Jan 212009
 

Starting Windows Vista, Windows Server 2008 and Windows 7, to prevent address scans of IPv6 addresses based on the known company IDs of network adapter manufacturers, Windows by default generate random interface IDs for non-temporary autoconfigured IPv6 addresses, including public and link-local addresses. A public IPv6 address is a global address that is registered in DNS and is typically used by server applications for incoming connections, such as a Web server.


However, this can cause issues with some connection instances in which case you may need to disable this option.

To prevent Windows from using Random Identifiers,

1. Click Start – search “cmd“, right-click and choose “Run as Administrator“. This should launch the command window withe elevated privileges.

2. Run the following command:

C:\windows\system32> netsh interface ipv6 set global randomizeidentifiers=disabled

At anytime later, you can enable this (if requierd) as follows:

C:\windows\system32> netsh interface ipv6 set global randomizeidentifiers=enabled

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  7 Responses to “Disable IPv6 Random identifier in Windows 7, Server 2008 & Vista”

  1. hm is not work for me and i have windows 7 64 bit version.
    I write in all that you have write and its stand:
    ‘C:\windows\system64′is not recognized as an internal or external comman,
    Operable program or batch file.

  2. It didn’t work…!!!

  3. i didn’t work

  4. For Mcbecon and perhaps the others:

    Copy and paste the line AFTER “system32″ or “system64″…

    So in other words, you only have to copy + paste the following:

    netsh interface ipv6 set global randomizeidentifiers=disabled

    netsh interface ipv6 set global randomizeidentifiers=enabled

  5. Works fine.

    Paste ONLY the “netsh interface ipv6 set global randomizeidentifiers=disabled” (minus the quotes).

    It should respond with an “Ok.”

    Windows 7 Home Premium

  6. Works fine with windows server 2008 R2,

  7. Works fine in a Win Server 2k8 as a virtual machine.

    Comes back with “ok”

    Thanks a lot

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