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The Nokia router must be configured to have Address Resolution Protocol (ARP) Learn Unsolicited disabled on all external interfaces.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-283861NOKI-RT-000430SV-283861r1203832_ruleCCI-002385medium
Description
ARP Learn Unsolicited 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 ARP Learn Unsolicited message can cause network mapping information to be stored incorrectly, causing network malfunction.
STIGDate
Nokia Service Router OS 25.x Router Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (13) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

MON-01Continuous Monitoring
1.00
MON-01.1Intrusion Detection & Prevention Systems (IDS & IPS)
1.00
MON-01.3Inbound & Outbound Communications Traffic
1.00
MON-01.4System Generated Alerts
1.00
MON-01.8Security Event Monitoring
1.00
NET-01Network Security Controls (NSC)
1.00
NET-02Layered Network Defenses
1.00
SEA-01Secure Engineering Principles
1.00
SEA-02Alignment With Enterprise Architecture
1.00
CAP-01Capacity & Performance Management
0.50

+3 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (36) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-17(9)Disconnect or Disable Access
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-4Information Flow Enforcement
1.00
AC-6(9)Log Use of Privileged Functions
1.00
AU-12Audit Record Generation
1.00
AU-3Content of Audit Records
1.00
AU-5Response to Audit Logging Process Failures
1.00
CM-11(2)Software Installation with Privileged Status
1.00

+26 more (top 10 by confidence shown)

CCI1 mapping
CCI-002385
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-01
1.00
PR.IR-01
1.00
PR.IR-04
0.50

Who does this work

12 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-283861r1203832_chk)

Review the configuration to determine if ARP Learn Unsolicited is disabled on all external interfaces. Use the command below to verify the "ARP Learn Unsoli*" field for each configured interface is "Disabled": - show router interface "TO-CE" detail | match "ARP Learn Unsoli*" ARP Learn Unsoli*: Disabled ND Learn Unsolici*: None If ARP Learn Unsolicited is enabled on any external interface, this is a finding.

Fix Text (F-88331r1203831_fix)

Disable ARP Learn Unsolicited on all external interfaces, as shown in the example below: - configure router interface "TO-PE2" no arp-learn-unsolicited Note: By default, arp-learn-unsolicited is disabled to deny GARP messages.