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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-225319 WN12-CC-000006 SV-225319r569185_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 Member Server Security Technical Implementation Guide 2022-09-06

Details

Check Text ( C-27018r471299_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-27006r471300_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Network Connections -> "Route all traffic through the internal network" to "Enabled: Enabled State".