Setting icmp_ignore_bogus_error_responses to 1 prevents the kernel from logging bogus responses (RFC-1122 non-compliant) from broadcast reframes, keeping file systems from filling up with useless log messages. Rationale: Some routers (and some attackers) will send responses that violate RFC-1122 and attempt to fill up a log file system with many useless error messages. Fix: Set the net.ipv4.icmp_ignore_bogus_error_responses parameter to 1 in /etc/sysctl.conf and run sysctl -p command: net.ipv4.icmp_ignore_bogus_error_responses=1 Modify active kernel parameters to match: # /sbin/sysctl -w net.ipv4.icmp_ignore_bogus_error_responses=1 # /sbin/sysctl -w net.ipv4.route.flush=1 [yes/no] Set the net.ipv4.icmp_ignore_bogus_error_responses parameter to 1 in /etc/sysctl.conf: net.ipv4.icmp_ignore_bogus_error_responses=1 Modify active kernel parameters to match: # /sbin/sysctl -w net.ipv4.icmp_ignore_bogus_error_responses=1 # /sbin/sysctl -w net.ipv4.route.flush=1 oval:org.secpod.oval:def:92374 oval:org.secpod.oval:def:66003 oval:org.secpod.oval:def:87330 oval:org.secpod.oval:def:85085 SCAP Repo OVAL Definition 2023-08-23