STIGQter: STIG Summary: Nokia Service Router OS 25.x Router Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 28 Apr 2026:

The Nokia router must be configured to enforce approved authorizations for controlling the flow of information within the network based on organization-defined information flow control policies.

DISA Rule

SV-283881r1203892_rule

Vulnerability Number

V-283881

Group Title

SRG-NET-000018-RTR-000001

Rule Version

NOKI-RT-000630

Severity

CAT II

CCI(s)

• CCI-001368 - Enforce approved authorizations for controlling the flow of information within the system based on organization-defined information flow control policies.

Weight

10

Fix Recommendation

This requirement is not applicable for the DODIN Backbone.

Configure a filter to allow or deny traffic for specific source and destination addresses as well as ports and protocols, as shown in the example below:

Create a port list:

- configure filter match-list port-list Filter-Server-Port-list create
- config>filter>match-list>port-list$ port 515
- config>filter>match-list>port-list$ port 631
- config>filter>match-list>port-list$ port 9100
- config>filter>match-list>port-list$ exit

Create an IPv4 filter:

- configure filter ip-filter 20 create
- config>filter>ip-filter$ entry 10 create
- config>filter>ip-filter>entry$ match protocol "tcp"
- config>filter>ip-filter>entry>match$ dst-ip 10.23.1.0/24
- config>filter>ip-filter>entry>match$ dst-port port-list "Filter-Server-Port-list"
- config>filter>ip-filter>entry$ action forward
- config>filter>ip-filter$ entry 20 create
- config>filter>ip-filter>entry$ match protocol "tcp"
- config>filter>ip-filter>entry>match$ dst-ip 10.23.2.0/24
- config>filter>ip-filter>entry>match$ dst-port port-list "Filter-Server-Port-list"
- config>filter>ip-filter>entry>match$ exit
- config>filter>ip-filter>entry$ action forward
- config>filter>ip-filter$ entry 30 create
- config>filter>ip-filter>entry$ match protocol "icmp"
- config>filter>ip-filter>entry>match$ exit
- config>filter>ip-filter>entry$ action forward
- config>filter>ip-filter>entry$ exit
- config>filter>ip-filter$ entry 40 create
- config>filter>ip-filter>entry$ match protocol "ospf-igp"
- config>filter>ip-filter>entry>match$ exit
- config>filter>ip-filter>entry$ action forward
- config>filter>ip-filter>entry$ exit
- config>filter>ip-filter$ default-action drop
- config>filter>ip-filter$ exit all

Apply the IPv4 filter on the interface:

- configure router interface "TO-PE2" ingress filter ip 20

Check Contents

This requirement is not applicable for the DODIN Backbone.

Review the router configuration to verify access control lists (ACLs) and filters are configured to allow or deny traffic for specific source and destination addresses as well as ports and protocols.

Verify the IPv4 filter is applied on the interface using the command below:

- show router interface "TO-PE2" detail | match "Ingress Filter"

Egress Filter : none Ingress Filter : 20

If the router is not configured to enforce approved authorizations for controlling the flow of information within the network based on organization-defined information flow control policies, this is a finding.

Vulnerability Number

V-283881

Documentable

False

Rule Version

NOKI-RT-000630

Severity Override Guidance

This requirement is not applicable for the DODIN Backbone.

Review the router configuration to verify access control lists (ACLs) and filters are configured to allow or deny traffic for specific source and destination addresses as well as ports and protocols.

Verify the IPv4 filter is applied on the interface using the command below:

- show router interface "TO-PE2" detail | match "Ingress Filter"

Egress Filter : none Ingress Filter : 20

If the router is not configured to enforce approved authorizations for controlling the flow of information within the network based on organization-defined information flow control policies, this is a finding.

Check Content Reference

M

Target Key

5746