Re: ipv6: static ipv6 address with dynamic network address possible?

[Tim Woodall <debianuser@woodall.me.uk>]

On Tue, 2 Aug 2022, Lee wrote:

> On 8/1/22, Andy Smith wrote:
> > Hello,
> >
> > On Mon, Aug 01, 2022 at 01:57:42PM -0400, Lee wrote:
> > > The dhcpv6 server on the netgate allows for static mappings like
> > >   <duid>   ::1:10
> > > where it fills in the network/64 portion from the delegation and uses
> > > the ::a:b:c:d for the host address.  I was hoping for something like
> > > that w/ Debian
> >
> > Oh, I thought you wanted to stop using DHCPv6 (protocol) entirely.
>
> I do want to stop using DHCPv6.  I was hoping there was a way to tell
> a Debian machine to use <something> as the (64 bit) host address and
> learn the network address from the router advertisement prefix info.
>
> This is a DNS & NTP server, so it needs a static address.  I'd also
> like different firewall rules for different machines.. which also
> requires static addresses for at least some machines.

Yes there is - see my earlier reply.

ip token set ::<hostportion>/64 dev eth0

(I think you might be able to do this after the interface has an IP and
it will then acquire an additional IP but I might be misremembering. I
use a pre-up command in e/n/i)

But SLAAC should normally give you a static address anyway, just tied to
your mac address (which maybe you don't want)