Re: IPv6 Privacy Extension support?

[Hannes von Haugwitz <hannes@vonhaugwitz.com>]

On Wed, Mar 06, 2024 at 04:19:41AM -0800, James Prestwood wrote:
> On 3/4/24 1:40 PM, Grant Erickson wrote:
> > On Mar 4, 2024, at 11:32 AM, Hannes von Haugwitz <hannes@vonhaugwitz.com> wrote:
> > > On Mon, Mar 04, 2024 at 04:30:27AM -0800, James Prestwood wrote:
> > > > I'm not familiar with the privacy extensions specifically, but you can
> > > > enable MAC address randomization which should hide the MAC for you. You can
> > > > check the man pages for more details but in main.conf something like:
> > > >
> > > > [Settings]
> > > > AddressRandomization=network
> > > MAC address randomization hides the physical MAC address but does not
> > > prevent device tracking (within the same network). With privacy extension
> > > enabled, the IPv6 address is randomly regenerated every few hours.
> > >
> > > For more details see [RFC_4941].
> > >
> > > Best regards
> > >
> > > Hannes
> > James:
> >
> > I believe it’s handled in connman with these APIs:
> >
> >      https://git.kernel.org/pub/scm/network/connman/connman.git/tree/src/ipconfig.c#n528
> >
> > with the Linux kernel “use_tempaddr” sysctl setting. I assume iwd would have to replicate this infrastructure, or pull it into ELL and share it that way.
>
> Hmm, if this is all that's required then shouldn't this already work if
> Hannes is setting "use_tempaddr" externally to IWD? Of course having this
> within an IWD profile setting would be nice, but I think there must be more
> too it than this right?

Is there any news about this feature request?

Best regards

Hannes