| 3.1.1 Disable IPv6 - sysctl.conf all | CIS Debian Family Workstation L2 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.2 Ensure packet redirect sending is disabled - 'net.ipv4.conf.default.send_redirects = 0 /etc/sysctl.conf /etc/sysctl.d/*' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.1.2 Ensure packet redirect sending is disabled 'net.ipv4.conf.default.send_redirects = 0 - sysctl' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.1 Ensure source routed packets are not accepted - 'net.ipv4.conf.all.accept_source_route = 0 - sysctl' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.5 Ensure broadcast ICMP requests are ignored - /etc/sysctl.conf /etc/sysctl.d/* | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.6 Ensure bogus ICMP responses are ignored - sysctl | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.2.8 Ensure TCP SYN Cookies is enabled - sysctl | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.1 Ensure IPv6 router advertisements are not accepted - 'sysctl net.ipv6.conf.default.accept_ra = 0' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.2 Ensure IPv6 redirects are not accepted - 'sysctl net.ipv6.conf.all.accept_redirects = 0' | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.3 Ensure /etc/hosts.deny is configured | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.3.3 Ensure /etc/hosts.deny is configured | CIS Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.1 Ensure default deny firewall policy - Chain FORWARD | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.1 Ensure default deny firewall policy - Chain FORWARD | CIS Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.1 Ensure default deny firewall policy - Chain INPUT | CIS Debian 9 Workstation L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.1.2 Ensure loopback traffic is configured - output | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.1 Ensure IPv6 default deny firewall policy - Chain FORWARD | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.1 Ensure IPv6 default deny firewall policy - Chain OUTPUT | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.2 Ensure IPv6 loopback traffic is configured | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.3 Ensure IPv6 outbound and established connections are configured | CIS Debian 9 Server L1 v1.0.1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.5.2.4 Ensure IPv6 firewall rules exist for all open ports | CIS Aliyun Linux 2 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.4 Ensure loopback traffic is configured - allow in v6 | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.1.4 Ensure loopback traffic is configured - allow out v4 | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.1 Ensure nftables is installed | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.2 Ensure IPv4 loopback traffic is configured - OUTPUT | CIS CentOS 6 Server L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.2 Ensure IPv4 loopback traffic is configured - OUTPUT | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.3 Ensure iptables are flushed - v4 | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.3 Ensure iptables are flushed - v6 | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.2.8 Ensure default deny firewall policy - output | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3 Ensure loopback traffic is configured - INPUT | CIS Amazon Linux v2.1.0 L1 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.1.3 Ensure Uncomplicated Firewall is not installed or disabled | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.1 Ensure default deny firewall policy - FORWARD | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.1 Ensure default deny firewall policy - INPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.2 Ensure loopback traffic is configured - INPUT | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.2 Ensure loopback traffic is configured - INPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.2.2 Ensure loopback traffic is configured - OUTPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.3.1 Ensure IPv6 default deny firewall policy - Chain FORWARD | CIS Debian Family Server L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.3.2 Ensure IPv6 loopback traffic is configured - INPUT | CIS Debian Family Workstation L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure IPv6 firewall rules exist for all open ports - iptables | CIS CentOS 6 Server L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure IPv6 firewall rules exist for all open ports - iptables | CIS CentOS 6 Workstation L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 3.6.3.4 Ensure IPv6 firewall rules exist for all open ports - ss | CIS CentOS 6 Server L1 v3.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.1.1 Disable IP Forwarding | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.2.7 Enable RFC-recommended Source Route Validation - net.ipv4.conf.all.rp_filter | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 7.3.1 Disable IPv6 Router Advertisements - net.ipv6.conf.default.accept_ra | CIS Debian Linux 7 L1 v1.0.0 | Unix | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.2 Ensure 'MSS: (DisableIPSourceRouting IPv6) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows 10 Enterprise v5.0.0 L1 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.2 Ensure 'MSS: (DisableIPSourceRouting IPv6) IP source routing protection level' is set to 'Enabled: Highest protection, source routing is completely disabled' | CIS Microsoft Windows 10 Enterprise v5.0.0 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 2022 v5.1.0 L1 MS | 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 11 Enterprise v5.1.0 L1 BL | 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 v5.0.0 L1 MS | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.6 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 v5.0.0 L2 | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
| 18.5.6 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 v5.0.0 L2 BL NG | Windows | SYSTEM AND COMMUNICATIONS PROTECTION |
