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 Provider Edge (PE) router must be configured to have each Virtual Routing and Forwarding (VRF) instance bound to the appropriate physical or logical interfaces to maintain traffic separation between all Multiprotocol Label Switching (MPLS) layer 3 virtual private networks (L3VPNs).

DISA Rule

SV-283843r1203778_rule

Vulnerability Number

V-283843

Group Title

SRG-NET-000512-RTR-000005

Rule Version

NOKI-RT-000250

Severity

CAT I

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Configure the PE router to have each VRF bound to the appropriate physical or logical interfaces to maintain traffic separation between all MPLS L3VPNs.

Add appropriate physical and logical interfaces to each MPLS L3VPN service, as shown in the example below:

- configure service vprn 30 customer 1 create
- config>service>vprn# interface "TO-CE" create
- config>service>vprn>if# address 172.200.x.x/30
- config>service>vprn>if# sap 1/1/c3/1 create
- config>service>vprn>if>sap# exit
- config>service>vprn>if# exit
- config>service>vprn#

Check Contents

Review the design plan for deploying L3VPN and VRF-lite.

Review all CE-facing interfaces and verify the proper VRF is defined.

Use the command below and verify CE-facing interfaces and the physical ports:

- show router 30 interface "TO-CE"

Interface Table (Service: 30)

Interface-Name Adm Opr(v4/v6) Mode Port/SapId
IP-Address PfxState
-------------------------------------------------------------------------------
TO-CE Up Up/Down VPRN 1/1/c3/1
172.200.200.1/30 n/a
-------------------------------------------------------------------------------
Interfaces : 1

If any VRFs are not bound to the appropriate physical or logical interface, this is a finding.

Vulnerability Number

V-283843

Documentable

False

Rule Version

NOKI-RT-000250

Severity Override Guidance

Review the design plan for deploying L3VPN and VRF-lite.

Review all CE-facing interfaces and verify the proper VRF is defined.

Use the command below and verify CE-facing interfaces and the physical ports:

- show router 30 interface "TO-CE"

Interface Table (Service: 30)

Interface-Name Adm Opr(v4/v6) Mode Port/SapId
IP-Address PfxState
-------------------------------------------------------------------------------
TO-CE Up Up/Down VPRN 1/1/c3/1
172.200.200.1/30 n/a
-------------------------------------------------------------------------------
Interfaces : 1

If any VRFs are not bound to the appropriate physical or logical interface, this is a finding.

Check Content Reference

M

Target Key

5746