Subj : 2:463/877 joins f1d0 club To : Alex Shuman From : Michiel van der Vlist Date : Tue Jan 23 2018 16:14:02 Hello Alex, On Tuesday January 23 2018 15:48, you wrote to me: AS>>>>> ipv6.dynamic.ziggo.nl [2001:1c02:1100:d700:f1d0:2:280:5555] AS>>>>> but your ISP does not seem to assign proper reverse DNS for AS>>>>> customers. MvdV>>>> Indeed, that is a bit of a joke. Every IPv6 addres MvdV>>>> (2001:1c02::/32) of my provider backresolves to MvdV>>>> ipv6.dynamic.ziggo.nl. AS>>> Is it dynamic or static? MvdV>> Dynamic. AS> So it is set automatically by ISP and changes every time you AS> reconnect? Then how did you set it to f1d0-style? No, they call it dynamic, because they do not guarantee that the /56 prefix will never change. Since November 2017 it has only changed once. That was after a three hour unscheduled power down. Short power interuptions do not seem to cause a change. Even so, all THEY set is the prefix. Within the /64, I can either use SLAAC or configure it manually. The latter I did for the ::f1d0:2:280:5555 part. Cheers, Michiel --- GoldED+/W32-MSVC 1.1.5-b20170303 * Origin: he.net certified sage (2:280/5555) .