Network Operations

Tags: dns routing security rpki ipv4 ipv6 transfers bgp peering internet infrastructure ntp

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IPv4 Address Allocation Rates

IPv4 Address Allocation Rates

Robert Kisteleki

5 min read

On 30 January 2010 the RIR system reached a small milestone: on this day APNIC has surpassed the RIPE NCC in terms of total allocated/assigned IPv4 address space, as seen in the RIR stats files. On this occasion we decided to look a bit into how IPv4 allocation/assignment rates changed over the las…

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DNSSEC Key Roll-over Pitfalls

DNSSEC Key Roll-over Pitfalls

Mirjam Kühne

2 min read

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.

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Members and Their Number Resources

Members and Their Number Resources

Daniel Karrenberg

2 min read

In the previous article we looked at membership growth over the years. In this article we will see how RIPE NCC Internet number resources are distributed among the membership, as of 1 January 2010.

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Measuring DNS Transfer Sizes - First Results

Measuring DNS Transfer Sizes - First Results

Daniel Karrenberg

9 min read

Here are the first results of our DNS transfer size measurements. We are interested to determine any possible problems for users of K-root once it starts giving DNSSEC responses to resolvers that request them. DNSSEC responses are significantly larger than current responses. We are interested to le…

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2009 - The year before IPv6 took off?

2009 - The year before IPv6 took off?

Emile Aben

3 min read

We've done some measurements that show encouraging results.

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REX Supports IPv6

REX Supports IPv6

Daniel Karrenberg

3 min read

REX has been supporting queries on IPv6 addresses for a couple of weeks already. Some inquisitive users have already found out.

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Testing your Resolver for DNS Reply Size Issues

Testing your Resolver for DNS Reply Size Issues

Anand Buddhdev

6 min read

Some weeks ago, we installed a reply-size tester application at the global instances of K-root. We want to make this test available to more people, in an easy-to-use way. We have therefore written a Java application for this purpose.

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