| 2.6.5 Review Application Firewall Rules | CIS Apple OSX 10.9 L1 v1.3.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.2 Ensure packet redirect sending is disabled - /etc/sysctl ipv4 all send | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.2 Ensure ICMP redirects are not accepted - /etc/sysctl ipv4 all accept | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.2 Ensure ICMP redirects are not accepted - sysctl ipv4 default accept | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.3 Ensure secure ICMP redirects are not accepted - /etc/sysctl ipv4 all secure | CIS SUSE Linux Enterprise Workstation 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.3 Ensure secure ICMP redirects are not accepted - /etc/sysctl ipv4 all secure | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.5 Ensure broadcast ICMP requests are ignored - sysctl | CIS SUSE Linux Enterprise Workstation 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.6 Ensure bogus ICMP responses are ignored - sysctl | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.7 Ensure Reverse Path Filtering is enabled - /etc/sysctl ipv4 default rp_filter | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.7 Ensure Reverse Path Filtering is enabled - sysctl ipv4 all rp_filter | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.1 Ensure IPv6 router advertisements are not accepted - /etc/sysctl ipv6 all accept | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.1 Ensure IPv6 router advertisements are not accepted - /etc/sysctl ipv6 default accept | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure IPv6 redirects are not accepted - sysctl ipv6 all accept | CIS SUSE Linux Enterprise Server 11 L1 v2.1.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.9 ipsrcrouterecv | CIS IBM AIX 7.1 L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.10 ipsrcroutesend | CIS IBM AIX 7.1 L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.11 ip6srcrouteforward | CIS IBM AIX 7.1 L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.17 udp_pmtu_discover | CIS IBM AIX 7.1 L1 v2.1.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.5.3 (L1) Ensure 'MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Intune for Windows 11 v4.0.0 L1 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.5.6 (L2) Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes (recommended)' | CIS Microsoft Intune for Windows 10 v4.0.0 L2 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 4.5.6 (L2) Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes (recommended)' | CIS Microsoft Intune for Windows 11 v4.0.0 L2 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.7 Ensure Firewall is active - iptables-persistent run level 3 | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.2 (L1) Ensure 'MSS: (DisableIPSourceRouting IPv6) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows 11 Stand-alone v4.0.0 L1 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.2 (L1) Ensure 'MSS: (DisableIPSourceRouting IPv6) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows 10 Stand-alone v4.0.0 L1 BL | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.2 (L1) Ensure 'MSS: (DisableIPSourceRouting IPv6) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows 10 Stand-alone v4.0.0 L1 BL NG | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.3 (L1) Ensure 'MSS: (DisableIPSourceRouting) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows 11 Enterprise v4.0.0 L1 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.3 (L1) Ensure 'MSS: (DisableIPSourceRouting) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows Server 2022 Stand-alone v1.0.0 L1 MS | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.3 (L1) Ensure 'MSS: (DisableIPSourceRouting) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows 10 Stand-alone v4.0.0 L1 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.3 (L1) Ensure 'MSS: (DisableIPSourceRouting) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows 10 Stand-alone v4.0.0 L1 BL NG | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.3 Ensure 'MSS: (DisableIPSourceRouting) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows Server 2016 STIG v3.0.0 STIG DC | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.3 Ensure 'MSS: (DisableIPSourceRouting) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows Server 2019 STIG v3.0.0 L1 DC | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.3 Ensure 'MSS: (DisableIPSourceRouting) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows Server 2022 STIG v2.0.0 L1 Domain Controller | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.5 (L2) Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes (recommended)' | CIS Windows Server 2012 R2 MS L2 v3.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.5 (L2) Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes (recommended)' | CIS Windows Server 2012 DC L2 v3.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.6 (L2) Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes' | CIS Microsoft Windows 10 Enterprise v4.0.0 L2 BL | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.6 (L2) Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes' | CIS Microsoft Windows 10 Enterprise v4.0.0 L2 BL NG | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.6 (L2) Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes' | CIS Microsoft Windows 11 Stand-alone v4.0.0 L2 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.6 (L2) Ensure 'MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds' is set to 'Enabled: 300,000 or 5 minutes' | CIS Microsoft Windows 11 Stand-alone v4.0.0 L2 BL | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 20.31 Ensure 'Host-based firewall is installed and enabled' (STIG only) | CIS Microsoft Windows Server 2022 STIG v2.0.0 STIG DC | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| ACLs: Filter for RFC 1918 addresses (10.0.0.0/8) | TNS Alcatel-Lucent TiMOS/Nokia SR-OS Best Practice Audit | Alcatel | SYSTEM AND COMMUNICATIONS PROTECTION |
| ACLs: Filter for RFC 1918 addresses (172.16.0.0/12) | TNS Alcatel-Lucent TiMOS/Nokia SR-OS Best Practice Audit | Alcatel | SYSTEM AND COMMUNICATIONS PROTECTION |
| ACLs: Filter for RFC 3330 addresses (0.0.0.0/8) | TNS Alcatel-Lucent TiMOS/Nokia SR-OS Best Practice Audit | Alcatel | SYSTEM AND COMMUNICATIONS PROTECTION |
| ACLs: Filter for RFC 3330 addresses (198.51.100.0/24) | TNS Alcatel-Lucent TiMOS/Nokia SR-OS Best Practice Audit | Alcatel | SYSTEM AND COMMUNICATIONS PROTECTION |
| MSS: (DisableIPSourceRouting IPv6) IP source routing protection level (protects against packet spoofing) | MSCT Windows 11 v23H2 v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| MSS: (DisableIPSourceRouting IPv6) IP source routing protection level (protects against packet spoofing) | MSCT MSCT Windows Server 2022 DC v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing) | MSCT Windows 10 v21H1 v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing) | MSCT MSCT Windows Server 2022 DC v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes | MSCT Windows 11 v23H2 v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes | MSCT Windows 11 v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| vNetwork : reject-promiscuous-mode - 'portgroup' | VMWare vSphere 6.0 Hardening Guide | VMware | SYSTEM AND COMMUNICATIONS PROTECTION |
| Windows Defender Firewall: Protect all network connections | MSCT Windows Server 2025 MS v2506 v1.0.0 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
