SV-25287r1: Route all Direct Access traffic through internal network. | Windows 7 Security Technical Implementation Guide

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Assessment Title

Rule Text

Route all Direct Access traffic through internal network.

Description

Discussion Text

This setting ensures all traffic is routed through the internal network, allowing monitoring and preventing split tunneling.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000366CCE-10509-8

Additional Details

Responsibility

System Administrator

References

DPMS Target Windows 7 DISA DPMS Target Windows 7 1712

Checks

OVAL

oval:mil.disa.fso.windows:var:378700 ← xccdf_mil.disa.stig_value_route_all_traffic_through_the_internal_network_var

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

# Windows PowerShell
# Reconstructed from oval:mil.disa.fso.windows:def:3787
# Route all Direct Access  traffic through internal network.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Verifies 'Route all traffic through the internal network' is set to 'Enabled: Enabled State'
# registry_object (registry_test)
function test_1 {
  return (((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\TCPIP\v6Transition').GetValueKind('Force_Tunneling').ToString()]) -eq 'reg_sz') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\TCPIP\v6Transition' -Name 'Force_Tunneling' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'Force_Tunneling') -eq 'Enabled'))
}

if (test_1) {
  Write-Output "PASS"
} else {
  Write-Output "FAIL"
}

Assessment Script Powered by AISyntax-verified

A standalone PowerShell script to assess this control automatically. Review before running it in your environment.

Syntax-checked as valid PowerShell. Not executed here — running it for real needs the actual windows_7 target this check assesses.

# OVAL Definition: oval:mil.disa.fso.windows:def:3787
$compliant = Test-Path -Path "HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\Force_Tunneling" -ErrorAction SilentlyContinue; if ($compliant) { $regValue = Get-ItemProperty -Path "HKLM:\Software\Policies\Microsoft\Windows\TCPIP\v6Transition\Force_Tunneling" -ErrorAction SilentlyContinue; if ($regValue.Force_Tunneling -eq "Enabled") { Write-Output "PASS"; Exit 0 } } Write-Output "FAIL"; Exit 1

Remediation

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Network Connections -> “Route all traffic through the internal network” to “Enabled: Enabled State”.