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ipv6 is not available under Internet, online monitor options

  • September 18, 2026
  • 18 Antworten
  • 123 Aufrufe

How do I enable dualstack for ipv6? Thanks 

Lösung von schluej

 

18 Antworten

5G_Tester
Legende
  • Legende
  • September 18, 2026

Which technology do you use? DSL, Cable, Fiber, LTE? 


  • Autor
  • Besucher:in
  • September 18, 2026

Thanks for your help, I’m using Cable.


5G_Tester
Legende
  • Legende
  • September 18, 2026

When you use Cable, you will not get Dual Stack, only DS Lite. But you should receive an IPv6 address. 


schluej
Legende
  • September 18, 2026

Cable will not run without ipv6. IPv4 will run in ipv6 as dslite . Router model?


  • Autor
  • Besucher:in
  • September 18, 2026

I am using a Fritzbox 6690, and I do have an ipv6 address, but when I check if ipv6 is working here https://test-ipv6.run/ it shows that I don’t have ipv6 working. I’m not sure what I’m doing wrong.


Forum|alt.badge.img+10
  • Legende
  • September 18, 2026

Did you do some specific configuration on the router, or are you using a default configuration? Did you check your device?


  • Autor
  • Besucher:in
  • September 18, 2026

My configuration is very simple, But when I go to internet, online monitor on the 6690, there is no IPV6 tab. 

 

So then I went to Home network, Network, Advanced Network Settings and I configured it based on what I think I know? Did I get it wrong?

 


schluej
Legende
  • September 18, 2026

IPv6 is aktiv on pc side?

 


  • Autor
  • Besucher:in
  • September 18, 2026

Thanks, That option was enabled before and I was able to pass this ipv6 test IPv6 Test but after about 20 minutes the same test fails.


schluej
Legende
  • September 18, 2026

Cable base on IPv6, so you have always IPv6 aktiv. IPv4 is only a tunnel in IPv6, and you get only DSLite  with CGN.


  • Autor
  • Besucher:in
  • September 18, 2026

OK, that's why I can't figure it out. I have only encountered native ipv6 before. What option should I select in the settings below?

 


schluej
Legende
  • Lösung
  • September 18, 2026

 


  • Autor
  • Besucher:in
  • September 18, 2026

Thanks@schluej, if this works for my configuration I WILL mark your response as solved.


schluej
Legende
  • September 18, 2026

If not, please to a factory default rest. The startup setup should configure every thing right.


o2_Gerrit
  • Moderator
  • September 21, 2026

Hello ​@Skypx,

welcome to our o2 Community 🙂

Could you try a factory default rest and if so, did it have success?

Best Regards,

Gerrit


  • Autor
  • Besucher:in
  • September 22, 2026

I’m still testing but it’s been about an hour after a factory reset and all's well so far. Thanks for the help guys!


o2_Kathi
  • Moderatorin
  • September 22, 2026

​@Skypx Thank you for your patience and for letting us know here that everything is working. That's great 🎉
Please feel free to check in here anytime - we're here to help.
Best regards

Kathi


  • Autor
  • Besucher:in
  • September 24, 2026

​@schluej Hello, your first solution was correct. After days of testing our internet is 100% perfect! Thanks for your help.