Hi Björn.

14 Jun 19 15:07:52, you wrote to Dale Shipp:

 DS>> So far as I know, the decision is not up to me, but to my ISP.

 BF>    Then you know wrong.

 BF>    With a tunnel like e.g. he.net you get a stable IPv6 address regardless
 BF> of what your ISP can offer you. It takes less than a minute to get one. If
 BF> your IPv4 address changes, it takes only seconds to update your IPv6 --
 BF> much faster than updating your IPv4 via various TTL settings at all DNS
 BF> servers involved...

 BF>    I've had a reliable IPv6 connection for almost 15 years now

And still after 15 years of "reliable ipv6 connection" :

 tommi@rpi:~$ telnet -6 eljaco.se 119
 Trying 2001:470:27:302::2...
 telnet: Unable to connect to remote host: Connection refused
 tommi@rpi:~$

:D

'Tommi

---