IPv6… more than half Top Level Domains not really on top.

At the recent ISOC Asia (1) conference in Kuala Lumpur a rather innocuous coffee break question was raised: could any one around the table name some of the major TLD’s still delinquent in their IPv6 support ? Nobody could answer on the spot but the question intrigued me.

A logical place to start looking for an answer was ICANN (2). Their Kim Davies provided a rather revealing perspective in a presentation (3) at ICANN 34 in april. 41% of the 280 existing TLD’s did not provide any IPv6 connectivity and more than 68% did without any diversity. Even for IPv4 it was surprising to see that 7.2% of TLD’s do not provide diversity, contrary to IANA rules. Two name servers separated by geography and topology are required and the same applies for IPv6 (gTLD applicant guidebook) (4).

IANA provides a list (5) of all legitimate TLD’s. including the recent fancy additions like .museum and the like.

Hurricane’s Mike Leber’s IPv6 deployment progress report (6), which is updated daily, provided another piece of the puzzle. When correlated to the IANA list, bingo, the culprits became visible, many obscure but a number of them rather out of place in this set. To refine the model, the title of Top Level Delinquent could be bestowed on the TLD with the largest number of domain names allocated under its ‘top’.

As ICANN and IANA can only do so much to enforce rules and regulations, an independent, up to date shame list, pillory of the cyber age, might help delinquents recognize themselves and also expose potential weak points in the internet. To give recognition to top performers on the other hand, why not create a TTLD honour roll for TLD’s who have 3 or more IPv6 authorities?

Oh yes, 9.6% of TLD’s still had open recursive name servers. Safe bet that some failed the grade in both the IPv6 and open recursivity categories oblivious of another Kaminsky type attack.

Progress is being made but to accelerate on the road of IP convergence and instill more confidence in the ‘public internet’, some additional discipline in the Domain Name area, starting with the top and working its way down, would certainly not hurt.

Yves Poppe
August 2009

1. http://www.isoc.org/isoc/conferences/inet/09/kualalumpur.shtml
2. http://www.icann.org/
3. http://www.iana.org/about/presentations/
4. http://www.icann.org/en/topics/new-gtlds/comments-2-en.htm
5. http://data.iana.org/TLD/tlds-alpha-by-domain.txt
6. http://bgp.he.net/ipv6-progress-report.cgi

IPv6 video testimonial: Google

Lorenzo Colitti of Google discusses the implementation of IPv6, which resulted in the launch of ipv6.google.com. It covers the planning and deployment, and future plans for making Google services available over IPv6.

INET Kuala Lumpur, MY 2009

Asia Regional Conference organized by the Internet Society (ISOC) in collaboration with the Asia Pacific IPv6 Task Force and the National Advanced IPv6 Centre of Excellence just concluded in Kuala Lumpur, Malaysia on the 20th of July 2009.

The key messages that came out of this event were

1. IPv6 is not the next generation technology but the current technology
2. There is no killer application for IPv6, the internet is the killer application
3. IPv6 Business Case – if you want to stay in business start enabling dualstack networks

More information about the conference is at:

Julian Vincent

Survey on investing in IPv6

Dear reader,

Worldwide, the number of Internet users is rapidly growing. For identifying and locating each user on the Internet,  IP addresses were developed. Currently, the expectation is however that in 2012 no more IP addresses are left to distribute which can seriously hinder the growth of the Internet.

A new protocol was developed as a solution to this problem: IPv6 protocol. Users can already implement IPv6 by replacing or modifying their software and hardware. A disadvantage is that IPv6 users are only able to communicate with other IPv6 users. At present, however, less than 1% of all internet users makes use of IPv6. Moreover, private companies are often unwilling to invest in IPv6.

This survey is designed as part of a research into the willingness to invest in IPv6 by companies. In this survey your opinion as IT professional will be asked regarding possible reasons that companies have for not investing in IPv6. If you are not familiar with the IPv6 protocol, you can read the remarks on the following page.

This survey will take approximately 5-10 minutes and is carried out by Delft University of Technology. The data and results will be treated completely anonymous.

Thank you in advance for your cooperation!

Satiesh Bajnath & Jos Vrancken
Delft University of Technology, Faculty of Technology, Policy and Management


IPv6 on the iPhone

(now that the headline has your attention…)

Not exactly. iPhone OS 3.0 still doesn’t support IPv6, but the good folks at Hurricane Electric have added IPv6 information to their IPv4 countdown widget:

It’s useful to have the latest info in my pocket.