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Set CLAT Permit

Verified with Windows 11 25H2 — updated on September 15, 2026 Supported on: Supported Windows 11

Windows 11 25H2

KB5124008

Shipped in a Windows update: not in the official ADMX package (Administrative Templates (.admx) for Windows 11 Oct 2025 Update), present no later than KB5124008 (build 26200.9445).

Path in the GPO console

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

Registry

HKLM Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc
Value name:
PermitNonCellularCLAT REG_DWORD
Enabled:
1
Disabled:
0

Description

This policy setting allows you to permit or disable the customer-side translator for 464XLAT (CLAT) globally for non-cellular interfaces. If you enable this policy setting, CLAT is globally permitted and can be enabled on network interfaces. If you disable this policy setting, CLAT is globally disallowed and cannot be enabled. If you do not configure this policy setting, the local host setting is used. No reboots or service restarts are required for this policy setting to take effect.

Export Builder

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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 CLAT Permit
; State: Enabled
; Supported on: Supported Windows 11

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc]
"PermitNonCellularCLAT"=dword:00000001
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Set CLAT Permit
# State: Enabled
# Supported on: Supported Windows 11

$path = 'HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'PermitNonCellularCLAT' -Value 1 -Type DWord

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

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