Computer Configuration > Administrative Templates > Google Chrome > WebRtc settings
Both
HKLM\Software\Policies\Google\Chrome
This policy allows restricting which IP addresses and interfaces WebRTC uses when attempting to find the best available connection. Valid values: * default - WebRTC uses all available network interfaces. * default_public_and_private_interfaces - WebRTC uses all public and private interfaces. * default_public_interface_only - WebRTC uses all public interfaces, but not private ones. * disable_non_proxied_udp - WebRTC uses either UDP SOCKS proxying or will fallback to TCP proxying. When unset, defaults to using all available network interfaces. See RFC 8828 section 5.2 (https://tools.ietf.org/html/rfc8828.html#section-5.2) for a detailed description of all the handling values. Example value: default