AIX must be configured with a default gateway for IPv4 if the system uses IPv4, unless the system is a router.
Overview
| Finding ID |
Version |
Rule ID |
IA Controls |
Severity |
| V-215262 |
AIX7-00-002063 |
SV-215262r991589_rule |
|
Medium |
| Description |
| If a system has no default gateway defined, the system is at increased risk of man-in-the-middle, monitoring, and Denial of Service attacks. |
Details
| Check Text (C-16460r294237_chk) |
Check the system for an IPv4 default route using command:
# netstat -r |grep default
default 10.11.20.1 UG 1 1811 en0 - -
If a default route is not defined, this is a finding. |
| Fix Text (F-16458r294238_fix) |
Set a default gateway for IPv4 using:
# route add 0 <ip address of gateway> |