The ISATAP IPv6 transition technology must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-26577	WN08-CC-000009	SV-48353r1_rule	ECSC-1	Medium

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

STIG	Date
Windows 8 Security Technical Implementation Guide	2013-07-03

Details

Check Text ( C-45025r1_chk )
If the following registry value does not 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: ISATAP_State Type: REG_SZ Value: Disabled

Fix Text (F-41485r1_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> TCPIP Settings -> IPv6 Transition Technologies -> "ISATAP State" to "Enabled: Disabled State".