AIX must be configured with a default gateway for IPv4 if the system uses IPv4, unless the system is a router.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-215262 | SRG-OS-000480-GPOS-00227 | AIX7-00-002063 | SV-215262r991589_rule | 2024-08-16 | 3 |
| 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. |
| ℹ️ Check |
|---|
| 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 |
|---|
| Set a default gateway for IPv4 using: # route add 0 <ip address of gateway> |