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The Nokia perimeter router must be configured to have Link Layer Discovery Protocols (LLDPs) disabled on all external interfaces and ensure LLDPs are not included in the system level.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-283877NOKI-RT-000590SV-283877r1203880_ruleCCI-002403low
Description
LLDPs are primarily used to obtain protocol addresses of neighboring devices and discover platform capabilities of those devices. Use of Simple Network Management Protocol (SNMP) with the LLDP Management Information Base (MIB) allows network management applications to learn the device type and the SNMP agent address of neighboring devices, enabling the application to send SNMP queries to those devices. LLDPs are also media and protocol independent as they run over the data link layer; therefore, two systems that support different network-layer protocols can still learn about each other. Allowing LLDP messages to reach external network nodes is dangerous as it provides an attacker a method to obtain information about the network infrastructure that can be useful to plan an attack.
STIGDate
Nokia Service Router OS 25.x Router Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) 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.

NET-03Boundary Protection
0.50
NET-04.1Deny Traffic by Default & Allow Traffic by Exception
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (8) 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.

CM-6Configuration Settings
1.00
SC-24Fail in Known State
1.00
SC-47Alternate Communications Paths
1.00
SC-5Denial-of-service Protection
1.00
SC-7Boundary Protection
1.00
SC-7(11)Restrict Incoming Communications Traffic
1.00
SC-7(29)Separate Subnets to Isolate Functions
1.00
SC-7(5)Deny by Default — Allow by Exception
1.00
CCI1 mapping
CCI-002403
1.00

Details

Check Text (C-283877r1203880_chk)

This requirement is not applicable for the DODIN Backbone. Review all router configurations to ensure LLDPs are not included in the global configuration or LLDPs are not included for each active external interface. Verify LLDP "Admin Enabled" sis et to "False" in the system level using the command below: - show system lldp | match "Admin Enabled" Admin Enabled : False Verify LLDP is in "Admin State" and set to "disabled" for all active external ports using the command below: - show port 1/1/c2/1 ethernet lldp | match "Admin State" Admin State : disabled Notifications : Disabled Admin State : disabled Notifications : Disabled Admin State : disabled Notifications : Disabled If LLDPs are configured on the system and any external interface, this is a finding.

Fix Text (F-88347r1203879_fix)

This requirement is not applicable for the DODIN Backbone. Disable LLDP on the system level using the command below: - configure system lldp shutdown Disable LLDP on the port using the command below: - configure port 1/1/c2/1 - config>port# ethernet lldp dest-mac nearest-bridge admin-status disabled - config>port# exit all