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
The router must be configured to have Gratuitous ARP disabled on all external interfaces.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-207151 | SRG-NET-000362-RTR-000111 | SV-207151r856635_rule | Medium |
| Description |
|---|
| A gratuitous ARP is an ARP broadcast in which the source and destination MAC addresses are the same. It is used to inform the network about a host IP address. A spoofed gratuitous ARP message can cause network mapping information to be stored incorrectly, causing network malfunction. |
| STIG | Date |
|---|---|
| Router Security Requirements Guide | 2024-05-28 |
Details
| Check Text ( C-7412r382436_chk ) |
|---|
| Review the configuration to determine if gratuitous ARP is disabled on all external interfaces. If gratuitous ARP is enabled on any external interface, this is a finding. |
| Fix Text (F-7412r382437_fix) |
|---|
| Disable gratuitous ARP on all external interfaces. |