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