Windows 2008 IPv6

I googled for a method to determine whether Windows 2008 is configured with IPv6.  What I found in the Control Panel/Network Connections did not show me what I have.  With the command line; ipconfig it only shows IPv4, yet I read that Win 2008 automatically configures it with IPv6.
Will route PRINT -6 give me this information?  I do not want to force it to use IPv6 by using "route -6"  The server is not mine.
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Will SzymkowskiSenior Solution ArchitectCommented:
Windows Server 2008 does have IPv6 enabled on the Network Adapter be default. When you run "ipconfig /all" look for Link-Local IPv6 Address also DHCPv6. When you see these you know that IPv6 is enabled on that specific adapter.

If IPv6 is disabled you will not see the link-local address or DHCPv6.

Route Print will not provide this info it only provides the routes link IPv4 does.

chimaAuthor Commented:
Will, thank you.  I'm working with 3 servers, on the known good/working server it shows; DHCP Enabled........Yes.  On the other two it shows DHCP Enabled...No.  So how could I enable it (if I may ask).
I could google it.
Will SzymkowskiSenior Solution ArchitectCommented:
No take a look at my screenshot below. When you do an ipconfig /all it will show you all of your Network Adapters. If it shows Link-Local IPv6 address then it is enabled. Also if you see DHCPv6 then you know it is enabled on the network adapter. If you do not see these settings then you can assume that IPv6 is disabled on the adapter.


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chimaAuthor Commented:
Interesting, I surely do not have what you indicated.  I apologize for making a false assumption.  Allow me to investigate further.   I need to ask whether IPv6 is truely needed for this installation.
Will SzymkowskiSenior Solution ArchitectCommented:
IPv6 can be enabled on the system but not enabled on the Network adapter. To completely disable IPv6 you do this from the registry, on the machine in question.

Disable IPv6 via Registry

chimaAuthor Commented:
I am upgrading Serena, so I need to ask them about needing IPv6, as their documents indicate, but I had submitted a ticket to our Support/Admin team and this is what I got;
 No this will not happen!
No was in RED
I'll issue your points next.
David Johnson, CD, MVPOwnerCommented:
Unless there is an overriding business necessity to not have ipv6 enabled don't disable it.  In other words, don't fix what isn't broken. Many server services rely on ipv6 these days
chimaAuthor Commented:
David, your comment is good to know.  I'm not managing these servers, so I'll let the Sys Admins do what they please.
Will, I was able to "also" check the IPv6 setting via the network connection.  And like you wrote; it is not set locally, and the registry change would be needed.
chimaAuthor Commented:
Thank you.
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Windows Server 2008

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