IP Addressing

Blogs

No Big Run on IPv4 in 2011

2011 was an interesting year for IPv4: in February 2011, the Internet Assigned Numbers Authority (IANA) handed out their last free IPv4 address blocks to the Regional Internet Registries (RIRs). In April 2011, the APNIC (the Regional Internet Registry for the Asia Pacific region) started allocating from its last /8. At the RIPE NCC we did not see a big jump in IPv4 address allocations in 2011, as anticipated by some observers. more»

Reducing Unreachable ICANN Registrations

Recently ICANN published a report on inaccurate registration data in her own databases. Now the question is presented to the world how can we mitigate this problem? There seems to be a very easy solution. ... The question to this answer seems simple. To know who has registered with an organisation. This makes it possible to contact the registered person or organisation, to send bills and to discuss policy with the members. more»

IP Address Reputation Primer

There has been a lot of recent discussions and questions about reputation, content and delivery of email. I started to answer some of them, and then realized there weren't any basic reference documents I could refer to when explaining the interaction. So I decided to write some. This post is about IP address reputation with some background on why IPs are so important and why ISPs focus so heavily on the sending IP. more»

Data Quality in the RIPE NCC Service Region

In an earlier article on CircleID, Registry Data Quality Assessment, we discussed the importance of high quality and accurate IP registry data. At that time, we focused mainly on the accuracy of legacy address space: IP addresses that were given out prior to the existence of the RIPE NCC and that are not part of the current registry system. In this article, we want to present the efforts to keep the address space that is the responsibility of the RIPE NCC up to date and well maintained. more»

CircleID's Top Ten Posts of 2011

Here are the top ten most popular news, blogs, and industry updates featured on CircleID in 2011 based on the overall readership of the posts for the year. Congratulations to all the participants whose posts reached top readership and best wishes to the entire community for 2012. Happy New Year! more»

DDI Integration: We Need IPAM

I am a big fan of DDI (DNS, DHCP and IPAM) as magical trio to manage all transactions on network infrastructures... Or to say the least: make it possible. Basically it makes these "Core Network Services" concise, manageable and integrated. It basically makes the network infrastructures of today and the future possible. There is however one thing that continuously seems to irritate when talking about integrating these services on networks. more»

IP Address Space Covered by Certificates

Since the RIPE NCC launched its Resource Certification service, there is a steady increase in the number of prefixes covered by certificates. The Resource Certification (RPKI) service was launched at the beginning of 2011. The system enables network operators to perform Border Gateway Protocol (BGP) origin validation, which means that they can securely verify if a BGP route announcement has been authorised by the legitimate holder of the address block. more»

Breaking the Internet HOWTO: The Unintended Consequences of Governmental Actions

"Breaking the Internet" is really hard to do. The network of networks is decentralized, resilient and has no Single Point Of Failure. That was the paradigm of the first few decades of Internet history, and most people involved in Internet Governance still carry that model around in their heads. Unfortunately, that is changing and changing rapidly due to misguided government intervention. more»

Borders, In Bankruptcy, Aims To Sell 65,536 IPv4 Addresses at $12/Address

With IPv4 address exhaustion upon us, it appears that the going market rate for IPv4 addresses is now $12/address. Over at the Register, Kevin Murphy reports on a bankruptcy filing from Borders seeking to sell a /16 block of to healthcare software vendor Cerner for a total of $786,432. At $12 per IPv4 address, this sets a new public record given that the previous high was Microsoft's acquisition of a block of Nortel IPv4 addresses... more»

DNS Measurements with RIPE Atlas Data

As described in New RIPE Atlas Features in the Making, each RIPE Atlas probe performs "anycast instance discovery" measurements. This means, for each DNS root name server, we determine which instance of a name server a probe uses. We compile the data from all probes and build maps showing these results for each Atlas probe. In other words, the map shows the "gravitational radius" for root DNS server instances. more»

ARIN Launches WHOWAS: Trial Service Providing Historical Information for a Given IP Address

American Registry for Internet Numbers (ARIN) is running a trial service that gives users access to historical IP whois data – that is, it will tell you who was responsible for an IP address or block of IPs. The service is not automated and if you want to access it you will need to submit a request via email with information about not only what you want to know, but why you are interested in accessing the information. more»

IPv6 Deployment from a Different Perspective

Often when looking at IPv6 deployment statistics, the size of the organisation or the network is not taken into account. In this article, we look at IPv6 deployment of Local Internet Registries (LIRs) per country in correlation to the size of the LIR. When looking at IPv6 deployment at the LIR level, we can look at the following two metrics... more»

IPv6 RIPEness: More Smaller and Younger Organizations Deploying IPv6

The number of RIPE NCC members [also referred to as Local Internet Registries (LIRs)] that have an IPv6 allocation continues to grow -- in absolute terms as well as in percentages. 46% of all RIPE NCC members have one or more IPv6 RIPEness stars. ... Do new members pick up IPv6? Are older members with more experience, well-established businesses and customer base dominating IPv6 RIPEness scores? And what about the size of a member? Are small and large members adopting IPv6 in equal proportions? In this article we look into answering these questions. more»

IPv4 Historical Imbalances and the Threat to IPv6

It is an open secret that the current state of IPv4 allocation contains many accidental historical imbalances and in particular developing countries who wish to use IPv4 are disadvantaged by the lack of addresses available through ordinary allocation and are forced into purchasing addresses on the open market. As most of the addresses for sale are held by organisations based in the developed world, this amounts to a transfer of wealth from the developing world to the developed world, on terms set by the developed world. more»

Visibility of Prefix Lengths in IPv4 and IPv6

Internet routes are specified for an address prefix. The shorter the prefix, the more general the route. A shorter prefix covers more address space and thus a bigger part of the Internet. Very long prefixes cover few addresses and are used for local routing close to the destination address. In general, it is not necessary to distribute very long prefixes to the whole Internet, because a more general, shorter prefix is sufficient to direct packets in the direction of the destination. more»

News Briefs

A Closer Look at World IPv6 Day

RIPE NCC to Conduct Live Measurements for World IPv6 Day

Citrix Case Study Features Nixu DDI

Study Reports on Baseline of Global IPv6 Adoption

Asia Pacific IPv4 Exhausted, Becomes First Region Unable to Meet IPv4 Demand

Microsoft Offers $7.5 Million to Buy 666,624 IPv4 Addresses

Internet Census: 4 Billion Addresses Just Not Enough for 7 Billion People

ARIN Recognizes Interop for Returning IPv4 Address Space

Vinton Cerf Elected and Paul Vixie Re-elected to the ARIN Board of Trustees

IPv4 Address Space Now Below 5%, Says NRO

NTIA Holding Workshop on IPv6

Politico Writes of Comcast's IPv6 Effort

Silvia Hagen: It's Not About IPv6 Transition But Urgent Integration

IPv6 Posing New Security Issues

Verizon: Advent of 4G LTE, WiMAX-Based Devices Will Only Increase the Need for IPv6

Indian Government Plans to Begin Use of IPv6 from March 2012

ICANN Putting IPv6 Addresses Into Context

VPN Security Flaw Makes IP Address of Users Using IPv6 Easily Traceable

Free Pool of IPv4 Addresses Drops to 8.5 Percent

OECD Reports on State of IPv6 Deployment for Policy Makers

Most Viewed

Most Commented

IPv6: Extinction, Evolution or Revolution?

Whither DNS?

DNSSEC: Once More, With Feeling!

Comments on an IP Address Trading Market

The Trouble With 6to4

Industry Updates

Nixu NEE Powers Location-Aware IPAM

Nixu DDI Awarded Gold Medal for Its IPv6 Support

UK Cabinet Office Looks to BlueCat Networks' Expertise and Best Practices for Securing PSN

BlueCat Networks Helps Organizations Transition to IPv6 with HP

BlueCat Networks to Host Webinar on DNS, DHCP and IPAM Featuring Independent Research Firm

IPAM and DHCPv6 Shake Hand in Nixu NameSurfer 7.1 Series

Quova Rebrands as Neustar IP Intelligence

BlueCat Networks Partners with Computacenter to Deliver Cloud-Ready IP Address Management (IPAM)

Giving VIP Treatment to IPAM with Nixu NameSurfer Suite 7.0.2

Alesund Kommune Replaces Windows 2000 Server with BlueCat Networks' DNS/DHCP Solution

Asymmetric DHCP Failover Support with Nixu DHCP Server 2.4 Series

IBM and BlueCat Networks Sign Patent Cross-License Agreement

BlueCat Networks' New IPAM Release Reduces Network Administration Time and Effort by 80%

BlueCat Networks' IPv6-Ready Solutions Pass Critical International Security Standards

Introduction to Nixu Software: End-to-End Software-Based DNS, DHCP, IPAM Solutions for Your Network

Participants – Random Selection