JUNI-RT-000150 - The Juniper router must be configured to have Gratuitous ARP disabled on all external interfaces.

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This audit has been deprecated and will be removed in a future update.

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Information

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.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Disable gratuitous ARP on all external interfaces using the following command.

[edit interfaces ge-1/1/0 ]
delete gratuitous-arp-reply

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Juniper_Router_Y21M02_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6, CAT|II, CCI|CCI-002385, CSCv6|3.1, Rule-ID|SV-217021r639663_rule, STIG-ID|JUNI-RT-000150, STIG-Legacy|SV-101037, STIG-Legacy|V-90827, Vuln-ID|V-217021

Plugin: Juniper

Control ID: 3c0087c19305921f7290b8c4f31a77df718ccc75eb9aea6d76d4ef841f054a73