On 24 May 2013, at 17:44, Phil Mayers <[email protected]> wrote:
> On 26/03/13 12:14, Phil Mayers wrote: > >> >> However, the more serious issue we've faced is (presumably broken) hosts >> who re-generate their privacy addresses EXTREMELY frequently - on the >> order of minutes. I have one host (a Mac, I believe) > > Just to follow up on this old thread. > > I've confirmed at least one cause of this; MacOS X, at least on my test > machine (10.8.2) will re-generate the privacy address whenever it goes to > sleep and wakes up again. > > This happens even if the old privacy address has hours or days left on the > lifetime before sleeping, and the machine was asleep for minute. > > Grumble; it's crap like this that makes we want to force DHCPv6 and to hell > with address privacy. Sadly the vast majority of Macs on our network are > unmanaged, so I can't disable privacy addresses on them. We saw this too; it caused issues with FHS on the Cisco WLC, which assumes that the (relatively) rapid IP changes are an attack... Tim
