#ipv6only — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #ipv6only, aggregated by home.social.
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@silverwizard @nuintari Good gawd.
I'm going to chock this down as yet another reason to switch to #IPv6only, because colons do not overlap with the separator for DNS names.
Although I can now imagine an extremely cursed setup where such "pseudo Legacy IP" DNS names are used to aid the transition to #IPv6... Please, no more transitional mechanisms lol
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@silverwizard @nuintari Good gawd.
I'm going to chock this down as yet another reason to switch to #IPv6only, because colons do not overlap with the separator for DNS names.
Although I can now imagine an extremely cursed setup where such "pseudo Legacy IP" DNS names are used to aid the transition to #IPv6... Please, no more transitional mechanisms lol
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@ataudte @forwardingplane
The operational cost of permanent dual-stack" is the part people underrate. Two of everything: two firewall policies, two routing tables, two sets of edge cases.We run IPv6-only in production; IPv4 survives only as a thin translation shim at the edge. Fewer moving parts, not more.
The protocol was never the hard part. Trusting the v4 crutch could come off was. What's keeping dual-stack alive in yours, a real dependency, or habit?
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@ataudte @forwardingplane
The operational cost of permanent dual-stack" is the part people underrate. Two of everything: two firewall policies, two routing tables, two sets of edge cases.We run IPv6-only in production; IPv4 survives only as a thin translation shim at the edge. Fewer moving parts, not more.
The protocol was never the hard part. Trusting the v4 crutch could come off was. What's keeping dual-stack alive in yours, a real dependency, or habit?
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CW: the register, surveillance, contains links to Geoff Huston
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CW: the register, surveillance, contains links to Geoff Huston
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TLDR
https://www.arin.net/blog/2026/07/21/ipv6-mostly/
But:
IPv6-Mostly...
"Avoid masking IPv6 problems (due to HappyEyeballs’ fallback to IPv4), facilitating the debugging of IPv6 errors.""Discover and prevent incompatibilities in a future IPv6-only environment."
As long CLAT is active, I don't discover such problems.
All real IPv6 problems I recently discovered, I discovered in "strict" #IPv6only networks. -
TLDR
https://www.arin.net/blog/2026/07/21/ipv6-mostly/
But:
IPv6-Mostly...
"Avoid masking IPv6 problems (due to HappyEyeballs’ fallback to IPv4), facilitating the debugging of IPv6 errors.""Discover and prevent incompatibilities in a future IPv6-only environment."
As long CLAT is active, I don't discover such problems.
All real IPv6 problems I recently discovered, I discovered in "strict" #IPv6only networks. -
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We've built plenty of networks that can run #IPv6only. Yet most still carry IPv4 - not because the network needs it, but because the apps, devices, and legacy systems do.
https://labs.ripe.net/author/remco-van-mook/a-farewell-to-arps-ipv4-service-on-ipv6-only-networks/
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We've built plenty of networks that can run #IPv6only. Yet most still carry IPv4 - not because the network needs it, but because the apps, devices, and legacy systems do.
https://labs.ripe.net/author/remco-van-mook/a-farewell-to-arps-ipv4-service-on-ipv6-only-networks/
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Danke!
Den Link hast du vergessen 😉 -
Danke!
Den Link hast du vergessen 😉 -
@tschaefer
Ab 12 Uhr ging es. War aber ein nettes Selbstexperiment. Gelitten habe ich vor allem unter fehlendem #DuckDuckGo, die Familie vermisste auch #Pinterest und allgemein halt die #Microslop-Cloud (für die Arbeit).
Längerfristig dann natürlich auch #GitHub (#NixOS hostet alle Pakete dort), und beim Suchen (mit Google 😖) und Browsen tauchen immer wieder Seiten auf, die nicht mehr laden, wie zum Beispiel social.bund.de. (cc @itteam)
#ipv6only #ipv6 -
@tschaefer
Ab 12 Uhr ging es. War aber ein nettes Selbstexperiment. Gelitten habe ich vor allem unter fehlendem #DuckDuckGo, die Familie vermisste auch #Pinterest und allgemein halt die #Microslop-Cloud (für die Arbeit).
Längerfristig dann natürlich auch #GitHub (#NixOS hostet alle Pakete dort), und beim Suchen (mit Google 😖) und Browsen tauchen immer wieder Seiten auf, die nicht mehr laden, wie zum Beispiel social.bund.de. (cc @itteam)
#ipv6only #ipv6 -
#IPv6 readiness score of German ISP websites: (supra-regional)
#1und1 100% #IPv6only ready! 🎉
#DeutscheGlasfaser 99,2%
#Telekom 93,2%
#Vodafone 1,9%
#o2online 0,9%Why?
Readines Score via https://webres6.dev.sap/
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#IPv6 readiness score of German ISP websites: (supra-regional)
#1und1 100% #IPv6only ready! 🎉
#DeutscheGlasfaser 99,2%
#Telekom 93,2%
#Vodafone 1,9%
#o2online 0,9%Why?
Readines Score via https://webres6.dev.sap/
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@geerlingguy
Seeing such a statement from you, makes me really sad.To add to @tubsta 's message. I'm running #IPv6only on all but one VLAN. Every device I buy has to either work are does not get onboard.
I write to services I care if they have a broken or not existent #IPv6
Services and providers that don't move get behind. The world is already an #IPv6 world even in the US. Everyone who tells you otherwise has no clue.
Just coming from a conference with #IPv6mostly WIFI 75% v6
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@geerlingguy
Seeing such a statement from you, makes me really sad.To add to @tubsta 's message. I'm running #IPv6only on all but one VLAN. Every device I buy has to either work are does not get onboard.
I write to services I care if they have a broken or not existent #IPv6
Services and providers that don't move get behind. The world is already an #IPv6 world even in the US. Everyone who tells you otherwise has no clue.
Just coming from a conference with #IPv6mostly WIFI 75% v6
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#ipv6 #ipv4rip #ipv4 #clat #windows #464xlat #ipv6mostly #ipv6only #ripe92
slide 13/14/15 by Wilhelm Boeddinghaus
https://pretalx.ripe.net/media/ripe-92/submissions/XJWGCT/resources/RIPE92-May-2026-IPv6_MmzPXy4.pdfnow corrected by Microsoft as promised two weeks ago
It is still a experimental version, not released yet. (Build 29599.1000 )
(now you can use several windows hosts in one network segment with clat)
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#ipv6 #ipv4rip #ipv4 #clat #windows #464xlat #ipv6mostly #ipv6only #ripe92
slide 13/14/15 by Wilhelm Boeddinghaus
https://pretalx.ripe.net/media/ripe-92/submissions/XJWGCT/resources/RIPE92-May-2026-IPv6_MmzPXy4.pdfnow corrected by Microsoft as promised two weeks ago
It is still a experimental version, not released yet. (Build 29599.1000 )
(now you can use several windows hosts in one network segment with clat)
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Want to help testing #CLAT on Linux and run #networkmanager?
Please tryout:
https://ipv6-pod.info/2026-02/network-manager-clat.html -
Want to help testing #CLAT on Linux and run #networkmanager?
Please tryout:
https://ipv6-pod.info/2026-02/network-manager-clat.html -
@tschaefer I heard that #FOSDEM will be #IPv6only next time.
Please prepare you app or website.Thank you @Oskar456 for pursuing and pushing this.
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Just a reminder: there is a Experimental IPv6-only network
You can check your (web)sites.
https://ripe92.ripe.net/attend/support/technical-information/
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Some statements won't be true anymore within the next three weeks. 🤗
https://pretalx.ripe.net/media/ripe-92/submissions/XJWGCT/resources/RIPE92-May-2026-IPv6_KbCCKtH.pdf
Microsoft announced fixes for their #clat implementation 👍
"We should have a build available to test within 2-3 weeks".
