More IPv4 Used but Unallocated

matt — Mon, 31 Aug 2009 15:00:53 +0000

Some IPv4 /8s have been used to number IP networks in an unofficial and improper way. That is, they have been used without being properly allocated and registered in a public Whois database. In most cases these networks are mostly private, used internally in their organization, and so the addresses are not seen in the Internet’s routing system. The organizations using these addresses have relied on the overall availability of IPv4 addresses so that there was no pressing need to allocate all of the /8s that IANA manages. With the decreasing IANA free pool of unallocated IPv4 addresses, it is now clear that every last one of them will ultimately be allocated to the RIRs.

The networks using these officially unallocated addresses are intended to be private, not visible to the global Internet. Nonetheless, their use can be detected when the private parts of networks connect to their public Internet facing connections, such as the connections to their service providers. The addresses leak in e-mail message headers, DNS queries and other random traffic. In some cases, this unofficial use can cause operational problems.

IANA staff has tried to research which /8s are being used in this way. In 2008 we sponsored research by Duane Wessels into which /8s see the most use. He reported on his research at OARC’s DNS Ops meeting and I wrote about it on this blog. Based on this work, we think the /8s with the most unofficial use are:

1, 2, 5, 14, 23, 39, 42, 100, 101, 107, 175 and 176

Duane Wessels’ research was part of a number of presentations that were part of an awareness campaign we worked on. This included talks at network operator groups and articles in industry journals and in some cases discussions with the users of the unallocated space where we could identify them. While we have discussed the issue with some of these network operators, we haven’t been able to speak directly to everyone making unofficial use of this address space because they tend to do so in private networks.

Leo Vegoda -Source

At dot WHAT?

matt — Mon, 31 Aug 2009 13:42:56 +0000

We all the know the basics; .org .net .com .edu .gov .handfullofothers. Now it appears the flood gates are open!

“New gTLD ProgramOpenness Change Innovation

Since ICANN was founded ten years ago as a not-for-profit, multi-stakeholder organization dedicated to coordinating the Internet’s addressing system, one of its foundational principles has been to promote competition in the domain name marketplace while ensuring Internet security and stability. The expansion of the generic top-level domains (gTLDs) will allow for more innovation, choice and change to the Internet’s addressing system, now represented by 21 gTLDs.

The decision to introduce new gTLDs followed a detailed and lengthy consultation process with all constituencies of the global Internet community represented by a wide variety of stakeholders – governments, individuals, civil society, business and intellectual property constituencies, and the technology community. Also contributing to this policy work were ICANN’s Governmental Advisory Committee (GAC), At-Large Advisory Committee (ALAC), Country Code Names Supporting Organization (ccNSO), and Security and Stability Advisory Committee (SSAC). The policy was completed by the Generic Names Supporting Organization (GNSO) in 2007, and adopted by ICANN’s Board in June, 2008. The program is expected to launch early 2010.

The ICANN team continues to share with the Internet community the ongoing program developments through the release of draft applicant guidebooks, excerpts, explanatory memos and in -person meetings. All details can be found on this page.

In a world with over 1.6 billion Internet users – and growing – diversity, choice and competition are key to the continued success and reach of the global network.”

Internet Corporation for Assigned Names and Numbers – Source

CrySineWave » DNS

More IPv4 Used but Unallocated

At dot WHAT?