[arin-ppml] The non-deployment of IPv6

Ted Mittelstaedt tedm at ipinc.net
Mon Dec 7 17:49:22 EST 2009

Owen DeLong wrote:
> On Dec 7, 2009, at 1:57 PM, David Farmer wrote:
>> Ted Mittelstaedt wrote:
>> ...
>>> Today, though, Vista bombed hard, and it's too early to see what Win 7
>>> will do - but I frankly don't see a huge reason to switch to it, and
>>> I have both Win XP and Win 7 at home and in the office.  And seriously,
>>> folks, does everyone here understand that Microsoft will be releasing 
>>> security updates and patches to XP Professional until 4/8/2014?  That
>>> is almost 5 years from now.  You can be sure that XP will be a 
>>> significant number of installed seats on the Internet until then, and
>>> as long as it is, IPv6 isn't going to be widely deployed.
>>> As for IPv4+, or whatever alternative you dream up, unless you have MS
>>> buy-in, then you can just forget it.  And MS is backing IPv6
>>> Ted
>> AMEN!!!, +1, You got it man!
> 1. The lack of IPv6-only name resolution is not a significant barrier to
>     IPv6 deployment. It would be a significant barrier to IPv4 removal.
> 2. If M$ is going to be releasing patches to XP until 2014, then, why would
>     you assume those patches will never include a patch that enables
>     DNS resolution from an IPv6 nameserver?
> In reality, this is only really an issue if you are attempting to deploy 
> an XP
> system in an IPv6-only environment. As long as you deploy it in an IPv4 
> only
> or a dual-stack environment and provide it at least one IPv4-based 
> resolver,
> things will work with IPv6.

I think this is wishful thinking.  It was certainly very possible to 
dual-stack IPX and IP and for a few years people did - but most admins
hated it - and pressured Novell to adopt IP and abandon IPX.  Novell
of course did not want to do that as it would unlock customers from
NetWare - with the result that admins basically gave up on NetWare
and went to Windows NT Server.  (of course there were other reasons too)

Dual-stack is a problem in the corporate world because you have 
increased training costs.  Admins switched internal networks to
IP last time because the Internet pushed them to do it.  Likely
they will want to wait until significant IPv6 is deployed on the
Internet before switching internal networks to IPv6 this time, and
nothing on the Internet is doing the pushing to IPv6, which is why
I think it will be a longer time coming.

Don't forget most corps are on licensing agreements with MS that give
them rights to run ANY PRIOR version of Windows in addition to the
corporate one.  Regardless of whether XP is available on pre-loads
or not, many corps. will be buying Vista systems them loading XP
images on them for some time.


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