Mac OS X 10.7, still no DHCPv6

Steven Bellovin smb at cs.columbia.edu
Mon Feb 28 07:25:53 CST 2011


On Feb 28, 2011, at 1:10 21AM, Randy Bush wrote:

>> I'm not saying there are no uses for DHCPv6, though I suspect
>> that some of the reasons proposed are more people wanting to do
>> things the way they always do, rather than making small changes
>> and ending up with equivalent effort.
> 
> add noc and doc costs of all changes, please
> 
Sure.  How do they compare to the total cost of the IPv6 conversion
excluding SLAAC?  (Btw, for the folks who said that enterprises may
not want privacy-enhanced addresses -- that isn't clear to me.  While
they may want it turned off internally, or even when roaming internally,
I suspect that many companies would really want to avoid having their
employees tracked when they're traveling.  Imagine -- you know the CEO's
laptop's MAC address from looking at Received: lines in headers.  (Some
CEOs do send email to random outsiders -- think of the Steve Jobs-grams
that some people have gotten.)  You then see the same MAC address with
a prefix belonging to some potential merger or joint venture target.  You
may turn on DHCPv6 to avoid that, but his/her home ISP or takeover target
may not.)


		--Steve Bellovin, http://www.cs.columbia.edu/~smb









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