IPv6 Buzz

In this episode, Tom, Scott, and Ed talk about Ed’s recent IPv6 host OS training class and what listeners need to know about supporting IPv6 at the host OS level. Topics discussed include: * What a lab for IPv6 training should include * The most surprising thing students encounter when learning about IPv6 at the host OS level * Why it’s critical to learn and understand the different IPv6 address types * A key operating system difference in support for DHCPv6 * What RDNSS is and why it’s a critical feature for IPv6 in host operating systems Thanks for listening! Show Links: Comparison of IPv6 Support in Operating Systems – Wikipedia Practical IPv6 Windows Administrators – Amazon Rapidly Deploying IPv6 on AWS – A Cloud Guru Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

In this episode, Ed and Scott discuss overcoming the three major objections to IPv6 adoption with Dr. David Holder, a veteran IPv6 expert. Dr. Holder is a director at Erion LTD, where he develops IPv6 training. He’s also a frequent presenter at technical conferences such as UKNOF and the North American IPv6 Task Force Summit. Topics discussed include: * The three primary objections (or excuses!) Dr. Holder hears about adopting IPv6 * How to overcome those objections * How the business case for IPv6 differs from the technical case * The impact of CGN (Carrier-Grade NAT) on businesses * IPv6 security compared with IPv4 NAT * Why Provider Independent (PI) IPv6 space is appropriate for organizations that only have Provider Assigned (PA) IPv4 space today * How networks can enable IPv6 today with little cost or effort * Will “IPv6 re-education camps” be necessary? Show Links: Erion UKNOF42 – An Overview of IPv6 Security – YouTube Blockers to IPv6 Adoption – RIPE CGN a Driver for IPv6 Adoption – NAv6TF Meeting 2017 Your Hosts: * Ed Horley @ehorley * Scott Hogg @scotthogg

In this IPv6 Buzz podcast episode, Ed and Scott discuss address planning with Tim Rooney. Tim is the Director of Product Management and a 15-year veteran at DDI vendor BT Diamond IP. He’s also the author of several books including IP Address Management: Principles and Practice and IPv6 Deployment and Management, available through Wiley Press. Topics discussed include: * What stumps Tim’s customers when it comes to IPv6 and address planning * How  policies impact your IPv6 address plan (and vice versa) * How keeping track of networks instead of host addresses makes IPv6 address planning easier * What level of the IPv6 address plan is best correlated to existing IPv4 assignments? * Is it ever OK to encode an IPv4 address into an IPv6 address? Show Links: IPAM Worldwide – Tim Rooney’s Web site Tim Rooney’s blog Free IPv6 Tools IPv6 Deployment and Management – Wiley IP Address Management: Principles and Practice – Wiley Your Hosts: * Ed Horley @ehorley * Scott Hogg @scotthogg

In this episode of the IPv6 Buzz podcast, hosts Ed, Scott, and Tom discuss IPv6 and container networking with Shannon McFarland. Shannon is a 19-year Cisco veteran and Distinguished Engineer as well as a Cisco Press IPv6 author. Shannon is also highly active in the container and orchestration development community. Topics discussed include: * The state of support for IPv6 in the containers ecosystem * How container networking contrast with traditional networks * How IPv6 is configured in containers and container environments * How address management and IPAM is handled in container/orchestration environments * Why service-mesh solutions like Istio and Envoy are important (and where IPv6 fits) Thanks for listening! Show Links: Shannon McFarland’s Session at CiscoLive! US 2019 – Cisco Kubernetes Orchestration Heavy Networking 449: Web Application Firewall Fundamentals – Packet Pushers Istio Envoy Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

Ed, Scott, and Tom chat with Enno Rey, enterprise IT network and security expert and IPv6 evangelist. Enno shares key approaches for getting IPv6 into the enterprise, including looking for quick wins and being liberal and flexible as you deploy. He also shares insights and highlights from his recent presentation on enterprise IPv6 at RIPE 78. Enno is the founder of the consultancy ENRW (which also publishes outstanding IPv6 technical content and test results). He’s also a blogger and frequent conference presenter. Topic discussed include: * Three things that enterprises need to focus on to effectively adopt IPv6 * Is IPv6 easier or harder to adopt in 2019 as compared with 3-5 years ago? * Why 2019 might (or might not) be the year of IPv6-only in the enterprise * The cultural and psychological barriers to adopting IPv6 in the enterprise * How IPv6 security differs from IPv4 Thanks for listening! Show Links: Insinuator – Enno’s blog: ERNW – Enno’s Company: Troopers IT-Security Conference Is 2019 finally the Year for Linux on the Desktop? Or for v6-only Networks? – RIPE78 (PDF) Psychology of IPv6 – Veronika McKillop via YouTube Report on IPv6: Get ready for a mixed Internet world –  Brenden Kuerbis and Milton Mueller, Internet Governance Project Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

In this episode Ed, Scott, and Tom chat with Andrew Yourtchenko, a technical leader for the last 12 years at Cisco and an IPv6 innovator whose contributions include co-authoring the original Happy Eyeballs RFC (6555) as well as many other critical IPv6 RFCs. Topic discussed include: * What are MAP-T and MAP-E and what are they used for? What are the differences between them? * What is the likely future of Happy Eyeballs given current rates of IPv6 adoption on the Internet? * Andrew’s experience running the IPv6 wired and wireless network Cisco Live! events. * What’s holding us back from getting to IPv6-only? Thanks for listening! Sponsor: Netrounds Netrounds software performs active testing and monitoring to ensure your business-critical applications and services are running as expected. Get real-time insights for testing, troubleshooting, and SLA monitoring. Find out more at netrounds.com/packetpushers. Show Links: Cisco MAP Simulation Tool – Cisco Happy Eyeballs: Success with Dual-Stack Hosts – IETF Mapping of Address and Port with Encapsulation (MAP-E) – IETF Mapping of Address and Port using Translation (MAP-T) – IETF Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

The IPv6 Buzz podcast often focuses on learning IPv6. On today’s show we turn that idea around to talk with a renowned instructor about teaching it. Our guest is Rick Graziani, a CS/CIS instructor at Cabrillo College, adjunct faculty at University of California Santa Cruz, and a 20-year veteran of the Cisco Networking Academy curriculum engineering team. Rick is also the author of IPv6 Fundamentals: A Straightforward Approach to Understanding IPv6 on Cisco Press (and recently updated with a 2nd edition). We talk about the differences between teaching college students vs. training IT professionals, how IT and networking are taught in higher education today, and what Rick himself has learned from teaching. Other topics include: * Rick’s approach to teaching IPv6 in classrooms, books, and videos * Classroom or academic knowledge vs. practical experience * How the community college approach to teaching IPv6 differs from the university setting * Challenges his students face with learning IPv6  (as opposed to IPv4) Thanks for listening! Show Links: Cisco Networking Academy Rick’s Cabrillo College Page – Cabrillo.edu Rick Graziani on Twitter IPv6 Fundamentals: A Straightforward Approach to Understanding IPv6 – Cisco Press Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

At a recent Packet Pushers Virtual Design Clinic, IPv6 Buzz co-host Tom Coffeen gave a technical presentation on IPv6 Address Planning. Unfortunately, Tom ran out of time before he could get through his whole presentation. On today’s episode, Tom gets another crack at it. Guests Ethan Banks and Drew Conry-Murray join the show to ask follow-up questions and dig into address planning details including: * IPv6 nibble boundaries and why they’re so useful for subnetting * How to get over an IPv4 mindset when planning for v6 * Key differences between Provider Independent (PI) and Provider Assigned (PA) address space * Recommendations for v6 subnetting tools * How enterprise tools for DNS, DHCP, and IPAM are–and aren’t–ready for IPv6 Thanks for listening! Show Links: IPv6 Address Planning Survival Guide – YouTube IPv6 Address Planning: Designing an Address Plan for the Future – O’Reilly Media ipv6gen tool – GitHub IPv6 Buzz 014: We Answer Listener Questions – Packet Pushers Computer Networking Problems And Solutions – Russ White & Ethan Banks Your Hosts: Ed Horley @ehorley Tom Coffeen @ipv6tom

State and regional IPv6 task forces are non-profit organizations that advocate for IPv6 adoption by state governments and the private sector. They also educate engineers about the protocol to help spur v6 projects. In today’s episode Ed, Scott, and Tom chat with George Usi, the Co-Chair of the California IPv6 Task Force as well as a standards advocate and IPv6 evangelist. George is also President of SACTECH, which helps businesses enforce and maintain cyber compliance. Topic discussed include: * What is the California IPv6 task force and what does it (and other regional IPv6 task forces) do? * What has the impact of the task force been on overall IPv6 adoption? * What milestones has the task force achieved? * What objectives still need to be reached? * How does government policy and legislation affect IPv6 adoption? Thanks for listening! Show Links: California IPv6 Task Force North America IPv6 Task Force Rocky Mountain IPv6 Task Force California Department of Technology SACTECH Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

When it comes to security, there are a few critical differences between IPv4 and IPv6 that organizations need to be aware of, including host addressing and extension headers. We examine these differences, as well as other v6 security issues, with our guest Eric Vyncke, a Distinguished Engineer at Cisco and co-author of IPv6 Security (Cisco Press). Eric is the Co-Chair of the Belgium IPv6 Council as well as the Co-Chair of Operational Security Capabilities for IP Network Infrastructure (OPSEC) Working Group at the IETF (where he has authored many RFCs). Topic discussed include: * The general IPv6 security landscape * The differences and similarities between IPv4 and IPv6 security * The “latent threat” of IPv6 and what to do about it * Some innovative ways IPv6 is being used Thanks for listening! Show Links: IPv6 Security – Cisco Press IPv6 Deployment Aggregated Status – Vyncke.org What Color is Your IPv6 Address? – Vyncke.org Your Hosts: * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

In today’s IPv6 Buzz we answer listener questions about our favorite addressing protocol, including * I thought NAT was necessary for security? Isn’t my network less secure without NAT at the edge? * I tend to disable IPv6 whenever I can. Is that bad? * How feasible is it to scan an IPv6 network to discover devices? Thanks for listening (and keep the questions coming)! Show Links: RFC 4864: Local Network Protection for IPv6 – IETF RFC 6724: Default Address Selection for IPv6 – IETF 3 Ways to Ruin Your Future Network with IPv6 Unique Local Addresses – Infoblox Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

In today’s episode we make sense of IPv6 protocol analysis with expert teacher and troubleshooter Denise Fishburne. Denise is an 18-year veteran of the Cisco Customer Proof of Concept lab, where she’s an engineer and team lead. She’s also a Cisco solutions architect, CCIE #2639, CCDE #2009::0014, a CiscoPress technical reviewer, and is in the CiscoLive! Distinguished Speaker Hall of Fame. Topics include: * The importance of using a protocol analyzer and packet captures to better understand IPv6 * Why being able to configure IPv6 routing protocols won’t necessarily prepare you for troubleshooting IPv6 * The psychological barrier of a /64 as a LAN subnet (and the general fear of learning IPv6) * Why IoT requires an IPv6 security practice * Network traffic security analytics Thanks for listening! Show Links: Understanding IPv6: The Journey Begins (Part 1 of 7) – Networking With FISH Denise on Twitter Your Hosts: * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

In the latest episode of IPv6 Buzz we examine IPv6 deployment among cable providers. We’ll discuss industry trends, dual-stack deployments, and how the cable industry is working to transition IPv4 out of the providers’ access and distribution networks. Topics include: * The status of IPv6 deployment among cable providers * Why an IPv6-only network with IPv4 running as a service (IPv4aaS) is desirable for cable provider networks * What prevents some cable providers from adopting IPv6 * The DOCSIS standard and why it’s important for IPv6 * Why a /56 IPv6 prefix is likely the best minimum size for home networks Our guest is Dan Torbet, Director of Systems Engineering at ARRIS. He’s worked in the cable/MSO Internet industry for over 25 years. Dan was an active participant in industry efforts around DOCSIS 3.0 and Modular CMTS specifications and has been a long time advocate of IPv6 adoption including as a very active Rocky Mountain IPv6 Task Force member and volunteer. Thanks for listening! Show Links: Rocky Mountain IPv6 Task Force Arris.com CableLabs Specifications Library World IPv6 Launch Measurements Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

In this episode we examine the influence of the Internet Engineering Task Force (IETF) in today’s technology landscape, particularly around the Internet Protocol (IP). Our guest Fred Baker is chair emeritus of the IETF. As a 30-year veteran of the organization, his tenure has included authorship of more than 50 RFCs (many of them around IPv6) as well as serving as chair of the IPv6 Operations Working Group. Topics include: * Is the IETF still important? * Emerging technologies such as segment routing * Why the Internet Protocol (IPv4 and IPv6) emerged as the dominant routed protocol in the early 1990s (and why it was necessary to develop IPv6 in the first place) * How one enterprise would have had to spend $25 million for IPv4 versus $2,100 for IPv6 * Which IETF IPv6 Working Group should enterprise network operators pay attention to Thanks for listening! Show Links: IETF.org Fred Baker – Wikipedia Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg

What’s in store for IPv6 in 2019? What happened–and didn’t happen–in 2018? Ed, Scott, and Tom analyze the pace of IPv6 growth around the world and offer forecasts for 2019. They also discuss what’s coming for enterprises regarding v6 in 2019. Topics include: * Public cloud services and IPv6 adoption * Overall Internet traffic growth of IPv6 in 2018 (and going forward) * Worldwide trends in IPv6 growth (including India, Brazil, and China) * What enterprises will need to focus on with IPv6 in 2019 (and beyond) * IoT trends Thanks for listening! Show Links: World IPv6 Launch Measurements – World IPv6 Launch Google IPv6 Statistics – Google IPv6 Adoption Visualization – Akamai Your Hosts: * Ed Horley @ehorley * Tom Coffeen @ipv6tom * Scott Hogg @scotthogg