Network Operations

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

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Support for Elliptic Curve Cryptography (ECC) in DNS Resolvers as Seen by RIPE Atlas

Support for Elliptic Curve Cryptography (ECC) in DNS Resolvers as Seen by RIPE Atlas

Maciej Andzinski

6 min read

The Elliptic Curve Cryptography (ECC) is becoming increasingly popular in DNSSEC. While it is sometimes considered to be a remedy for the low DNSSEC adoption rate, there is also a lot of controversy around it. One of the main concerns is that DNSSEC-validating resolvers don't always make use of ECC…

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Taking a Closer Look at the Last /8

Taking a Closer Look at the Last /8

Marco Schmidt

4 min read

We’ve updated our IPv4 graph to tell the whole story about our remaining address pool.

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10,000 LIRs with IPv6 Resources

10,000 LIRs with IPv6 Resources

Nathalie Trenaman

6 min read

This week, the RIPE NCC saw a milestone as the 10,000th Local Internet Registry (LIR) received IPv6 addresses. The first block of IPv6 addresses was allocated from IANA to the RIPE NCC in 1999, so we have been distributing IPv6 addresses for 17 years. In those years we have seen interesting poli…

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On the Internet, Everyone is Connected to Everyone Else. Right?

On the Internet, Everyone is Connected to Everyone Else. Right?

Geoff Huston

10 min read

We tend to make a number of assumptions about the Internet, and sometimes these assumptions don’t always stand up to critical analysis. We were perhaps ‘trained’ by the claims of the telephone service to believe that these communications networks supported a model of universal connectivity. Any tel…

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A Tale of Using Public DNS Servers in Iran — Part 3

A Tale of Using Public DNS Servers in Iran — Part 3

Babak Farrokhi

8 min read

Following my research on DNS reachability and performance, I found interesting results for specific domain names.

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RIPE NCC Members and Multiple LIR Accounts

RIPE NCC Members and Multiple LIR Accounts

Laura Cobley

7 min read

The RIPE NCC membership has raised concerns regarding members setting up additional Local Internet Registry (LIR) accounts. The RIPE NCC Executive Board is now asking the RIPE NCC membership to discuss this. The article below provides some background information, data and statistics for the discuss…

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A Tale of Using Public DNS Servers in Iran — Part 2

A Tale of Using Public DNS Servers in Iran — Part 2

Babak Farrokhi

8 min read

This is the second part in a series of articles looking at the use of DNS servers in Iran. For the second part I will continue measuring performance and reachability for two more sets of DNS resolvers: TIC and Verisign.

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A Tale of Using Public DNS Servers in Iran — Part 1

A Tale of Using Public DNS Servers in Iran — Part 1

Babak Farrokhi

4 min read

While most Internet users are not aware of the importance of DNS resolution in their overall web browsing experience, they often complain about shortage of bandwidth when experiencing sluggish Internet connectivity. It is no surprise that most of the service providers also ignore this fact by re…

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Evaluating IPv4 and IPv6 Packet Fragmentation

Evaluating IPv4 and IPv6 Packet Fragmentation

Geoff Huston

24 min read

One of the more difficult design exercises in packet-switched network architectures is that of the design of packet fragmentation. In this article, I’d like to examine IP packet fragmentation in detail and look at the design choices made by IP version 4, and then compare that with the design choice…

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