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   Hello Anna,   
      
   On Monday November 16 2020 14:58, you wrote to me:   
      
    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 could   
    AN> change at any time - kind of like the IPv4 address.   
      
   Aha. How often does it change? I too have dynamic addresses, In theory. My   
   IPv4 address has been stable for almost two years now. It only changes when   
   the MAC address of the CPE changes. It can be stable for years. The IPv6   
   prefix changes a bit more often and there is no visible pattern. But it is   
   only twice a year or so. Not often enough to bother with dyndns. On the rare   
   occasion that it changes, I just update it manually. For a hobby system it is   
   no big deal if IPv6 is occasionally down for a few hours.   
      
    AN> And thus I would need dynamic DNS not only for IPv4 but also for   
    AN> IPv6... So I chose to stay with my he.net tunnel   
      
   For IPv6 it is more difficult than for IPv4. When my ISP started offering   
   native IPv6 some four years ago, I had to make a choice. As it is they only   
   offer native IPv6 if you use their cable modem/router. That router does not   
   support tunnels. The he.net tunnel did a fine job, but I never got more than   
   half the IPv4 speed. With native IPv6 I have the full speed. So I dropped the   
   tunnel and went native IPv6 despite the minor inconvienence of a dynamic IPv6   
   prefix.   
      
    AN> -- which also allows me to specify reverse DNS servers. I don't know   
    AN> if that is even remotely possible for a private DTAG DSL connection...   
      
   I don't have to worry about reverse DNS. My ISP does that for me. ;-)   
      
      
   Cheers, Michiel   
      
   --- GoldED+/W32-MSVC 1.1.5-b20170303   
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