DHCPv6 still feared and hated at Apple?, was Re: Mac OSX 10.7from Sabrina

[Mark Kamichoff]

On Sat, Aug 20, 2011 at 08:24:01PM +0000, Bjoern A. Zeeb wrote:
> On Aug 20, 2011, at 8:18 PM, Mark Kamichoff wrote:
> 
> > On Thu, Aug 18, 2011 at 11:22:31PM +0300, Sabrina Friedman wrote:
> >> Sorry to come late to this thread, but I did some testing with a
> >> freshly-installed copy of Lion (clean install, not upgrade).
> >> DHCPv6 does work as expected as you mention.  I also noticed that
> >> privacy/temporary SLAAC addresses are enabled by default.  Anyone
> >> else seeing that?
> > 
> > Indeed, and I can see this causing problems in certain environments,
> > such as enterprise networks.  Doing the following:
> > 
> > % sudo sysctl -w net.inet6.ip6.use_tempaddr=0 
> > 
> > ... disables it.  Originally this didn't work for me running 10.7.0,
> > but it seems to work correctly on 10.7.1.  The temporary addresses
> > are still there after I set the sysctl, but they're not used for
> > outgoing connections anymore.  I suspect they'll be purged after the
> > lifetimes expire.  Although, I'm not sure how to set this on boot,
> > since /etc/sysctl.conf doesn't exist on OS X. 
> 
> Create it.

Huh, I just assumed its lack of existence was an indication that it
would be ignored if created.  Apparently this is not the case, thanks!

- Mark

-- 
Mark Kamichoff
prox at prolixium.com
http://www.prolixium.com/
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