Changes are coming to https://stigviewer.com.
Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey
IP forwarding for IPv4 must not be enabled, unless the system is a router.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-12023 | GEN005600 | SV-37929r1_rule | ECSC-1 | 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 |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2015-09-03 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-32422r1_fix) |
|---|
| Edit "/etc/sysctl.conf" and set net.ipv4.ip_forward to "0". Restart the system or run "sysctl -p" to make the change take effect. |