Table of Contents
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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.
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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
Resume
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 |
| 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 10.0.0.0/8, 172.16.0.0 / 12, or 192.168.0.0/ 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:
-
Open an administrative command prompt window.
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Run the following command:
reg add "HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Tcpip6 Parameters" / v DisabledComponents / t REG_DWORD / d/ f Note
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.
Help
For more information on RFC 3484, see Selecting Default Address for Internet Protocol Six Reasons (IPv6) . More
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:
- Example 1. On domain controllers, you can enter a stream where LDAP should no longer run over UDP 389. Commentsee Portqry for troubleshooting Internet connectivity issues with Active Directory
- Example 2: Exchange Server 2010, you are likely to run into problems that can cause Exchange to stop working.See Arguments Againstdisable IPv6 Disable both IPv6 and Exchange – at all levels .
- Example 3: Failover ClusterSee What is a Microsoft Virtual Failover Cluster Adapter? related to Failover Clustering and IPv6 in Windows Server R2 2012.
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.
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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.
