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The required dual homed DISN Core or NIPRNet access circuits must follow geographically diverse paths from the CER(s) along the entire route to the geographically diverse SDNs.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-259917SRG-VOIP-000370SV-259917r1153452_ruleCCI-001548medium
Description
One way to provide the greatest reliability and availability for DISN services is to provide redundancy in the network pathways between the customer site and the redundant DISN SDNs. The DISN core network is designed to be highly reliable and available in support of the DOD mission. The most vulnerable part of the network is the access circuit from the enclave to the core and the path it takes from the SDN to the customer's site. Therefore, redundant access circuits should be provisioned. Physical pathways for communications network access circuits are vulnerable to physical disruption from a variety of threats, both natural and manmade. These threats range from storm damage (falling trees, floods) to being damaged through digging, downed utility poles, or malicious acts, including war and terrorism. To overcome the physical threat, the redundant circuits should follow geographically diverse paths.
STIGDate
Enterprise Voice, Video, and Messaging Policy Security Requirements Guide2025-12-23

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (17) 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.

AST-04Network Diagrams & Data Flow Diagrams (DFDs)
1.00
AST-04.2Control Applicability Boundary Graphical Representation
1.00
CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
DCH-01Data Protection
1.00
DCH-19Geographic Location of Data
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
IAC-21Least Privilege
1.00

+7 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (1) 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-4Information Flow Enforcement
1.00
NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) 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.

3.1.3
1.00
CCI1 mapping
CCI-001548
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (4) 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-09
1.00
ID.AM-03
1.00
PR.DS-10
1.00
PR.IR-01
1.00

Who does this work

18 NICE work roles and 10 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-259917r1153452_chk)

Inspect the documentation for the pathways taken by the access circuits to determine compliance with the requirement. Obtain the pathway documentation for the facilities on-site. Additionally, obtain information from the DISN core PMO and/or local carrier of the access circuits for the pathways off-site. Verify the ISSO maintains a copy for future inspections. Changes to the pathways must also be recorded and maintained. If the required dual-homed circuits follow the same path or are close enough anywhere along their length to be damaged by a single event, this is a finding.

Fix Text (F-63555r946671_fix)

Ensure dual-homed DISN Core or NIPRNet access circuits follow geographically diverse paths from the CER(s) along the entire route to the geographically diverse SDNs. Ensure each circuit uses different facilities such as cables, demarks, and digital cross connects in geographically diverse locations. Ensure geographic and facilities information is maintained on-site and off-site. Ensure the paths taken by the access circuits remain significantly separate along their entire length so that a single point of failure is not created.