- ipv6-wg - mailman.ripe.net

Happy Eyeballs in Thunderbird SMTP submission flow
by Max Emig 03 Aug '26

03 Aug '26

Hey all, I am about to contribute a happy eyeballs implementations for SMTP into Thunderbird and possibly fix the other gaps as well. Currently, if I did not misread it seems to be a particularly bad offender. Do you have any Happy Eyeballs implementation in FOSS you particularly like for some inspiration? Cheers Max

1 0

Call for presentations RIPE93 IPv6 WG
by Christian Seitz 22 Jul '26

22 Jul '26

Dear IPv6 WG mailing list members, RIPE 93 will be held in Sofia, Bulgaria from 26-30 October 2026, as well as online. For any form of participation you can register at https://ripe93.ripe.net/register/ Please keep in mind that the early bird rate is only available until the end of July! The IPv6 Working Group session is scheduled for Thursday 29 October from 9:00-10:30 (UTC+2). We are looking for presentations! Since a couple of meetings we are using Pretalx for both Plenary and WG presentations. If you have something interesting for the IPv6 WG (or also other WGs or the Plenary) please submit your presentations here: https://ripe93.ripe.net/present/call-for-presentations/ You will need a RIPE NCC Access account and enable two-factor authentication in order to access the submission system. If you don't have a RIPE NCC Access account yet, please create it here: https://access.ripe.net/registration If you like to discuss your presentation with us first, please email ipv6-wg chair(a)ripe.net. The deadlines mentioned on the CfP page above are for the Plenary. For the WG session we also accept submissions after the deadlines, but for better planning we prefer to have your submission as soon as possible. On 25th of September we will start to decide about the agenda and see, if we still have open slots. Once we have decided on the agenda, we'll contact the presenters. We expect to have a draft of the presentations about two weeks before the meeting and the final slides at least two days before our session. On behalf of the IPv6 WG co-chairs, Wolfgang, Ray and Chris

1 0

New on RIPE Labs: A Farewell to ARPs - IPv4 Service on IPv6-Only Networks
by Alun Davies 14 Jul '26

14 Jul '26

Dear colleagues, This new article from Remco van Mook explores an IETF proposal that would allow IPv4 to operate over IPv6-only infrastructure without ARP, IPv4 subnets, tunnelling or translation: https://labs.ripe.net/author/remco-van-mook/a-farewell-to-arps-ipv4-service… Comments and feedback are very welcome as always! Kind regards, Alun Davies RIPE Labs Editor RIPE NCC

4 10

RIPE 92 IPv6 WG Draft Minutes
by Anastasiya Pak 08 Jun '26

08 Jun '26

Dear WG chairs, Please, find attached the draft minutes from the IPv6 WG session at RIPE 92. Please let me know if any corrections or adjustments are needed. -- Kind regards, Anastasiya Pak Senior Marketing & Communications Officer RIPE NCC

1 1

IPv6 resource list
by Jens Link 19 May '26

19 May '26

Hi, some time ago I created a list of IPv6 resoureces. I just updated the list but I guess some people here will have more items to add. https://gitlab.com/jenslink/ipv6-resources/ Have nice RIPE meeting Jens

1 0

Actual deployment of RFC7050/RFC8880 "experiment"
by jordi.palet＠consulintel.es 18 Apr '26

18 Apr '26

Some folks in the IPv6 WG may not be in IETF v6ops, and they could also contribute to this “measurement experiment”. Regards, Jordi @jordipalet > El 13 abr 2026, a las 11:52, jordi.palet(a)consulintel.es <jordi.palet=40consulintel.es(a)dmarc.ietf.org> escribió: > > Hi all, > > I’m wondering how much actual deployment of RFC7050/8880 is there and that means *having ipv4only.arpa zone* available in the resolvers of the operators. > > With this small experiment, we can try to measure what is the situation, at last from the mobile operators being used by the participants. > > Note that this experiment is only possible if your mobile operator is actually using 464XLAT (or even only NAT64, don’t think many do). > > I got a confirmation from one big network operator about it, but I’m not sure that is the same in all the other deployments in mobile networks, so I wonder if each participant can provide their own experience or you already know for sure what is the actual deployment situation in your operator. > > If you don’t know from first hand how your mobile operator is doing, or even knowing it, you want to verify, please use the following steps: > > 1) Connect a computer with has dig installed to the mobile network via tethering (the mobile device should be using the mobile network, of course). > > 2) Ensure that the DNS server(s) configuration is the default provided by the mobile operator (usually the mobile phones don’t allow changing it, but you may have changed it in the computer, so you need, for the test, to return it to DHCP, which means the mobile phone will act as a DNS-proxy by means of the CLAT. > > 3) Run and capture the results of: > dig AAAA +cd ipv4only.arpa > > 4) If you don’t have dig, you can use nslookup (however it doesn’t allow clearing the CD flag, see explanation below): > nslookup -q=AAAA ipv4only.arpa > > There may be other ways to do this test, even directly from the mobile phone, but I found that the dnsutils available for mobiles don’t allow setting the CD (checking disabled) bit to 0. In that case, depending on the DNS64 server configuration may not perform DNS64 synthesis, so will not be able to reveal the actual Pref64. If the ipv4only.arpa is correctly configured, it will also reveal the correct Pref64 even failing to set to 0 the CD. > > You can actually run the test with some dnsutil in the phone, then in the computer, so we can confirm differences. > > Please, to avoid extra noise in the list, reply directly to me (jordi.palet(a)theipv6company.com <mailto:jordi.palet@theipv6company.com>), and I will make a summary to the list in a few days. > > You need to confirm to me the mobile operator and country, if you’re using Android or iOS, what version and details about how you did the test, in addition to to the dig or nslookup results. Better if you are able to do the test both, in the mobile and the computer. > > Tks a lot in advance ! > > Regards, > Jordi > > @jordipalet > > ********************************************** IPv4 is over Are you ready for the new Internet ? http://www.theipv6company.com The IPv6 Company This electronic message contains information which may be privileged or confidential. The information is intended to be for the exclusive use of the individual(s) named above and further non-explicilty authorized disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited and will be considered a criminal offense. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information, even if partially, including attached files, is strictly prohibited, will be considered a criminal offense, so you must reply to the original sender to inform about this communication and delete it.

1 0

RIPE92 update on IPv6 routing loops
by Maynard Koch 12 Mar '26

12 Mar '26

Dear Raymond, Christian, and Wolfgang, I hope you are doing well! At RIPE 90, I had the opportunity to talk about routing loops on the IPv6 Internet during your WG session. As the deployment of routing loops (and the router bug) is still high and hasn't changed much within the past year, I would like to give a small update talk on these routing loops to raise awareness and help to educate so this problem is hopefully solved in the future! Do you think this would be possible? I just submitted the proposal at the Pretalx system with abstract and slides for your WG session. Looking forward to your reply! Best, Maynard -- Maynard Koch TU Dresden, Chair of Distributed and Networked Systems https://tu-dresden.de/cs/netd/about/team/koch

2 1

Call for presentations RIPE92 IPv6 WG
by Raymond Jetten 20 Feb '26

20 Feb '26

Dear IPv6 WG mailing list members, RIPE 92 will be held in Edinburgh, Scotland from 18 - 22 May 2026, as well as online. For any form of participation you can register at https://https://ripe92.ripe.net/register/<https://https:/ripe92.ripe.net/register/> Please keep in mind that the early bird rate is only available yet today.. The IPv6 Working Group session is scheduled for Thursday 21 May from 9:00 - 10:30 (UTC+1). We are looking for presentations! In the last years only sessions for the Plenary could be registered via the website and the WG presentations needed to be sent via email to the WG chairs. This has changed for the next meeting and we are now using Pretalx for all presentations! Please submit your presentations here: https://ripe92.ripe.net/present/call-for-presentations/ You will need a RIPE NCC Access account and enable two-factor authentication in order to access the submission system. If you don't have a RIPE NCC Access account yet, please create it here: https://access.ripe.net/registration If you like to discuss your presentation with us first, please email ipv6-wg-chair(a)ripe.net<mailto:ipv6-wg-chair@ripe.net>. The deadlines mentioned on the CfP page above are for the Plenary. For the WG session we also accept submissions after the deadlines, but for better planning we prefer to have your submission as soon as possible. On 18th of April we will start to decide about the agenda and see, if we still have open slots. Once we have decided on the agenda, we'll contact the presenters. We expect to have a draft of the presentations about two weeks before the meeting and the final slides at least two days before our session. On behalf of the IPv6 WG co-chairs, Chris, Wolfgang and Ray For Internal Use Only

1 0

New IPv6 Advanced e-learning course in the RIPE NCC Academy
by Alvaro Vives Martinez 11 Feb '26

11 Feb '26

Dear colleagues, We have launched a new IPv6 Advanced e-learning course in the RIPE NCC Academy. Through this course, participants can learn how to design an IPv6 infrastructure in order to deploy IPv6 across various network types and architectures. More specifically, participants will learn how to implement an IPv6 addressing plan, deploy IPv6 in backbone, enterprise, and data centre and cloud networks, identify which IPv6 transition mechanism to implement for various deployment scenarios, and troubleshoot and monitor IPv6 networks. Participants can enrol in the course for free at: https://academy.ripe.net/ipv6-advanced We would greatly appreciate if you could share this link with anyone in your networks who would benefit from this course. Regards, Alvaro Vives Manager Technical Learning and Development RIPE NCC

1 0

Re: Launch of The Internet Ecosystem Book
by Peter Anderson 09 Feb '26

09 Feb '26

*(Apologies for cross-posting)* As a researcher, I have never come across a highly intensive and inclusive book like "The Internet Ecosystem". The book englobes the whole Internet Ecosystem with the correct information compared to misleading information from blogs/wikipedia on the Internet. This book was reviewed by Vint Cerf. I have just completed the reading, I will highly recommend it and it is nice to have a copy to keep for reference. Professor Peter Anderson Head of Research ------------------------------ *From:* Nikesh B. Simmandree <nikeshbs(a)outlook.com> *Sent:* Monday, August 18, 2025 1:35 PM *To:* alac-announce(a)icann.org <alac-announce(a)icann.org>; alac(a)icann.org < alac(a)icann.org>; at-large(a)icann.org <at-large(a)icann.org>; afri-discuss(a)icann.org <afri-discuss(a)icann.org> *Subject:* Launch of The Internet Ecosystem Book Dear Community, I am thrilled to announce the launch of my book, *The Internet Ecosystem* — a comprehensive exploration of the history, architecture, governance, and future of the Internet. This book distills decades of technological evolution — from ARPANET and packet switching, to AI, Web3, quantum networks, and beyond — into a clear, engaging narrative accessible to both technical and non-technical readers *What the Book Covers* - *The Past:* How Cold War research, ARPANET, and packet switching gave birth to the Internet we know today. - *The Present:* The intricate roles of ISPs, backbone providers, cloud infrastructure, AI, cybersecurity, and global governance shaping our daily online experiences. - *The Future:* Insights into 5G/6G, blockchain, immersive technologies, quantum security, and the Internet in 2050. With *49 detailed chapters*, the book provides a definitive yet approachable reference for students, professionals, policymakers, and curious readers alike. My mission with *The Internet Ecosystem* is to make the Internet’s complexity understandable — showing not only *how* the Internet works, but also *why* it matters and has become one of the most transformative human inventions — while sparking dialogue on how we build a secure, inclusive, and sustainable digital future. In the 21st century, understanding the Internet is not optional — it’s essential. Whether you’re a business leader, policymaker, educator, student, or everyday Internet user, this book provides the context and clarity you need to navigate the opportunities and challenges of our connected world. *Get Your Copy* *The Internet Ecosystem* is now available: https://payhip.com/b/hfvYg Thank you, Best Regards, Nikesh B. Simmandree +230-5-907-3413 nikeshbs(a)outlook.com This message and its attachments are intended only for the person or entity to which it is addressed and are strictly confidential. If you have received this in error, please delete it from any devices after having informed the sender.

1 0