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    Over the past few days, several of our users have told us they have encountered IPv6 address assignment in Windows 2008.



    • 5 reading models

    Windows Vista, Windows Server 2008, and later versions of Windows also implement RFC 3484 and use a common prefix to determine which address to use when multiple addresses are available in a Domain System Name (DNS).

    By default, Windows IPv6 prefers unicast addresses over IPv4 addresses worldwide.

    Applies to: Windows 10 – all will be releasedski, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2
    Original Knowledge Base Number: 929852


    IT professionals usually disable IPv6 to diagnose network problems such as naming conventions.

    Use Registry Key To Configure IPv6

    IPv6 functionality can usually be configured by modifying the following registry key:

    Storage location: HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Tcpip6 Parameters
    Name: DisabledComponents
    Type: REG_DWORD
    Minimum value: 0x00 (default)
    Maximum value: 0xFF (IPv6 disabled)

    IPv6 Functionality Save money and reviews
    Prefer IPv4 over IPv6 Decimal 32
    Hexadecimal 0x20
    Binary xx1x xxxx

    Recommended instead of disabling IPv6.

    Disable IPv6 Decimal 255
    Hexadecimal 0xFF
    Binary 1111 1111

    See Startup Delay Occurs After Removing IPv6 on Windows if you reach startup delay after disabling IPv6 on Windows 7 SP1 or Windows Server R2 2008 Service Pack 1 (SP1).

    In addition, the launch of the policy is delayed for a few seconds if the IPv6 was disabled during misconfiguration and the DisabledComponents register was set to 0xffffffff. The correct value should be 0xff. For more information, see Internet Protocol (IPv6) Version 6 Overview .

    The DisabledComponents registry value does not affect the state of the checkbox. Although the DisabledComponents registry key can be configured to disable IPv6, select the primary check box on the Networking tab for each interface. This is expected behavior.

    You cannot completely disable IPv6 because IPv6 is used internally for many TCPIP tasks. For example, your family can still ping :: 1 after this setting.

    Disable all non-tunneling interfaces on IPv6 Decimal 16
    hex 0x10
    binary xxx1 xxxx
    Disable IPv6 Fast Tunnel Interfaces Decimal 1
    hex 0x01
    binary xxxx xxx1
    Disable all non-tunnel connections (except loopback) on IPv6 and on IPv6 link interface Decimal 17
    hex 0x11
    binary xxx1 xxx1
    Prefer IPv6 over IPv4 binary xx0x xxxx
    Re-enable all non-tunnel interfaces over IPv6 Binary xxx0 xxxx
    Reactivate all tunnel interfaces over IPv6 binary porn xxx0
    Re-enable on non-tunnel IPv6 interfaces and completely on IPv6 tunnel interfaces Binary xxx0 xxx0

    Windows 6to4 tunneling protocol bypass is enabled if the interface has actually allocated public IPv4 space (public IPv4 address points to any IPv4 URL not in, / 12, or 16). 6to4 essentially assigns one IPv6 address for each address to the main 6to4 tunneling interface, but 6to4 dynamically registers these IPv6 descriptors with the designated DNS server. If this behavior is undesirable, we recommend disabling IPv6 tunnel interfaces on the affected hosts.


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    You can also follow these steps to change your PC key:

    1. Open an administrative command prompt window.

    2. Run the following command:

        reg add "HKEY_LOCAL_MACHINE  SYSTEM  CurrentControlSet  Services  Tcpip6  Parameters" / v DisabledComponents / t REG_DWORD / d  / f 


      Replace the specific with the appropriate value.

    How To Calculate The Registry Value

    Windows bitmasks have the advantage of examining aspects of DisabledComponents and determining whether to disable a component.

    To find out which part of the bit parameters (bottom to top), see the table below.

    Name Parameter
    Tunnel Disable interfaces
    Tunnel6to4 Disable 6to4 Tunnel Interfaces
    TunnelIsatap Disable Isatap Interfaces
    Tunnel Teredo Disable Teredo Interfaces
    local Disable native user interfaces (also PPP)
    PreferIpv4 Prefer IPv4 in Default Prefix Policy
    TunnelCp Disable CP interfaces
    TunnelIpTls Disable IP-TLS interfaces

    For each section, 0 means false and 1 means true. You can find an example in the beer pong table below.

    Padimension Prefer IPv4 much more than IPv6 in prefix policies Disable IPv6 on all non-tunnel interfaces Disable IPv6 on all tunnel interfaces Disable non-tunneling IPv6 on user interfaces (except loopback) and on tunneling IPv6 interfaces
    Disable Tunneling Interfaces 0 0 1 1
    Disable 6to4 interfaces 0 0 0 0
    Disable Isatap Interfaces 0 0 0 0
    Disable Teredo Interfaces 0 0 0 0
    Disable native connections (also PPP) 0 1 0 1
    Prefer IPv4 if you are switching to the default prefix policy. 1 0 0 0
    Disable CP interfaces 0 0 0 0
    Disable IP-TLS interfaces 0 0 0 0
    Binary 0010 0000 0001 0000 0000 0001 0001 0001
    Hexadecimal 0x20 0x10 0x01 0x11

    Ex Using A GUI Network Device To Disable IPv6 Is Far From Supported

    This registry value does not affect a particular scan state in general. Although a registry key can disable IPv6, packet sniffing can be selected from the Networking tab for each interface. This is expected behavior.


    For more information on RFC 3484, see Selecting Default Address for Internet Protocol Six Reasons (IPv6) . More

    how to assign ipv6 address in windows 2008

    For more information on setting IPv4 priority over IPv6, see Using SIO_ADDRESS_LIST_SORT .

    For more information on RFC 4291, see IP Addressing Architecture Version 6 .

    For more information on the associated native language, see the following articles:

    how to assign ipv6 address in windows 2008

    Tools for tracing network support: Microsoft Network Monitor 3.4 (archive)

    Internet Protocol Version 6 (IPv6) is a special Windows prerequisite compared to Windows Server 2008 and newer types. It is not recommended to disable IPv6 or any of its components. In this case, some Windows components will not work.

    We recommend using IPv4 over IPv6 in prefix directives to disable IPv6 instead.

    Please follow the instructions in this section carefully. Serious complications can occur. occur when the Windows registry is incorrectly modified. Before changing it, reset the registry for recovery if you have any problems.

    • Administrators need to create a good .File-Admx file so that the PC options listed in the following table are available in their own Your Group Policy settings.
    • The current computer must be restarted for the changes to take effect.
    • Values ​​other than 0 or 33 will cause the Routing and Remote Access service to fail after this flow takes effect.

    Netmon 3.4 is not compatible with Windows Server 2012 and newer. When the LBFO-NIC association of the operating system is enabled. Use a message parser instead.



    The software to fix your PC is just a click away - download it now.

    Internet Protocol Version 6 (IPv6) is an important part of Windows Vista, Windows Server 2008 and newer.

    In the hierarchy of managed network nodes, go to the Configuration> Interfaces> VLAN tab.Select Vlan.Select the appropriate Vlan.Select one of the IPv6 tabs and expand the IP address assignment accordion.Select the Use static focus check box.For IPv6 addresses, click +.

    Log into this dedicated web interface of the router.Go to Advanced> IPv6.Enable IPv6 and use the type of Internet connection provided by your ISP.Enter the information required for the different connection types.Configure LAN ports.