Johannes,
I've read your blog post and i fully agree that DNS changes (dynamic DNS) and dynamic IPv6 allocation for LAN (DHCP-PD) is a big issue. Couple of years ago i addressed this issue and came up with a personal solution (you can test it and use it for free if you want). https://www.duiadns.net/ipv6-for-lan-feature regards, -- Liviu P. On 2015-12-16 11:33, Johannes Weber wrote: > Hello ipv6-ops, > > what are your experiences with dynamic IPv6 prefixes? Here in Germany, > several ISPs only offer dynamic /56 prefixes that change after a router > reboot. Of course, for "normal" end-users this is not a problem. But for > companies having several remote offices behind such ISP lines, this is a > problem. (And of course, for me as a network guy, too. ;)) > I encounter several problems with this type of dynamic prefixes and > summarized them here: > http://blog.webernetz.net/2015/10/27/ipv6-dyn-prefix-problems/ [1] > > 1) Many DNS changes for services behind the dyn prefix (not all devices are > able to update DNS records) > 2) Security policies with DynDNS ranges (how to allow a dyn IPv6-range in > other firewall policies?) > 3) Routing inside IPv6 VPN tunnels (solved with OSPFv3, but maybe not > optimal?) > > I am highly interested in others experience about dynamic prefixes. How do > you solve these problems, e.g., when a company has several remote offices > with dynamic prefixes? > > Thanks, > > Johannes > -- > > Johannes Weber > mail: johan...@webernetz.net > mobile: +49 174 1880211 > > blog: http://blog.webernetz.net [2] > twitter: https://twitter.com/webernetz [3] Links: ------ [1] http://blog.webernetz.net/2015/10/27/ipv6-dyn-prefix-problems/ [2] http://blog.webernetz.net [3] https://twitter.com/webernetz