IPv6 Dynamic Prefix Problems

[Liviu Pislaru]

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: johannes at 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
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