In any Group Policy preference, click Properties, and click the Common tab. Select the Item-level targeting check box, and click the Targeting… button. In the Targeting Editor, click the New Item menu, and click IP Address Range. Select the Use IPv6 check box and enter an IPv6 address in the corresponding field.

Windows Server settings. Administrative Templates There is not a handy GPO to disable IPV6, so you will need to set the following key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TCPIP6\Parameters:DisabledComponents to 0xff (255) (DWORD) Ensure ‘Configuration of wireless settings using … Disabling IPv6 Discussions : sysadmin Oct 22, 2008 Set-Net6to4Configuration The Set-Net6to4Configuration cmdlet sets the 6to4 configuration of both client computers and servers. 6to4 is an address assignment and router-to-router automatic tunneling technology that is described in RFC 3056: Connection of IPv6 Domains via IPv4 Clouds. 6to4 provides a globally-routable IPv6 address to a host with a public IPv4 address. This IPv6 address can be used to connect to other How to Disable IPv6 on Debian 10 - FAQforge

Disable IPv6 Windows 10: 3 Methods to Disable IPv6 in

Prefer IPV4 over IPV6 - Microsoft Community Jan 29, 2015 How to disable IPv6 on network adapter using PowerShell May 11, 2018

To determine the IPv4 addresses of Teredo servers, the client may send a DNS query to resolve the name To prevent Teredo related DNS query, or for those who doesn’t use Teredo or IPv6, users can disable or control Teredo in Windows by using the following methods.

Microsoft wrote KB article 929852 to document how to disable certain Internet Protocol version 6 (IPv6) components in Windows Vista (and later) manually using the registry. At the end of the article, Microsoft helpfully wrote, "Note: Administrators must create an ADMX file in order to expose the settings in step 5 in a Group Policy setting." Nice.