Windows 10 now runs in SLAAC networks

windows-10-logoMicrosoft released the Creator Update last month (11 April 2017) with lots of interesting stuff. But the most interesting for IPv6 is support for the RDNSS field in the RA (Router Advertisement). The RDNSS field is the one that carries DNS server information in the RA.

In order to run an IPv6-only SLAAC-based network the host must need 2 things: an address, and the address of a DNS server. Without DNS, IPv4 or IPv6 is pretty useless.

The fact that MS is now supporting SLAAC-only networks is a huge shift from their previous DHCPv6 only stance. Why is this important? Because there are use-cases for SLAAC-only networks, and now not only can you use your Android devices (which don’t do DHCPv6) but also your Windows 10 machines as well.

Windows continues to dominate the PC market with about 85%. Now with Windows 10 Creator Update, there is no excuse to not deploy IPv6 in your network now.

IPv6 knowledge base available

DREN has the some of the most extensive enterprise-to-end-user experience around —

John Baird (CTR)
Tue, May 31, 2011 at 6:56 AM

Internet Protocol version 4 (IPv4) is nearly thirty years old. This
critical part of the Internet’s infrastructure is approaching its end of
life, as the last five unallocated IPv4 address blocks were delegated to
Regional Internet Registries on February 3, 2011. This won’t have an
immediate impact on the way people use the Internet, but both dwindling
IPv4 address availability and the requirement to start using IPv6 will
impact the way that Federal Agencies and commercial businesses provide
Internet services.

The Defense Research and Engineering Network (DREN) started using IPv6
in 2003. DREN has provided it users with servers, services, and client
applications using IPv6 since then. As the Internet transition from IPv4
to IPv6 plays out, DREN will continue providing a secure,
high-performance infrastructure using both IPv4 and IPv6.

DREN also provides lessons-learned from its years of experience with
IPv6 on an extensive knowledge base. This is publicly available on the
DoD’s High Performance Computing Modernization Program web site
1. Click on Networking and Security in the left hand column
2. Click on IPv6 Information in the right hand column
3. Click on IPv6 knowledge base at the bottom of the article.

Or, use this direct link:

For more information about DREN and IPv6, please contact: John M Baird, HPCMP IPv6 Implementation Manager, (703) 402-9638

The End Of Guessing

It has been a continual surprise to me that, with so many things to do, people who work in IPv6 advocacy have spent so much time arguing about the accuracy of IPv4 depletion predictions, and asking why competing estimates didn’t match.

Since two weeks ago, or so, the guessing stopped, and yesterday, a ceremony/press conference was held in Miami, a joint event among ICANN, NRO, AfriNIC, APNIC, ARIN, LACNIC, RIPE-NCC, IANA, and the Internet Society.

So far, ICANN’s summary page is the most complete that I’ve seen:

What happened is this: IANA, the dispenser of all IP addresses, handed out the last of their IPv4 addresses and will dispense no more.

What does this mean? It means that the addresses in the hands of the Regional Internet Registries will be the last that they dispense to end-users, and that alternate means of acquiring addresses will be sought.  People who have addresses will do deals with people who need addresses.

I was tempted to scoff when the assertion was made by NRO that address selling will still occur by the guidelines currently used by RIRs, because I had sort of pictured the post-depletion address market as wild west black market kind of thing. But when you think it through, would you give want to give somebody money for addresses which would not be described as belonging to you in the registry? Probably not.  At the same time, address rentals will become common too, and they may not need to heed RIR procedures. A brave new world, hopefully not a Huxley-esque.

I wax:

“Ending is better than mending. The more stitches, the less riches.”
– Aldous Huxley, Brave New World, Ch. 3

or, if you prefer:

“Cleanliness is next to fordliness.”
– Aldous Huxley, Brave New World, Ch. 7