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V-5618

Gratuitous ARP must be disabled.

Finding ID
NET0781
Rule ID
SV-5618r3_rule
Severity
Cat II
CCE
(None)
Group Title
Gratuitous ARP must be disabled.
CCI
(None)
Target Key
(None)
Documentable
No
Discussion

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.

Fix Text

Disable gratuitous ARP on the device.

Check Content

Review the configuration to determine if gratuitous ARP is disabled. If gratuitous ARP is enabled, this is a finding.

Responsibility

Information Assurance Officer