Set CLAT Get Prefix Information from DNS: registry value GetPrefixInfoFromDNSComputerHKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc

Policy ID: IPxlatCfg_03_GetPrefixInfoFromDNS
Scope: Computer Configuration
Supported on: -
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: Network › TCPIP Settings › IPv6 Transition Technologies

Registry

GetPrefixInfoFromDNS

REG_DWORDComputer

HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc Current key

Enabled value: 1
Disabled value: 0

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc]

; Options (use only one)
; Enabled
"GetPrefixInfoFromDNS"=dword:00000001
; Disabled
"GetPrefixInfoFromDNS"=dword:00000000

CMD

:: Options (use only one)

:: Enabled
reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc" /v "GetPrefixInfoFromDNS" /t REG_DWORD /d 1 /f
:: Disabled
reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc" /v "GetPrefixInfoFromDNS" /t REG_DWORD /d 0 /f

PowerShell

# Common: create the key
New-Item -Path 'HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc' -Force | Out-Null

# Options (use only one)
# Enabled
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc' -Name 'GetPrefixInfoFromDNS' -PropertyType DWord -Value 1 -Force | Out-Null
# Disabled
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\IPxlatCfgSvc' -Name 'GetPrefixInfoFromDNS' -PropertyType DWord -Value 0 -Force | Out-Null