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AIX must not have IP forwarding for IPv6 enabled unless the system is an IPv6 router.


Overview

Finding ID Version Rule ID IA Controls Severity
V-215265 AIX7-00-002066 SV-215265r508663_rule 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
IBM AIX 7.x Security Technical Implementation Guide 2021-06-16

Details

Check Text ( C-16463r294246_chk )
From the command prompt, run the following command:

# /usr/sbin/no -o ip6forwarding
ip6forwarding = 0

If the value returned is not "0", this is a finding.
Fix Text (F-16461r294247_fix)
Disable IPv6 forwarding on the system:
# /usr/sbin/no -p -o ip6forwarding=0