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 multicast Rendezvous Point (RP) router must be configured to filter Protocol Independent Multicast (PIM) Register messages received from the Designated Router (DR) for any undesirable multicast groups and sources.

DISA Rule

SV-283865r1203844_rule

Vulnerability Number

V-283865

Group Title

SRG-NET-000019-RTR-000013

Rule Version

NOKI-RT-000470

Severity

CAT III

CCI(s)

• CCI-001414 - Enforce approved authorizations for controlling the flow of information between connected systems based on organization-defined information flow control policies.

Weight

10

Fix Recommendation

Configure the RP router to filter PIM register messages received from a multicast DR for any undesirable multicast groups or sources, as shown in the example below:

Create a prefix-list:

- configure router policy-options
- config>router>policy-options# begin
- config>router>policy-options# prefix-list PIM-JOIN-GROUP
- config>router>policy-options>prefix-list$ prefix 224.0.0.1/32
- config>router>policy-options>prefix-list$ exit

Create a policy statement:

- config>router>policy-options# policy-statement PIM-JOIN-POLICY
- config>router>policy-options>policy-statement$ entry 10
- config>router>policy-options>policy-statement>entry$ from prefix-list "PIM-JOIN-GROUP"
- config>router>policy-options>policy-statement>entry$ action drop
- config>router>policy-options>policy-statement>entry>action$ exit
- config>router>policy-options>policy-statement>entry$ exit
- config>router>policy-options>policy-statement$ default-action accept
- config>router>policy-options>policy-statement>default-action$ exit
- config>router>policy-options>policy-statement$ exit
- config>router>policy-options# commit
- config>router>policy-options# exit all

Apply the policy:

- configure router pim import register-policy "PIM-JOIN-POLICY"

Check Contents

Verify the RP router is configured to filter PIM register messages.

Use the command below to verify the Register Policy:

- show router pim status | match Policy post-lines 1
Policy

Register Policy : PIM-JOIN-POLICY

If the RP router peering with PIM-SM routers is not configured with a PIM import policy to block registration messages for any undesirable multicast groups and sources, this is a finding.

Vulnerability Number

V-283865

Documentable

False

Rule Version

NOKI-RT-000470

Severity Override Guidance

Verify the RP router is configured to filter PIM register messages.

Use the command below to verify the Register Policy:

- show router pim status | match Policy post-lines 1
Policy

Register Policy : PIM-JOIN-POLICY

If the RP router peering with PIM-SM routers is not configured with a PIM import policy to block registration messages for any undesirable multicast groups and sources, this is a finding.

Check Content Reference

M

Target Key

5746