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IP forwarding for IPv4 must not be enabled on AIX unless the system is a router.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-91681 | AIX7-00-002064 | SV-101779r1_rule | Medium |
| Description |
|---|
| IP forwarding permits the kernel to forward packets from one network interface to another. The ability to forward packets between two networks is only appropriate for systems acting as routers. |
| STIG | Date |
|---|---|
| IBM AIX 7.x Security Technical Implementation Guide | 2020-02-24 |
Details
| Check Text ( C-90835r3_chk ) |
|---|
| From the command prompt, run the following command: # no -o ipforwarding ipforwarding = 0 If the value returned is not "0", this is a finding. |
| Fix Text (F-97879r1_fix) |
|---|
| Disable IPv4 forwarding on the system by running command: # no -p -o ipforwarding=0 |