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) Join messages received from the Designated Router (DR) for any undesirable multicast groups.

DISA Rule

SV-283864r1203841_rule

Vulnerability Number

V-283864

Group Title

SRG-NET-000019-RTR-000014

Rule Version

NOKI-RT-000460

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 routers peering with customer PIM-SM routers to implement a PIM import policy to block join messages for reserved and any undesirable multicast groups, 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 join-policy "PIM-JOIN-POLICY"

Check Contents

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

Use the command below to verify the join policy:

- show router pim status | match Policy
Policy
Join 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-283864

Documentable

False

Rule Version

NOKI-RT-000460

Severity Override Guidance

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

Use the command below to verify the join policy:

- show router pim status | match Policy
Policy
Join 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