On Apr 20, 2011, at 3:50 03PM, Owen DeLong wrote: > > On Apr 20, 2011, at 11:25 AM, Doug Barton wrote: > >> On 04/20/2011 10:54, Brzozowski, John wrote: >>> Doug, >>> >>> I am aware of the drafts you cited earlier, as Mikael mentions below the >>> existence of the same will not result in 6to4 being turned off >>> automatically or immediately. This process will likely take years. >> >> I was going to let this go, but after so many responses in the same vein I >> feel compelled to clarify. *I personally* believe that the answer to 6to4 is >> to just turn it off. These things have long tails because we insist that >> they do, not because they have to. *However,* I am realistic enough to know >> that it isn't going to happen, regardless of how disappointed I may be about >> that. :) >> > Turnning off the servers will not reduce the brokenness of 6to4, it will > increase it. > > The best way to get rid of 6to4 is to deploy native IPv6. > The best way to improve 6to4 behavior until that time is to deploy more, not > less 6to4 relays. > Hurricane Electric has proven this. > Comcast has proven this. > Every provider that has deployed more 6to4 relays has proven this. > >>> Please note the goal here is not to make 6to4 great, like many others we >>> hope to see 6to4 use diminish over time. >> >> "Hope is not a plan." Meanwhile, my main goal in posting was to make sure >> that to the extent that you(Comcast) intend to make changes to your 6to4 >> infrastructure that you take into account the current thinking about that, >> and I'm very pleased to hear that you have. >> > The best way to make 6to4 diminish has always been and still remains: > > Deploy Native IPv6 Now. > > That's a plan and a necessity at this point, but, execution is still somewhat > lagging. >
Of course, Comcast *is* deploying native IPv6; see, for example, http://mailman.nanog.org/pipermail/nanog/2011-January/031624.html It just takes a while -- and a non-trivial number of zorkmids -- to do things like replacing all of the non-v6 CPE. --Steve Bellovin, https://www.cs.columbia.edu/~smb
