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Description
IPv6 Buzz is for network engineers and infrastructure pros adopting IPv6 or who want to learn more about the protocol. Hosts Ed Horley, Tom Coffeen, and Nick Buraglio demystify IPv6’s intricacies and deliver practical insights in a conversational style that explain the how and why of implementation. They’ve literally written the books about IPv6 and routinely consult on public, private, and federal deployments. IPv6 Buzz is an essential podcast for building your knowledge, confidence, and expertise in working in this increasingly important domain.
199 Episodes
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1Ed, Nick, and Tom discuss the need for Network Address Translation v6 to v6 (NAT66). While Network Prefix Translation (NPTv6) exists, its limitations make it insufficient for real-world business needs. They also highlight that without a standardized NAT66, the market is forcing vendors to implement their own, hindering widespread IPv6 adoption. Episode Links: IPv6-to-IPv6 Network... Read more »
Are you struggling to get IPv6 working, whether in a lab or even a pilot deployment? Ed, Nick, and Tom walk through the essentials of IPv6 troubleshooting, revealing the non-negotiable differences between IPv4 and IPv6 that can trip up even experienced network engineers. They break down why blocking all ICMP, like in v4, will instantly... Read more »
Thinking of setting up an IPv6 lab this year? Our hosts dive into a major update on building and testing modern IPv6 networks, focusing on the game-changing “IPv6-mostly” architecture. They break down the essential components you need to get this working, including DHCP Option 108 and the nitty gritty of client support. In this episode,... Read more »
Will Microsoft’s CLAT bring widespread adoption rates for IPv6? Will there be significant advancements in corporate and cloud adoption as well? Will this finally be the year we see the fix for the RFC 6724? Ed Horley, Tom Coffeen, and Nick Buraglio make their predictions for the new year in the first IPv6 Buzz of... Read more »
Kubernetes is a popular container orchestration platform. Today’s IPv6 Buzz episode explores the benefits of using IPv6 in Kubernetes, and how Kubernetes uses IP addresses in both the control plane and data plane.We also address why the adoption rate is estimated to be so low, from default configurations to issues with non-IPv6-aware applications inside containers.... Read more »
The newly published RFC 9898 is the discussion of today’s podcast. The IPv6 Buzz crew explore the complexities of neighbor discovery and review solutions for both operators and architects. They share how this RFC serves as a single, detailed resource to improve your understanding of neighbor discovery and to reduce the potential attack surface in... Read more »
What does it take for an entire country to adopt IPv6? Our guest today is Tenanoia (Noia) Simona, CEO of Tuvalu Telecommunications Corporation, the country’s sole telecommunications provider. She’s here to walk us through the difficulties of connecting the many islands of Tuvalu and their journey to achieving one of the world’s highest IPv6 adoption... Read more »
Today the IPv6 Buzz crew provides updates on the latest in IPv6 standards, RFCs, and best practices. They break down the recent discussions around RFC 6052, explore the options for RFC 8215, and share Nick’s spin on the now defunct testipv6.com site. Episode Links: RFC 6052 RFC 8215 RFC 6598 IPv6.army
RFC 9872 makes recommendations for NAT64 prefix discovery for hosts supporting v4-to-v6 translation. Co-host Nick Buralgio is a co-author of this RFC, so we’re taking the opportunity to talk about it in detail. We discuss the problems RFC 9872 is addressing and why a new RFC was needed for operational guidance, not necessarily defining a... Read more »
Sometimes weirdness occurs within DNS if you’re on an IPv4 network and you connect to a dual-stack or v6-only VPN. Maybe the browser doesn’t connect, but you can still send pings, or vice versa. Is the OS getting confused about which stack and which order of interfaces to request services? Is the weird behavior being... Read more »
We’re diving into another IPv6 Basics today with the topic of dual-stack, which means running the IPv4 and IPv6 protocol stacks simultaneously. We get many questions about the implications of running dual-stack, and in this episode we’ll provide answers. We start by getting a little finicky about the definition of dual-stack, and then talk about... Read more »
Today we talk about measuring IPv6 and IPv6 statistics. We talk about why it’s useful to measure IPv6, how to track v6 deployment initiatives, and tools to help with your measurements. Episode Links: Google IPv6 – Google IPv6 Global Statistics Dashboard IPv6 Enabled – Hexabuild Episode Transcript: This episode was transcribed by AI and lightly... Read more »
Transitioning from IPv4 to IPv6, or at least IPv6-mostly, is no easy task. Today’s show provides some education and advice about IPv6 transition mechanisms. We cover options such as NAT64, DNS64, PREF64, and more, as well as use cases. Also, if your technology vendors aren’t offering some of these mechanisms, ask for them – you’re... Read more »
You’ve sent in questions and on today’s IPv6 Buzz episode Ed, Nick, and Tom answer them. Questions include using DHCPv6 versus SLAAC in a home network, IPv6 and email services, a NAT66 recap, and more. Stay tuned for full episodes coming up that cover Path MTU discovery and IPv6 and containers. Episode Links: Google IPv6... Read more »
We’re continuing our IPv6 Basics series discussing on this episode deployment. We’ll help you sort out why you should deploy IPv6, things to consider before starting a deployment, and what approach you should take such as “inside out” vs. “outside in” and when you should deploy IPv6. Lastly we explain why you should seek out... Read more »
Let’s talk about common misconceptions regarding DNS and IPv6. We’ve heard these often enough that we felt we should talk through each one. We cover issues including what kind of DNS record types can be returned via IPv6 (and IPv4, too), more details on what really goes on with Happy Eyeballs, and combining A/AAAA records... Read more »
Today’s show is in memory of Fred Baker, who passed away on June 18, 2025. Fred was a pivotal figure in the IPv6 community. He was the long-time chair of the v6ops working group, and had a distinguished career at Cisco as a Technical Fellow. To honor Fred and his contributions, we’re sharing our interview... Read more »
The Hexabuild team is providing a new community resource, an IPv6 compatibility checker, for those trying to figure out IPv6 network hardware and software compatibility. It’s currently in an alpha version. We talk about what inspired it, what it does, and possible future updates. We also want to get your feedback on whether this is... Read more »
Let’s chat about point-to-point links. On today’s episode we cover what should and shouldn’t be done, and discuss why following RFC’s doesn’t always get you to the right place. We dig into questions including: Don’t we just use link-local addresses for point-to-points? Shouldn’t we assign a /127, just like we do a /31 in IPv4?... Read more »
Our IPv6 Basics series continues with link-local addresses. Link-local addresses are unicast addresses used for addressing on a single link. The intent of link-local addresses is to let devices that may not have a router or global unicast address allocation mechanism still be able to communicate on a network segment. On today’s show we dig... Read more »
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