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The Teredo IPv6 transition technology must be disabled.


Overview

Finding ID Version Rule ID IA Controls Severity
WN12-CC-000010 WN12-CC-000010 WN12-CC-000010_rule Medium
Description
IPv6 transition technologies, which tunnel packets through other protocols, do not provide visibility.
STIG Date
Microsoft Windows Server 2012 Domain Controller Security Technical Implementation Guide 2013-07-25

Details

Check Text ( C-WN12-CC-000010_chk )
If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \Software\Policies\Microsoft\Windows\TCPIP\v6Transition\

Value Name: Teredo_State

Type: REG_SZ
Value: Disabled
Fix Text (F-WN12-CC-000010_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "Set Teredo State" to "Enabled: Disabled State".