Windows Server 2019 source routing must be configured to the highest protection level to prevent Internet Protocol (IP) source routing.

Quick Actions

We are continuing to improve Stigviewer and we are planning on rolling out new services in the near future. Would you like to be part of the conversation on what those features should be? If so, click here.

Featured Partners

Web page built by Cyber Protection Services

Check out our new AI-powered GRC tool here .
Compliance Dictionary

Standardizes and unifies compliance terms.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-205859	WN19-CC-000040	SV-205859r991589_rule		Low

Description

Configuring the system to disable IP source routing protects against spoofing.

STIG	Date
Microsoft Windows Server 2019 Security Technical Implementation Guide	2025-01-15

Details

Check Text (C-6124r355939_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: \SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\

Value Name: DisableIPSourceRouting

Value Type: REG_DWORD
Value: 0x00000002 (2)

Fix Text (F-6124r355940_fix)

Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> "MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)" to "Enabled" with "Highest protection, source routing is completely disabled" selected.

This policy setting requires the installation of the MSS-Legacy custom templates included with the STIG package. "MSS-Legacy.admx" and "MSS-Legacy.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

STIG VIEWER