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The system must log martian packets.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22418 GEN003611 SV-37630r1_rule ECAT-1 Low
Description
Martian packets are packets containing addresses known by the system to be invalid. Logging these messages allows the SA to identify misconfigurations or attacks in progress.
STIG Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide 2014-07-02

Details

Check Text ( None )
None
Fix Text (F-31667r1_fix)
Configure the system to log martian packets.
Edit /etc/sysctl.conf and add a setting for "net.ipv4.conf.all.log_martians=1" and "net.ipv4.conf.default.log_martians=1".

Reload the sysctls.
Procedure:
# sysctl -p