https://community.swisscom.ch/t5/Archiv-Internet/IPv6/td-p/418765 #no problems. General question
[https://community.swisscom.ch/t5/Swisscom-TV/mit-ipv6-Internetdurchsatz-halbiert/td-p/482420](https://community.swisscom.ch/t5/Swisscom-TV/mit- ipv6 internet throughput halved/td-p/482420) #data throughput halved
[https://community.swisscom.ch/t5/Internet/Probleme-mit-IPV6-Swisscom-TV-und-Swisscomseite-spiele-usw/td-p/489976] (https://community.swisscom.ch/t5/Internet/Probleme-mit-IPV6-Swisscom-TV-und-Swisscomseite-spiele-usw/td-p/489976) #Klötzchenbildung TV, Internet slow, Fritzbox, Internet Box / 2nd user configured FB incorrectly
[https://community.swisscom.ch/t5/Archiv-Internet/Pl%C3%B6tzlich-IPv6-aktiv-warum/td-p/394421](https://community.swisscom.ch/t5/Archiv- Internet/Pl%C3%B6tzlich-IPv6-active-why/td-p/394421) #IPv6 suddenly active? Why? Scandal! Help no NAT 🙂
[https://community.swisscom.ch/t5/Archiv-Internet/Router-unter-externer-IP-nicht-erreichbar/td-p/413835](https://community.swisscom.ch/t5/Archiv- Internet/router-unavailable-under-external-IP/td-p/413835) #Solution, force IPv6
[https://community.swisscom.ch/t5/Archiv-Internet/Web-Seiten- Werden-langsam-auf Building-TCP-Retransmission-TCP/td-p/425246](https://community.swisscom.ch/ t5/Archive-Internet/Web-Pages-are-being-built-slowly-TCP-Retransmission-TCP/td-p/425246) #IPv6 disabling is not the solution. Network problem in the core
[https://community.swisscom.ch/t5/Internet/Diagnose-langsamer-Connection-establishment-IPv6/td-p/414452](https://community.swisscom.ch/t5/Internet/Diagnose-langsamer-Connection-establishment- IPv6/td-p/414452) #2016 Problem EDNS, then disappeared. At best solution for users with ancient Hyjacked devices
[https://community.swisscom.ch/t5/Router-Hardware/ipv4-und-ipv6-Ftp-Probleme/td-p/490655](https://community.swisscom.ch/t5/Router-Hardware/ ipv4-and-ipv6-Ftp-Problems/td-p/490655) #Find out IPv6 correctly. NO ONE USES WIEISTMEINEIP.DE
[https://community.swisscom.ch/t5/Archiv-Internet/Problem-bei-WLAN-Wechsel/td-p/418289](https://community.swisscom.ch/t5/Archiv-Internet/Problem- at-WLAN-Wechsel/td-p/418289) #And indeed. With a serious analysis you can also deactivate IPv6 with good reason 🙂 in 2016
6 months later
Nothing new but still from the aspect of companies and IoT.
[https://www.vodafone.de/business/featured/digitales-business/digitaler-arbeitsplatz/ipv4-versus-ipv6-baren-es-akuten-handlungsbedarf-fuer-unternehmen/](https://www.vodafone .de/business/featured/digital-business/digital-workplace/ipv4-versus-ipv6-there-are-acute-action-need-for-companies/)
So that you can classify this correctly, another question about the current status of the use of IPv6 in the Swisscom network:
Is it still true that Swisscom does not assign fixed IPv6 prefixes (keyword 6rd) in the private customer network, and it is therefore not possible to access a fixed one from outside (e.g. to use a VPN server in your own network behind an Internet box). IPv6 address to make?
Or asked using an example.
Use case: Access to an Open VPN server in the home network behind an Internet box?
Standard solution under IPv4:
Access to public individual IPv4 address using DynDNS (service from Swisscom or third parties) and port forwarding UDP 1194 from the Internet box to the internal IP address of the Open VPN server
Standard solution under IPv6 of a private Swisscom connection:
???
Hobby-Nerd ohne wirtschaftliche Abhängigkeiten zur Swisscom
Yes Swisscom still uses 6rd for their private customers. Therefore, the prefix is ​​calculated based on the WAN legacy IP, even with CGNAT, since the WAN IP can be assigned uniquely from RFC 6598. (Around 4 million times if the prefix is ​​not expanded).
So first of all. Standard solution would be a static /48 prefix if desired.
But if that’s not possible, you can work with services like Dynv6: [https://www.synology-forum.de/showthread.html?72298-dynv6-Kostenloser-Dyndns-Service-für-IPv4-und-IPv6](https://www.synology-forum.de/showthread. html?72298-dynv6-Free-Dyndns-Service-for-IPv4-and-IPv6)