Tag Archives: IPv6

Ready or not here we IPv6!

In response to questions from the audience, Time Warner Cable and Comcast representatives talked about what the new normal means to them. As part of World IPv6 Launch, they’ve committed to have one percent of their customers using IPv6 by June 6. But as 30 percent of their consumers use Windows XP (which doesn’t have IPv6 enabled out of the box) and 70 percent have a non-IPv6-capable home router, they need to enable IPv6 on a rather significant number of subscriber connections to hit that seemingly unambitious one percent. New Comcast and Time Warner Cable users—and also many existing users—will gain IPv6 connectivity over the next three months, and more after that. However, different cities will get it at different times.

I think I’ll call up Comcast and see if I can be an early adopter.

And if they’ll cut my bill in half.

via With World IPv6 Launch, IPv6 on by default will be the new normal.

iSCSI storage target to ESXi over IPv6

This will be useful to know how to do:

Ethernet-based storage networks, such as those providing iSCSI or NFS disk resources, may be the last frontier for the IPv4 to IPv6 transition. Should these networks need to be updated, now is the time to verify all of the pieces and parts are supported and work as expected.

In this gallery, I’ll go through configuring an ESXi host to an iSCSI LUN over IPv6. Be sure to reference VMware KB 1010812 for more information on this configuration.

via Verify IPv4 to IPv6 transition | TechRepublic.

IPv6 Structure Will Require New Security Policies and Tactics

Two things to think about with the IPv6 transition: email spam and firewall / security policies:

Blacklists and greylists are another area of concern, as there is only one maintained list at this time. Until reputation systems and blacklists become more common on IPv6, it will be difficult to filter out spam messages. Even so, the way reputation systems and blacklists are generated may need to be rethought, according to Li. An IPv6 address has two parts, the prefix assigned by the individual network, and the access assignment value dynamically generated by each device. As a result, a device can have its IPv6 address refreshed as often as every 24 to 48 hours, Li said. It’s not the same as just blocking out a specific set of numbers, he said.


Organizations have to test the firewall to ensure the new policies handle IPv6 correctly. Internet service providers can’t treat IPv6 like it’s the same as IPv4 with just more addresses, Asaf Greiner, vice-president of Commtouch, told eWEEK. IPv6 offers hierarchical addressing, where the addresses can be assigned to a single device, as well as to multiple devices within a group, he said.

via IPv6 Structure Will Require New Security Policies and Tactics – Security – News & Reviews – eWeek.com.

IPv4 Address Depletion Won’t Cause Stampede to IPv6

Good points:

But right now, there’s no reason to rush madly into IPv6. For one thing, there’s virtually no place on the public Internet that is using IPv6, so you will have few choices of destinations. One estimate I saw recently puts the number of IPv6 sites on the global Internet as less than two-tenths of a percent. While there are a few Websites that do allow connectivity using IPv6, those also allow IPv4 connections.


A move to IPv6 will free up IPv4 addresses for end users, for devices that can’t use IPv6 and for network infrastructure that isn’t or can’t be enabled for IPv6. Eventually, portions of the public Internet will start supporting IPv6, but it’s not going to happen overnight. And even when it does start to happen, the change won’t be all at once.

via IPv4 Address Depletion Won’t Cause Stampede to IPv6 – IT Infrastructure – News & Reviews – eWeek.com.

Tech giants to enable IPv6 on “World IPv6 Day” in June

It’s a one-day-only event, but it’s a start.

The Internet Society, an organization dedicated to the good of the Internet, is organizing “World IPv6 Day” on June 8 of this year. Web giants Facebook, Yahoo, and Google, with a combined one billion visitors per day, are participating by enabling IPv6 for their main services that day. Content distributors Limelight and Akamai are also joining the party by enabling their customers to participate. But unlike during the IETF IPv6 experiment, IPv4 won’t be turned off.

via Tech giants to enable IPv6 on “World IPv6 Day” in June.

See also:

Arbor Networks surveyed IPv6 adoption in the summer and found less than a tenth of a percent of all traffic used IPv6, “almost below the threshold of what we could measure,” according to Craig Labovitz, the chief scientist at Arbor Networks.

via  IPv4 Address Exhaustion Not Instant Cause for Concern with IPv6 in Wings – IT Infrastructure – News & Reviews – eWeek.com.

Global pool of IPv4 addresses set to run dry in weeks

It could very well be worth making sure you’re IPv6 compatible… just in case The Switch happens sooner than later.

Yesterday, the Internet Assigned Numbers Authority (IANA, part of ICANN), allocated two blocks of 16.8 million IPv4 addresses to the RIPE NCC and another two blocks to ARIN. The RIPE NCC and ARIN are the Regional Internet Registries that give out IP addresses in greater Europe and North America, respectively. This brings the global pool of still available “/8” address blocks that IANA maintains from 11 down to 7.

via Global pool of IPv4 addresses set to run dry in weeks.

There is no Plan B: why the IPv4-to-IPv6 transition will be ugly

Iljitsch van Beijnum has written an excellent article on the upcoming doom that will be the IPv4 to v6 transition.

Legacy problems will be huge – there are home users running every ancient OS ever available out there.

There is no plan B. Despite the long list of the issues with IPv6 and its deployment, there are no alternatives. It took us the better part of two decades to get this far with IPv6, and there’s no way we can come up with, implement, and deploy an alternative before the lack of IPv4 addresses becomes a serious problem.

via There is no Plan B: why the IPv4-to-IPv6 transition will be ugly.