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WebRtcLocalhostIpHandling

  • Article

Restrict exposure of local IP address by WebRTC

Supported versions

  • On Windows and macOS since 77 or later

Description

Allows you to set whether or not WebRTC exposes the user's local IP address.

If you set this policy to "AllowAllInterfaces" or "AllowPublicAndPrivateInterfaces", WebRTC exposes the local IP address.

If you set this policy to "AllowPublicInterfaceOnly" or "DisableNonProxiedUdp", WebRTC doesn't expose the local IP address.

If you don't set this policy, or if you disable it, WebRTC exposes the local IP address.

Note: This policy does not provide an option to exclude specific domains.

Policy options mapping:

  • AllowAllInterfaces (default) = Allow all interfaces. This exposes the local IP address

  • AllowPublicAndPrivateInterfaces (default_public_and_private_interfaces) = Allow public and private interfaces over http default route. This exposes the local IP address

  • AllowPublicInterfaceOnly (default_public_interface_only) = Allow public interface over http default route. This doesn't expose the local IP address

  • DisableNonProxiedUdp (disable_non_proxied_udp) = Use TCP unless proxy server supports UDP. This doesn't expose the local IP address

Use the preceding information when configuring this policy.

Policy options mapping:

Use this information when configuring this policy.

  • AllowAllInterfaces (default) = Allow all interfaces. This exposes the local IP address
  • AllowPublicAndPrivateInterfaces (default_public_and_private_interfaces) = Allow public and private interfaces over http default route. This exposes the local IP address
  • AllowPublicInterfaceOnly (default_public_interface_only) = Allow public interface over http default route. This doesn't expose the local IP address
  • DisableNonProxiedUdp (disable_non_proxied_udp) = Use TCP unless proxy server supports UDP. This doesn't expose the local IP address

Supported features

  • Can be mandatory: Yes
  • Can be recommended: No
  • Dynamic Policy Refresh: No - Requires browser restart
  • Per Profile: Yes
  • Applies to a profile that is signed in with a Microsoft account: No

Data type

  • String

Windows information and settings

Group Policy (ADMX) info

  • GP unique name: WebRtcLocalhostIpHandling
  • GP name: Restrict exposure of local IP address by WebRTC
  • GP path (Mandatory): Administrative Templates/Microsoft Edge/WebRtc settings
  • GP path (Recommended): N/A
  • GP ADMX file name: MSEdge.admx

Example value

Allow all interfaces. This exposes the local IP address

Registry settings

  • Path (Mandatory): SOFTWARE\Policies\Microsoft\Edge
  • Path (Recommended): N/A
  • Value name: WebRtcLocalhostIpHandling
  • Value type: REG_SZ

Example registry value

default

Mac information and settings

  • Preference Key name: WebRtcLocalhostIpHandling
  • Example value:
<string>default</string>

See also