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

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

On Tue, 2 Aug 2022, Lee wrote:

> On 8/2/22, Tim Woodall wrote:
> > On Mon, 1 Aug 2022, Lee wrote:
> >
> > > Verizon FIOS finally rolled out IPv6 in my area.  yay!  I'd like for
> > > my Debian server to have a static IPv6 address.. same as I have for
> > > IPv4.  But how to do that?
> > >
> > > I have a Netgate firewall that does a dhcp6 request for a /56 from
> > > Verizon, then the firewall delegates a /64 to each internal subnet.
> > >
> > > I haven't been able to figure out how to assign a static address when
> > > the network part might [will] change.. so I've got everything using
> > > managed addresses (ie. dhcp6).  So effectively the server has a static
> > > address, but still.. I'd rather not depend on DHCPv6
> > >
> > > Thoughts on how2?
> > Not sure I exactly understand what you want but you can specify the
> > local part of an SLAAC ipv6 address thus:
> >
> > iface eth0 inet6 auto
> >          pre-up echo 64
> > > /proc/sys/net/ipv6/conf/eth0/accept_ra_rt_info_max_plen
> >          pre-up ip token set ::0123:4567:a9ab:cdef/64 dev eth0
>
> Yes!! That looks like what I want.
> Where does it go if I want to always done at boot time?

I've got it in /etc/network/interfaces.d/eth0

but whereever you've put the network configuration
/etc/network/interfaces perhaps?

(Your interface may well not be called eth0. I grabbed that from a
virtual machine)

Tim.