Re: ndp(1) and arp(1) enhancements for easier scripting of IPv6 prefix delegation

Jörg Sonnenberger <[email protected]> Mon, 22 Jun 2026 09:30:40 +0200
Newsgroups gmane.os.netbsd.devel.network
Message-ID <[email protected]>
On 6/21/26 1:18 PM, Greg Troxel wrote:
> Martin Husemann <[email protected]> writes:
> 
>> I have a "dynamic" IPv6 prefix delegated to my internal network and
>> I need to automatically update firewall rules and DNS entries when
>> the prefix changes.
> 
> That is assuming that v6 addresses are stable except for the prefix
> change.  That's not true with stateless autoconfiguration and privacy
> extensions, which I view as the default address.

Why would you assume that? The operational model for Privacy Extension 
is a randomized outgoing address with a fixed incoming address.

Joerg