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Testing Teredo
Testing Teredo
Geoff Huston — Apr 19, 2011 05:50 PM

How well does Teredo perform? This article reports on an exploration of Teredo performance using the 1x1 gif test technique.

RIPEstat Live Demo #4
Mark Dranse — Apr 19, 2011 05:00 PM

This article summarises yesterday's RIPEstat demo session, including new features, changes and improvements. At the end of the article you can find the date of the next demo, and options for providing feedback.

Using the ‘Maximum Length’ Option in ROAs
Using the ‘Maximum Length’ Option in ROAs
Alex Band — Apr 19, 2011 04:45 PM

In the resource certification system you specify your routing policy via Route Origin Authorization (ROA) objects. One of the options you can set is the ‘Maximum Length’, which specifies the maximum length of an IP address prefix that the AS is authorised to advertise. In this article we will analyse if this feature is being used properly.

Resource Certification Web Validator Released
Alex Band — Apr 13, 2011 10:05 AM

We have just released the RIPE NCC Resource Certification Web Validator. It will allow you to validate a Route Origin Authorisation (ROA) file against the RIPE NCC Trust Anchor through a web form, either online or locally.

Resource Certification Statistics
Resource Certification Statistics
Alex Band — Apr 11, 2011 04:15 PM

Since we started providing the certification service on 1 January 2011, many LIRs made use of the service. In this article you can see some graphs showing the number of certificates in place today, as well as certified address space.

Preparing an IPv6 Addressing Plan
Sander Steffann — Mar 25, 2011 03:10 PM

In the fall of 2010 SURFnet, the Dutch National Research and Education Network, held a workshop on IPv6. One of the issues that arose was making an IPv6 addressing plan. While this seems a simple subject at first, it turned out to be more complex. SURFnet decided to document best practices and make the results freely available.

Unsolicited Internet Traffic from Libya
Unsolicited Internet Traffic from Libya
Emile Aben — Mar 23, 2011 03:40 PM

Amidst the recent political unrest in the Middle East, researchers have observed significant changes in Internet traffic and connectivity. In this article we tap into a previously unused source of data: unsolicited Internet traffic arriving from Libya. The traffic data we captured shows distinct changes in unsolicited traffic patterns since 17 February 2011.

RIPEstat Live Demo #3
Mark Dranse — Mar 22, 2011 03:30 PM

This article summarises the third RIPEstat demo session that took place today, 22 March 2011. At the end of the article you can find the date of the next demo, and options for providing feedback.

6to4 - Why is it so Bad?
6to4 - Why is it so Bad?
Emile Aben — Mar 21, 2011 12:15 PM

In a previous article we measured that a large percentage of 6to4 connections fail. In this article we show our attempts to find out why these connections fail.

New and Improved RIPE Registry Global Resource Service
Paul Palse — Mar 21, 2011 10:30 AM

We have redesigned and improved the way we mirror other databases. We now have a method of translating the operational data from other registries (for instance from other Regional Internet Registries or the RADb) into the RIPE Database structure.

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