Category Archives: NAv6TF

On a recent flight, my interest was piqued when the flight attended announced on the PA that there would be free Wifi on the entire flight. Naturally, I took out my phone and connected to the in-flight Wifi, as almost everyone else on the plane did. But I suspect that others on the plane didn’t … Continue reading “IPv6 Takes Flight” Continue reading →

Many of us in the IPv6 community have been eagerly waiting for the Google IPv6 Statistics page to show over 50% utilization. We are getting close, topping over 49% on 21 June 2025. Now there are many making predictions as to when the Google Statistic will finally break the 50% mark. Of course, breaking 50% … Continue reading “IPv6 Mondays” Continue reading →

IPv6 Unique Local Addresses (ULA) have been problematic since 2012 when RFC 6724 was published. The problem is that a ULA destination address is prioritized lower than an IPv4 address, including RFC 1918 private addresses. If you are implementing IPv6, and you set up a server with a IPv6 ULA and an IPv4 address (in … Continue reading “ULA Precedence Improvements” Continue reading →

For those who have been following my articles, they will know I am a fan of RIPng routing protocol for IPv6 in small networks. It requires little to no configuration, turn it on, and it just works. Recently, I was exchanging emails with the bird package maintainer for Openwrt, and he suggested I give Babel … Continue reading “Babel Redux: Easy to use as RIPng, but with wireless support” Continue reading →

I have been an IPv6 Advocate since the early days of IPv6 support by BayNetworks back in 1998. And I know as much as anyone else, that 2128 is a really big number*. So it seems inconceivable that one could run out of IPv6 addresses, but I managed to do just that. Let me explain. … Continue reading “I ran out of IPv6 Addresses!” Continue reading →

Since 2004, there has a been a Documentation Prefix for IPv6 (RFC 3849) or 2001:db8::/32. And all though this seems like enough space to allocate for Local Area Networks (LANs), even larger ones, it wasn’t good for creating documentation for Autonomous System (AS) to AS connections using Border Gateway Protocol (BGP4). Each AS would have … Continue reading “The brand New IPv6 Documentation Addresses are here!” Continue reading →

I use a laptop, like most people. I also tend to put my laptop to sleep several times a day, sometimes for hours. In an IPv6 environment, putting the laptop asleep will break all the ssh (and X11 forwarded apps) sessions that I have running. I also connect my laptop to several different Wifi Networks … Continue reading “SSH + Stable SLAAC Address = 6ssh” Continue reading →

I was recently giving a talk on Container Networking, which included LXD/Incus (Incus is the community fork of LXD), Docker and Podman. One can think of Linux Containers as light weight virtual machines, however, they share the same Linux kernel as the host. Docker of course, is the most popular container framework, but there are … Continue reading “Container Networking & the IPv6 Advantage” Continue reading →

With world-wide IPv6 usage, as measured by Google, at around 45%, questions arise, how do we push it higher? What is left to be done? Education is the Key Technological evolution occurs in different places and times. Formal training, and On the Job Training (OJT) are just some of the ways technological learning occurs. Because … Continue reading “IPv6 Adoption starts with Education” Continue reading →

Hau’oli Makahiki Hou! (Happy New Year) With IPv6 utilization between 40-45%, it may be time to consider moving from dual-stack to IPv6-only. At least, set up a test network to better understand what IPv6-only looks like, and how it can make your life easier as a network/system administrator. By running IPv6-only you gain some quick … Continue reading “IPv6 PREF64” Continue reading →