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Windows 7: IPv6 Problem

25 Sep 2010   #1
cclloyd9785

Windows 7 Home Premium x64, Mac OS X 10.6.2 x64
 
 
IPv6 Problem

I was trying to learn some stuff on IPv6, and learned that Win7 already supports it. How can I enable it?

Apparently it works on my home desktop thats linked via LAN, (know by using ipv6 google, and What is my IPv6 Address?)

But neither of those sites work on my laptop.

So how can i get IPv6 sites working?


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25 Sep 2010   #2
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by cclloyd9785 View Post
I was trying to learn some stuff on IPv6, and learned that Win7 already supports it. How can I enable it?

Apparently it works on my home desktop thats linked via LAN, (know by using ipv6 google, and What is my IPv6 Address?)

But neither of those sites work on my laptop.

So how can i get IPv6 sites working?
The IPv6 protocol only functions on the LAN and is used for Homegroups only. There are a few test sites for IPv6 testing but thats about it for now. It's also enabled by default so no need to enable it.

I don't know what that site is but those tests do not work for me either.

Notice the check mark at IPv6 in the connection properties windows.


Attached Images
IPv6 Problem-ipv6-check.png 
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25 Sep 2010   #3
cclloyd9785

Windows 7 Home Premium x64, Mac OS X 10.6.2 x64
 
 

So theres no way to get it working for my wireless yet?
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25 Sep 2010   #4
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

I'm not really sure if that particular test site is made to work with a wireless connection. Have you tried it with laptop plugged into a wired connection yet?

At any rate this test doesn't matter, like I already mention IPv6 is used on the LAN only and it's enabled by default. Basically if you can set up a Homegroup it's working.
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25 Sep 2010   #5
alphanumeric

Windows 10 Education 64 bit
 
 

IPv6 is an Internet protocol, it works on more than just the LAN side. It will be the replacement for IPv4. Well I guess I should say it "will" work on more than just the LAN side. I'm no expert on this but I believe for that site to work with IPv6 your router > modem > ISP has to support it. Something has to give your PC an IPv6 address though DHCP. If you open a command prompt and run ipconfig/all it should list your ip address and such. I believe your IPv6 ip address is in there somewhere. I have IPv6 disabled and use a static IP so running ipconfig doesn't show me much. I don't use homegroup either.
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26 Sep 2010   #6
chev65

Windows 7 Ult, Windows 8.1 Pro,
 
 

Presently IPv6 only works on the LAN side. Disabling IPv6 is a waste of time and most often it only causes problems. The few sites you can access with IPv6 are only for testing purposes only. The Op is worried about a problem that simply does not exist, been here done this already a few times in fact.
Read more about this below.

I know what it's for and the reason for using it, but when it actually will be used on the WAN in place of IPv4 is another question entirely. The reason for doing this is because IPv4 is limited on address space where IPv6 has much greater address space.

From Wiki:
Larger address space

The most important feature of IPv6 is a much larger address space than that of IPv4: addresses in IPv6 are 128 bits long, compared to 32-bit addresses in IPv4.[1]

Decomposition of an IPv6 address into its binary form


The very large IPv6 address space supports a total of 2128 (about 3.41038) addresses—or approximately 51028 (roughly 295) addresses for each of the roughly 6.8 billion (6.8109) people alive in 2010.[12] In another perspective, this is the same number of IP addresses per person as the number of atoms in a metric ton of carbon.

The Argument against Disabling IPv6
It is unfortunate that some organizations disable IPv6 on their computers running Windows Vista or Windows Server 2008, where it is installed and enabled by default. Many disable IPv6-based on the assumption that they are not running any applications or services that use it. Others might disable it because of a misperception that having both IPv4 and IPv6 enabled effectively doubles their DNS and Web traffic. This is not true.
From Microsoft's perspective, IPv6 is a mandatory part of the Windows operating system and it is enabled and included in standard Windows service and application testing during the operating system development process. Because Windows was designed specifically with IPv6 present, Microsoft does not perform any testing to determine the effects of disabling IPv6. If IPv6 is disabled on Windows Vista, Windows Server 2008, or later versions, some components will not function. Moreover, applications that you might not think are using IPv6—such as Remote Assistance, HomeGroup, DirectAccess, and Windows Mail—could be.
Therefore, Microsoft recommends that you leave IPv6 enabled, even if you do not have an IPv6-enabled network, either native or tunneled. By leaving IPv6 enabled, you do not disable IPv6-only applications and services (for example, HomeGroup in Windows 7 and DirectAccess in Windows 7 and Windows Server 2008 R2 are IPv6-only) and your hosts can take advantage of IPv6-enhanced connectivity.

Read more. http://technet.microsoft.com/en-us/m....cableguy.aspx
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