Set 6to4 Relay Name: registry value 6to4_RouterNameComputerHKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition

Policy ID: 6to4_Router_Name
Scope: Computer Configuration
Supported on: At least Windows Server 2008 R2 or Windows 7
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: Network › TCPIP Settings › IPv6 Transition Technologies

Registry

6to4_RouterName

REG_SZComputer

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

Enabled value: Depends on the option value
Element: Enter a router or relay name:
Value type: REG_SZ

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

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

; Value names and types follow the ADMX. Replace <enter value> below with your own data
"6to4_RouterName"="<enter value>"

CMD

:: Value names and types follow the ADMX. Replace <enter value> below with your own data

reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition" /v "6to4_RouterName" /t REG_SZ /d "<enter value>" /f

PowerShell

# Value names and types follow the ADMX. Replace <enter value> below with your own data

New-Item -Path 'HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition' -Name '6to4_RouterName' -PropertyType String -Value '<enter value>' -Force | Out-Null