Factsheet: IPv6

by Kieren McCarthy on October 25, 2007

It’s been a long while since we posted a factsheet – a clear guide to a technical subject written in plain English. Today we publish one on a very technical, but very important subject: IPv6.

Internet Protocol version 6 is important for the Internet’s continued expansion for future generations. The number of free address under the existing IPv4 system are rapidly running out. What Internet engineers *do* know, however, is that IPv6 provides a solution by offering a mind-boggling number of IP addresses, that should see us well into the future. The difficulty of course is that this is a technical subject but it requires non-technical people to understand it.

This factsheet on IPv6 is very far from an authoritative text on this matter. It is barely even an introduction. But it is a start and we hope it will get people interested in the issue. Read and enjoy.


Dandjinou Pierre 10.28.07 at 5:19 am

This is a timely publication which will be useful for awareness raising, namely towards policy makers as well as network operators. It will be strategic to also have it in other languages than English.

Pierre Dandjinou
President, ISOC Benin

Elisabeth Porteneuve 10.28.07 at 8:57 am

The song of the year at RIPE 55

To be read absolutely!

Paul Levins 10.28.07 at 12:28 pm

Actually I think this is the song of the year:


Jordi Palet 10.28.07 at 1:43 pm

Since last Friday, all the RIRs have a public statment of suport, so it is five out of five.

IPv6 is available since 2001 in ALL the major Operating Systems, not just in some !

I don’t think is good in this kind of document to talk about a deprecated protocol such as NAT-PT, morover, when there are others. It will be much better to talk about translation and proxys.

Widespread deployment is a confusing term now that there is a huge amount of transition IPv6 traffic … IPv6 is already here, we like it or not !

Onofrio ("Norm") Schillaci 10.29.07 at 8:47 am

The fact sheet is a good a technical and market overview .

I want to shed some light on Global Crossing facts on the IPv6 related to a few of the paper identified issues:

How far are we with IPv6 adoption?
• Cost
Global Crossing provides the same IPv4 services (address assignment, DNS and caching) for IPv6 customers at the same price.

• Features
IPv6 offers integrated security services ( such as IPSec tunneling) and are directly controlled by Global Crossing’s customers on IPv6 compatible devices. This allows customer ease of migration of moving infrastructure to IPv6 (servers, desktops, and network elements) on the customer’s time-line providing better Return On Investment (ROI)

• Incompatibility
Global Crossing IPv6 support on the same IPv4 IP ports. This configuration is called “Dual Stack” and leverages the potential in both Cost and Features noted above.

• Demand
Global Crossing has seen growing interest and demand especially from US government agencies.

We acknowledge the issues in IPv6 adoption and have created a solution that will provide a platform for painless migration. Please visit the trackback or this for more Global Crossing IPv6 facts.

Paul Levins 11.01.07 at 10:09 am


Yes – I’m sure you’ll find other elements of this factsheet that you may prefer were or weren’t in it. The whole point is to generate awareness and discussion. The fact is we have a mission to engage the public in participating in this issue. Second, my experience of helping to get this factsheet out (the author is actually Kieren McCarthy) is that there are almost as many opinions on the ‘facts’ about IPv6 as there are addresses in it ;-)

The fact is that engineers and technicians all have different views about what should be expressed and how.

Glad you read it and have an opinion.

Paul Levins

Dave 11.01.07 at 8:10 pm

I like the visual iwht the Blackberry but thats so techie. Maybe a box of cereal next time. The main thing here is getting the information out to everyone and getting the right information. Even if the info is general its important that the general public see that Icann has not dropped the ball on this issue (solution is ready). The more technical stuff can be addressed by the engineers but remember Icann is not just about some engineers sitting around discussing the internet.

征途私服 12.17.07 at 4:54 am

When will IPv6 to be true? We all konw it is better than IPv4

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