IPv6 Buzz

The move from IPv4 to IPv6 is not straightforward. In a world where use cases for both protocols exist, there needs to be some sort of transition. Dual stack is one option but “IPv6 mostly” is another. On today’s show, guest Ondřej Caletka from RIPE NCC explores transitioning to an IPv6-centric network while retaining IPv4... Read more »

Nathan Sherrard shares insights from his Cisco Live US sessions on today’s show. We discuss the current state of IPv6 adoption, adoption challenges, and the strategic importance of transitioning to IPv6. Nathan rounds out the show with IPv6 topics worth keeping an eye on. Episode Guest: Nathan Sherrard, Sales Engineer, Cisco Nathan Sherrard is a... Read more »

RFC 9099 addresses security considerations for operating IPv6 networks, including issues such as address allocation and architecture, security considerations for DHCPv6 and DNS64, and more. Two of the RFC’s co-authors, Merike Kaeo and Eric Vyncke, join the IPv6 Buzz team to talk about the motivations for and challenges of creating RFC 9099. Episode Guests: Merike... Read more »

What are the operational considerations and differences between DHCP and DHCPv6?  In today’s episode we explore the implications for network management, security, and operational models. We also discuss the challenges of DHCPv6 failover, high availability, complex device tracking and identity management in various environments. Episode Links:  Scott’s Infoblox IPv6 CoE blog post  Introducing DHCPv6 Prefix... Read more »

Imagine a world with no broadcast storms, basically no DAD issues, not even ARP and reverse ARP. That is the world of IPv6 neighbor discovery. In today’s episode, we teach you the simplicity of IPv6 neighbor discovery: just native Layer 3 addresses, ICMPv6, and multicast. If you’ve ever been annoyed at a guy hopping on... Read more »

If you don’t blame “destination unreachable” messages on DNS servers, are you even a real network engineer? All joking aside, Johannes Weber joins the show today to teach us how to use ICMPv6 to troubleshoot network issues, pinpointing if the problem is within your network or outside of it. He walks us through identifying possible... Read more »

If you’re an Active Directory administrator or part of an enterprise network team working with one, this episode is for you. Ed literally wrote the book “Practical IPv6 for Windows Administrators” so Scott has fun interviewing him as today’s guest. Ed goes over how to diagram out your IPv6 deployment, including address allocation and making... Read more »

Alexandra Huides didn’t like IPv6 on her first encounter with it. Today she is globally renowned for spreading the IPv6 gospel and helping AWS customers adopt it. Alexandra joins the show today to share what changed her mind about IPv6 and what she sees change the minds of network engineers every day: Greater client traffic... Read more »

As part of our ongoing series on IPv6 basics, today we cover the differences you should be aware of between ICMPv4 and ICMPv6. Internet Control Message Protocol (ICMP) is the protocol that lets you test reachability: Pings, echoes, TCP connections, etc. We explain what you need to know and why you need to know it,... Read more »

Rob Sears, Chair of the U.S. Federal Government's IPv6 Task Force, shares his expert insights on the vital migration to IPv6. He discusses the formation and goals of the task force, emphasizing the importance of inter-agency collaboration. Rob highlights the unique challenges faced by smaller agencies, proposing innovative strategies for overcoming legacy system hurdles. He also examines global IPv6 adoption rates, noting how countries like China and Vietnam may be outpacing the U.S., and stresses the need for U.S. government address allocations to drive innovation.