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IP forwarding for IPv4 must not be enabled, unless the system is a router.


Overview

Finding ID Version Rule ID IA Controls Severity
V-12023 GEN005600 SV-38821r1_rule ECSC-1 Medium
Description
If the system is configured for IP forwarding and is not a designated router, it could be used to bypass network security by providing a path for communication not filtered by network devices.
STIG Date
AIX 5.3 Security Technical Implementation Guide 2013-03-26

Details

Check Text ( C-37067r1_chk )
#no -o ipforwarding
If the value returned is not 0, this is a finding.
Fix Text (F-32334r1_fix)
Disable IPv4 forwarding on the system.
#no -p -o ipforwarding=0