en-US windows computer

Set 6to4 State

Verified with Windows 11 25H2 — updated on July 30, 2026

Windows 11 25H2

Supported on: At least Windows Server 2008 R2 or Windows 7

Path in the GPO console

Computer Configuration\Administrative Templates\Network\TCPIP Settings\IPv6 Transition Technologies

Description

This policy setting allows you to configure 6to4, an address assignment and router-to-router automatic tunneling technology that is used to provide unicast IPv6 connectivity between IPv6 sites and hosts across the IPv4 Internet. 6to4 uses the global address prefix: 2002:WWXX:YYZZ::/48 in which the letters are a hexadecimal representation of the global IPv4 address (w.x.y.z) assigned to a site. If you disable or do not configure this policy setting, the local host setting is used. If you enable this policy setting, you can configure 6to4 with one of the following settings: Policy Default State: 6to4 is turned off and connectivity with 6to4 will not be available. Policy Enabled State: If a global IPv4 address is present, the host will have a 6to4 interface. If no global IPv4 address is present, the host will not have a 6to4 interface. Policy Disabled State: 6to4 is turned off and connectivity with 6to4 will not be available.

Registry

HKLM Software\Policies\Microsoft\Windows\TCPIP\v6Transition

More options available

Options

Select from the following states:
6to4_State enum
  • Default State -> Default (default)
  • Enabled State -> Enabled
  • Disabled State -> Disabled

MDM / Intune (CSP)

./Device/Vendor/MSFT/Policy/Config/ADMX_tcpip/6to4_State
Device Since Windows 10, version 2004 with KB5005101 [10.0.19041.1202] and later | Windows 10, version 20H2 with KB5005101 [10.0.19042.1202] and later | Windows 10, version 21H1 with KB5005101 [10.0.19043.1202] and later | Windows 11, version 21H2 [10.0.22000] and later Official mapping (Microsoft Learn)

Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)

Export Builder

BETA

Configure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.

These exports write the registry — this is not a managed GPO.

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: Set 6to4 State
; State: Enabled
; Supported on: At least Windows Server 2008 R2 or Windows 7

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\TCPIP\v6Transition]
"6to4_State"="Default"
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Set 6to4 State
# State: Enabled
# Supported on: At least Windows Server 2008 R2 or Windows 7

$path = 'HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name '6to4_State' -Value 'Default' -Type String

Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.

Open the Builder

Embed this policy on your site

What to embed
Theme

Adds one script line: the theme follows your site’s appearance and the height fits the content. If your site blocks scripts, the embed follows the visitor’s system theme.

Preview