The Teredo IPv6 transition technology will be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-26578	WINNE-000004	SV-33691r1_rule		Medium

Description
IPv6 transition technologies which tunnel packets through other protocols do not provide visibility.

STIG	Date
Windows Server 2008 R2 Domain Controller Security Technical Implementation Guide	2019-06-18

Details

Check Text ( C-34139r1_chk )
If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows\TCPIP\v6Transition\ Value Name: Teredo_State Type: REG_SZ Value: Disabled

Fix Text (F-29829r1_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> “Teredo State” to “Enabled: Disabled State”.