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All Direct Access traffic must be routed through the internal network.


Overview

Finding ID Version Rule ID IA Controls Severity
V-226140 WN12-CC-000006 SV-226140r794494_rule Low
Description
Routing all Direct Access traffic through the internal network allows monitoring and prevents split tunneling.
STIG Date
Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide 2022-03-01

Details

Check Text ( C-27842r475743_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: Force_Tunneling

Type: REG_SZ
Value: Enabled
Fix Text (F-27830r475744_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Network Connections -> "Route all traffic through the internal network" to "Enabled: Enabled State".