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The Teredo IPv6 transition technology must be disabled.


Overview

Finding ID Version Rule ID IA Controls Severity
V-26578 WN12-CC-000010 SV-52967r1_rule ECSC-1 Medium
Description
IPv6 transition technologies, which tunnel packets through other protocols, do not provide visibility.
STIG Date
Windows Server 2012 Domain Controller Security Technical Implementation Guide 2014-01-07

Details

Check Text ( C-47273r1_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-45893r1_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "Set Teredo State" to "Enabled: Disabled State".