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»

Neustar Professional Services: Additional Expertise to Improve Productivity

While it would be nice if your company had IT staff members that were experts in every technology, that is just not realistic. And today, many companies face the challenge of finding the appropriate and specialized expertise that is required to deal with ongoing issues such as network optimization, performance degradations, network risks, and more. more»

A Look at the Growth of the Internet Routing System

Geoff Huston, APNIC's Chief Scientist, is visiting the RIPE NCC this week to spend time with his fellow Regional Internet Registries (RIR) colleagues and to strengthen collaboration on shared projects. We've used this opportunity to invite him to produce the 'Interesting Graph of the Week'. Geoff has been monitoring the global routing system for many years. Here are his most recent observations. more»

Limitations of Carrier Grade NAT, and Some Workarounds

Qtel, the largest carrier in Qatar (and nearly the only Internet provider) appears to connect all their users (~600K) to the Internet through just one or a very few public IPv4 addresses. 82.148.97.69 was their single public address in 2006-2007. How can network address translation (NAT) put all those users through just one IP address? more»

Registry Data Quality Assessment

Accurate registration data is essential for the global registry system. To ensure that the RIPE Registry's data is correct, up-to-date and accurate, the RIPE NCC regularly checks the Registry data to fix inconsistencies and outdated information. We recently evaluated and analysed all IP address ranges registered in the RIPE Database and were pleased to find that 96.09% of those records are considered accurate. more»

IPv6 Transitional Uncertainties

The telecommunications industry has been around for quite some time. Whether you take it as a starting date the first efforts with the wired telegraph in the 1830's, or the telephone in the 1870's, this industry has been around for quite a long time. During this periods it has made huge achievements, and there is no doubt that the impacts of this industry have changed our lives in many ways... It is literally amazing that this industry has managed to preserve dial tone on telephone handsets while completely changing the underlying network and switching fabric of the telephone system numerous times. more»