internet-related tools, ideas and analysis that can benefit the RIPE community and RIPE NCC members.

Interesting Graph - AS Path Lengths Over Time by Mirjam Kühne — last modified 30 Nov, 2016 11:32 PM

One way to determine the denseness of the Internet, or its “interconnectedness”, is to look at the path length between Autonomous Systems (ASes). And are there any differences visible when looking at IPv4 or IPv6 networks? See our findings in this article.

RIPE BoF at RIPE 61 in Rome by Mirjam Kühne — last modified 17 Oct, 2016 08:58 AM

Do you want to pick the brains of someone in the same business? Would you like to shape best common practices? Got an idea for a new tool to make life easier, but not sure how to develop it. Looking for help? Suggest topics for the RIPE BoF.

Sending and Receiving Emails over IPv6 by Mirjam Kühne — last modified 18 Dec, 2017 08:35 AM

The change to IPv6 creates new challenges to keep spam out of email. Because of the sheer size of the IPv6 space, it seems more efficient to build a domain-blocking and reputation system rather than an IP-blocking system. But how do we ensure emails over IPv6 have an authenticated domain?

Tribute to Dr. Robert Blokzijl 1943 - 2015 by Mirjam Kühne — last modified 04 Mar, 2018 11:02 AM

Dr. Robert Blokzijl, RIPE Chair Emeritus and founding member of the RIPE community, died aged 72 on 1 December 2015. If you would like to leave a message of condolence or your own memory of Rob, please post it at the end of this page and we will pass it on to his family.

Interesting Graph - IPv4 Unassigned by Mirjam Kühne — last modified 08 Dec, 2017 11:24 AM

With the IPv4 address space nearing its end, we are closely monitoring the number of address not yet assigned or allocated. See below one way of measuring them.

Returning Unannounced Legacy IPv4 Address Space by Mirjam Kühne — last modified 17 Oct, 2016 08:57 AM

In the early days of the Internet, many organisations received very large amounts of address space. Some of it has not been used and is not visible on the Internet. As the RIPE NCC's pool of available IPv4 address space nears depletion, we are actively encouraging holders of unused unannounced space to return it.

RIPEstat Live Demo #1 by Mirjam Kühne — last modified 04 Jul, 2017 09:28 AM

This article summarises the first RIPEstat demo session that took place today, 25th January 2011. At the end of the article are the dates of the next demos, and options for providing feedback.

LIR Portal Migration: Main Improvements by Mirjam Kühne — last modified 30 Nov, 2016 11:06 PM

The LIR Portal is one of the most important communication tools between the RIPE NCC and its members. It has been migrated to a new system without any service interruption or significant changes for the users.

IPv6 Measurements - A Compilation by Mirjam Kühne — last modified 05 Dec, 2018 03:02 PM

This is the first part of the IPv6 measurements compilation - a list of IPv6 measurements conducted by various individuals and organisations.

IPv6 CPE Survey - Updated (January 2011) by Mirjam Kühne — last modified 17 Oct, 2016 08:57 AM

Based on new information we received since the last publication, we updated the IPv6 CPE matrix below. Please also note a call for help. We are preparing a detailed survey to gather more user feedback and would like you participate in this survey.

IPv6 Measurements - A Compilation (Part2) by Mirjam Kühne — last modified 30 Nov, 2016 10:52 PM

This is the second part of a compilation of IPv6 measurements produced by various organisations and individuals, including links to their measurements, explanations of their methods and the results of their studies.

IPv6 Crawler and Matrix by Mirjam Kühne — last modified 30 Nov, 2016 10:48 PM

Olivier Crepin-Leblond from the Internet Society chapter in England is announcing the results of a tool they designed and implemented. It is an “IPv6 crawler" that crawls through the DNS to detect IPv6 compliant servers. The results were interesting and can be viewed on an "IPv6 Matrix" showing IPv6 penetration on geographical maps.

The RIPE NCC and the World IPv6 Day by Mirjam Kühne — last modified 17 Oct, 2016 08:57 AM

The RIPE NCC supports the World IPv6 Day scheduled for 8 June 2011. Read more about plans for the event and the role that the RIPE NCC will play.

RIPE Labs Site is Changing by Mirjam Kühne — last modified 30 Nov, 2016 10:45 PM

We are migrating RIPE Labs to a new web site. Find here a description of the most important changes and some screenshots.

SI6 IPv6 Toolkit v1.3.1 Released by Mirjam Kühne — last modified 17 Oct, 2016 08:57 AM

This IPv6 Toolkit allows you to perform security assessments and trouble-shooting of your IPv6 network. A new version has been released recently.

Update on Assigning 32-bit ASNs by Mirjam Kühne — last modified 17 Oct, 2016 08:57 AM

The RIPE NCC has been assigning 32-bit Autonomous System Numbers since 2007. In this article we're providing an update about the number of 32-bit ASNs being assigned and how many are visible on the Internet.

RIPE NCC Outage Report - 29 September 2012 by Mirjam Kühne — last modified 30 Nov, 2016 10:35 PM

The weekend after the recent RIPE 65 Meeting in Amsterdam, we experienced a network outage that affected a number of services. Please find below a detailed report and analysis.

IPv6 on the March by Mirjam Kühne — last modified 17 Oct, 2016 08:56 AM

Tony Smith from APNIC is looking at the increase in IPv6 deployment now ARIN depleted their free pool of IPv4 addresses.

RIPE NCC Reaching Last /8 by Mirjam Kühne — last modified 17 Oct, 2016 08:56 AM

Now we have reached the last /8 of IPv4 addresses, we have looked at the allocation and assignment rate again. At the same time we also monitored the growth in IPv6 allocations.

Update on IPv6 Address Distribution by Mirjam Kühne — last modified 17 Oct, 2016 08:56 AM

At the recent RIPE Meeting we presented some IPv6 address distribution statistics which we would like to share with a wider audience. In the article below, you can find statistics on IPv6 allocations and assignments. In particular, the article details what affect the removal of the requirement to be multihomed had on the number of assignments and the relationship between the age of an LIR and the number of IPv6 addresses they have received.

Networks with IPv6 - One Year Later by Mirjam Kühne — last modified 20 Jul, 2017 10:13 AM

One year after we released the interactive graph to show the percentage of ASes announcing IPv6 prefixes, we looked at the progress made since then.

Small Incident on RIPE Labs Servers by Mirjam Kühne — last modified 17 Oct, 2016 08:55 AM

On Monday, 20 February, we discovered that the application servers belonging to the labs.ripe.net production cluster were compromised over the weekend. We investigated this and found no evidence that any harm was done to the servers.

From 80 to 8,000 - The Growth of the RIPE NCC Membership by Mirjam Kühne — last modified 30 Nov, 2016 10:20 PM

The RIPE NCC is 20 years old and it now has over 8,000 members. In this article, we drill down a bit more into the composition of our membership: what industry do RIPE NCC members come from and which countries account for the highest numbers of members and IP resources.

IPv6 CPE Survey - Updated (July 2010) by Mirjam Kühne — last modified 17 Oct, 2016 08:55 AM

As promised we publish an updated version of the IPv6 CPE survey and matrix as soon as we have additional information. Below you'll find the most up-to-date matrix, including data we received from some of the vendors in the meantime.

LIR Locator Tool by Mirjam Kühne — last modified 30 Nov, 2016 10:06 PM

The RIPE NCC is working on an Local Internet Registry (LIR) Locator tool that  provides the public with geographical information about LIRs and the services they offer in the RIPE NCC service region: Europe, the Middle East and parts of Central Asia.

RIPEstat Live Demo #2 by Mirjam Kühne — last modified 17 Oct, 2016 08:55 AM

This article summarises the second RIPEstat demo session that took place today, 22 February 2011.

Inter-Domain Routing Security: Deployment and Expectations by Mirjam Kühne — last modified 14 Oct, 2018 12:28 PM

This artlce looks at the results of a recent survey that was conducted to find out which network security methods are currently in place and how operators are preparing for the introduction of Resource Public Key Infrastructure (RPKI). As part of the study, we also conducted interviews with a number of routing experts and network operators.

Assigning 32-bit ASNs by Mirjam Kühne — last modified 30 Nov, 2016 09:54 PM

The RIPE NCC has been assigning 32-bit Autonomous System Numbers for quite some time now. In this article we're showing a number of statistics and some analysis.

IPv6 RIPEness by Mirjam Kühne — last modified 17 Oct, 2016 08:55 AM

Please find below a list of all articles related to the IPv6 RIPEness study showing how IPv6 is deployed by country, based on four different criteria.

Measuring World IPv6 Day - First Impressions by Mirjam Kühne — last modified 30 Nov, 2016 09:50 PM

World IPv6 Day took place on 8 June 2011. The RIPE NCC did a number of measurements both before and during World IPv6 Day. We've done an initial analysis of the data and would like to share our first impressions and results with you.

Public RIPEstat Demo Session Etiquette by Mirjam Kühne — last modified 17 Oct, 2016 08:54 AM

When joining the monthly public RIPEstat demo sessions, please note the following points of etiquette. This will make communication via webex easier for all participants.

IPv6 CPE Surveys by Mirjam Kühne — last modified 17 Oct, 2016 08:54 AM

Please find below all previous versions of the IPv6 CPE survey and matrix with the most recent version on top.

IPv6 Darknet Experiment by Mirjam Kühne — last modified 17 Oct, 2016 08:54 AM

Similar to an experiment done for IPv4 address space, Merit is now performing a darknet experiment with the IPv6 ranges that have been allocated to the RIRs. This also includes prefixes allocated to the RIPE NCC.

Connectivity in the LAC Region by Mirjam Kühne — last modified 21 Aug, 2017 09:50 AM

Please enjoy this guest post by Agustín Formoso, Software Developer at LACNIC: Regional connectivity is not an easy metric to measure. To do it properly you need measurements generated by multiple vantage points, located in as many places as possible (both geographically and logically). Besides, connectivity is not something strictly defined, as it has no standard definition (as opposed to many metrics we use in today’s Internet).

Usage of Teredo and IPv6 for P2P on Windows 10 and Xbox One by Mirjam Kühne — last modified 17 Oct, 2016 08:54 AM

Please find below a guest post by Darrin Veit and Christopher Palmer who originally posted this to the NANOG mailing list. It provides information for Xbox One, but also shares some relevant details on upcoming Windows functionality in terms of Teredo and IPv6 usage.

NTP Reflections by Mirjam Kühne — last modified 17 Oct, 2016 08:53 AM

After the recent amplification attacks involving NTP servers, John Kristoff, a researcher with Team Cymru, kindly agreed to publish an analysis of the history and timeline leading up to the attacks. Please find his contribution below.