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V-215265

CAT II (Medium)

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

Rule ID

SV-215265r991589_rule

STIG

IBM AIX 7.x Security Technical Implementation Guide

Version

V3R2

CCIs

CCI-000366

Discussion

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.

Check Content

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

Disable IPv6 forwarding on the system: 
# /usr/sbin/no -p -o ip6forwarding=0