Hi Michiel!

16 Nov 2020 15:42, from Michiel van der Vlist -> Anna Christina Nass:

 AN>> I chose this, as my DTAG DSL connection would indeed offer a
 AN>> Dual-Stack IP connection, but the IPv6 prefix is not fixed and
 AN>> could change at any time - kind of like the IPv4 address.
 MV> Aha. How often does it change? I too have dynamic addresses, In
 MV> theory. My IPv4 address has been stable for almost two years now. It
 MV> only changes when the MAC address of the CPE changes. It can be stable
 MV> for years. The IPv6 prefix changes a bit more often and there is no
 MV> visible pattern. But it is only twice a year or so. Not often enough
 MV> to bother with dyndns. On the rare occasion that it changes, I just
 MV> update it manually. For a hobby system it is no big deal if IPv6 is
 MV> occasionally down for a few hours.

Same here with my Cable connection.
Dynamic IP that changed 2 times in 22 years ;)

But I know that DTAG has even a page, where you can trigger an IPv6 network prefix change.
But they also do it periodically.
Some of their customers see it as a "privacy" feature.

CU, Ricsi

... Engineering is the art of making what you want from things you can get.
--- GoldED+/LNX