Skip to content
ATO Pathways
Log In
Overview
Search
Catalogs
SCAP
OSCAL
Catalogs
Profiles
Documents
References
Knowledge Base
Platform Documentation
Compliance Dictionary
Platform Changelog
About
Catalogs
XCCDF
Cisco IOS Router RTR Security Technical Implementation Guide
SRG-NET-000362-RTR-000111
The Cisco router must be configured to have Gratuitous ARP disabled on all external interfaces.
The Cisco router must be configured to have Gratuitous ARP disabled on all external interfaces.
An XCCDF Rule
Details
Profiles
Prose
The Cisco router must be configured to have Gratuitous ARP disabled on all external interfaces.
Medium Severity
<VulnDiscussion>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.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>