Skip to content
Hallway
0:00 / 0:00

#ipv6#dns64#464xlat

T-Mobile’s path to IPv6 Only

Rocky Mountain IPv6 Taskforce

290 subscribers • 1 video on Hallway

YouTube
  • Recommended by 1 person: 1 on Hacker News.
  • Presented by Stephan Lagerholm, DNS and network architect at T-Mobile

Intermediate. Assumes working knowledge.

2.4K views9 years ago1 recommendation

Systems programmingNetworking and protocolsMobile app architecture

Stephan Lagerholm explains how T-Mobile transitioned its mobile network to IPv6-only using DNS64 and 464XLAT, with a live Android demo.

For the past 10 years T-Mobile has worked towards creating an IPv6 environment and we are now getting very close to our goal. Stephan presents learning on how to successfully enable IPv6-only using DNS64 with or without 464XLAT. He will do a live demo of the different IP interfaces on an Android handset. Finally, he will discuss and give some best practices on how to handle DNS, applications, and websites that are having issues with DNS64. Stephan Lagerholm is an experienced networking thought leader who designs, builds and operates large and complex networks. He has experience in a wide array of network technologies with a deep expertise in DNS. Stephan is currently employed at T-Mobile where he leads a team of network and DNS architects. Previously, he managed the team responsible for DNS at Microsoft, as well as held senior leadership positions at Secure64 Software Corporation.

Why it's here

1 person recommends this

What people say. Engineers recommend this talk as a practical, real-world case study of deploying a massive IPv6-only network.

MrRadaron Hacker News • Recommends

On “Five years of IPv6: whither the next five?”

…GN become required to provide IPv4 service it will cause the cost of supporting IPv4 to rise over time and naturally push ISPs to kill IPv4 as the use of v4 drops while the costs to support it do not. I can also recommend a short talk by Cloudflare about their experience serving IPv6 traffic2 and another on the history and future of IPv63. 0 link to this video 1 link 2 link 3 link…
View on Hacker News

throw0101aon Hacker News • Mentions

On “India is leading IPv6 migration with 61.67% adoption”

I'm not sure what you're referring to. Here's a dude from T-Mobile explaining how they have (in 2017) over ten million end-customer devices without any IPv4 addresses assigned: * link to this video For reaching services that are IPv6 only they use(d) DNS64 (with and without 464XLAT).
View on Hacker News

throw0101aon Hacker News • Mentions

On “IPv4 vs. IPv6 FAQ”

> This should help address these types of issues so more devs can get onto iOS more easily without having to meet Apple's level of requirements. Well if an app developer does not ensure that their code works on a device that only has an IPv6 address they will be in for a big surprise: lots of mobile telcos only give out IPv6 addresses. Connecting to the IPv4 world is done via CG-NAT with the first few hops being IPv6-only. Here's a guy from T-Mobile presenting on it: * link to this video
View on Hacker News

throw0101aon Hacker News • Mentions

On “IPv4 Waiting List”

> I wonder when (or if) we will see new IPv6 only ISPs. If you have a mobile device on US T-Mobile you only get a IPv6 address on it: * link to this video * link * link Any access to IPv4 is through a proxy.
View on Hacker News

throw0101aon Hacker News • Mentions

On “Reasons for servers to support IPv6”

> What's really interesting is how many of these "we fear change" IT people don't realize they're already using IPv6 on their phones every day, with a majority of the sites they visit. For example see the video "T-Mobile’s path to IPv6 Only": * link to this video
View on Hacker News

throw0101aon Hacker News • Mentions

On “The Formation of IPv4 Address Markets (2021)”

"T-Mobile’s path to IPv6 Only": > For the past 10 years US T-Mobile has worked towards creating an IPv6 environment and we are now getting very close to our goal. Stephan presents learning on how to successfully enable IPv6-only using DNS64 with or without 464XLAT. He will do a live demo of the different IP interfaces on an Android handset. Finally, he will discuss and give some best practices on how to handle DNS, applications, and websites that are having issues with DNS64. * link to this video Apple mandated that all app in the iOS/mobile App Store had to support working on IPv6-only networks: * link Perhaps they should to the same thing for the macOS App Store.
View on Hacker News

zacweston Hacker News • Mentions

On “The Formation of IPv4 Address Markets (2021)”

iPhones on T-Mobile do not use 464XLAT, they use native IPv6 only. Some system frameworks like URLSession can do the NAT64 translation of hard-coded IPv4 addresses but it still goes over IPv6. In the video linked above: link to this video
View on Hacker News

throw0101aon Hacker News • Mentions

On “Is IPv6 faster than IPv4?”

> Anyone running v6 only and bridging to v4 on the edge? If you are on T-Mobile USA you are IPv6-only on your mobile device: * link * link to this video Lots of folks are probably IPv6-only without realizing it.
View on Hacker News

throw0101aon Hacker News • Mentions

On “Two containers with same number detected in Chittagong port”

> … ipv4 is still the majority of internet traffic. Not if you're on mobile. Lots of cell networks only give IPv6 addresses to phones. E.g., T-Mobile in the US: * link to this video
View on Hacker News

throw0101con Hacker News • Mentions

On “Tell HN: IPv6-only still pretty much unusable”

> All mobile clients are behind CG-NAT. Demonstrably false. T-Mobile US mobile clients are IPv6-only and connect via IPv6 to IPv6 sites: * link * link to this video NAT is only used to connect to IPv4-only hosts via DNS64 (with or without 464XLAT). As of 2022Q2, T-Mobile US has 110 million customers: * link One-third of the US population is connecting via IPv6-only on a day-to-day, hour-to-hour basis every time their smartphone reaches out over the radio.
View on Hacker News

throw0101bon Hacker News • Mentions

On “Thinking about our passive exposure to IPv6 issues”

> T-Mobile and Verizon both use CGNAT (but do issue individual ipv6 addresses to end user devices). More specifically, T-Mobile US only assigns IPv6 addresses to devices, and to reach the IPv4 world you have to go through a translation mechanism. Presentations from T-Mobile at NANOG and Rocky Mountain IPv6 Taskforce: * link * link to this video
View on Hacker News

throw0101con Hacker News • Mentions

On “AWS IPv4 Estate Now Worth $4.5B”

…tting very close to our goal. Stephan presents learning on how to successfully enable IPv6-only using DNS64 with or without 464XLAT. He will do a live demo of the different IP interfaces on an Android handset. Finally, he will discuss and give some best practices on how to handle DNS, applications, and websites that are having issues with DNS64. * link to this video So they started in 2007. Whatever ISP you're with has probably had at least 2-3 tech refreshes in which IPv6 hardware has been available. For the CPE, Free in France had IPv6 in 2007: * link…
View on Hacker News

throw0101con Hacker News • Mentions

On “Do You Need IPv4 Anymore?”

> Ha! I have an iPhone 15 and when I switch to mobile I get an IPv4-only address! My mobile provider is Verizon. APNIC 34 (2017) presentation on Verizon and IPv6: * link Also, a 2017 presentation on T-Mobile US going IPv6-only: * link to this video
View on Hacker News

throw0101con Hacker News • Mentions

On “Do You Need IPv4 Anymore?”

> I have yet to meet an infrastructure engineer or even hear of one who switched to IPv6 on purpose because they thought it was better. T-Mobile US: * link to this video Wells Fargo: * link Microsoft * link * link Google: * link LinkedIn: * link Facebook is famously IPv6-only internally (and as of 2016, 60% of user traffic was over IPv6): * link * link * link
View on Hacker News

throw0101con Hacker News • Mentions

On “Why No IPv6?”

Tell that to T-Mobile US: * link to this video Wells Fargo: * link Microsoft: * link * link Google: * link LinkedIn (pre-Microsoft): * link
View on Hacker News

throw0101aon Hacker News • Mentions

On “No NAT November: My month without IPv4”

> At the rate it's going, IPv6 should be ready … It's ready now. T-Mobile US is IPv6-only on handsets, as are many other carriers: * link to this video Microsoft went towards IPv6-only in corporate networks so that their IPv4 address could be moved to Azure to generate revenue: * link See also Google and their offices: * link Facebook/Meta is IPv6-only in their DCs: * link According to Google, the US and UK is half IPv6 (France and Germany are >75%): * link
View on Hacker News