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 Designated Router (DR) must be configured to limit the number of mroute states resulting from Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Host Membership Reports.

DISA Rule

SV-283857r1203820_rule

Vulnerability Number

V-283857

Group Title

SRG-NET-000362-RTR-000122

Rule Version

NOKI-RT-000390

Severity

CAT II

CCI(s)

• CCI-002385 - Protect against or limit the effects of organization-defined types of denial of service events.

Weight

10

Fix Recommendation

Configure the DR on a global or interface basis to limit the number of mroute states resulting from IGMP or MLD membership reports, as shown in the example below:

- configure router igmp interface "TO-CE" max-groups 200
- configure router mld interface "TO-CE" max-groups 200

Check Contents

Review the DR configuration to verify it is limiting the number of mroute states via IGMP or MLD.

Verify the maximum number of IGMP or MLD groups and maximum group sources is configured using the command below:

- show router igmp interface "TO-CE" detail | match "Max Groups Allowed"
Max Groups Allowed : 200 Max Groups Till Now: 0

- show router mld interface "TO-CE" detail | match "Max Groups Allowed"
Max Groups Allowed : 200 Max Groups Till Now: 0

Note: If both global and per-interface state limiters are configured, the limits configured for per-interface state limiters are still enforced but are constrained by the global limit.

If the DR is not limiting multicast join requests via IGMP or MLD on a global or interface basis, this is a finding.

Vulnerability Number

V-283857

Documentable

False

Rule Version

NOKI-RT-000390

Severity Override Guidance

Review the DR configuration to verify it is limiting the number of mroute states via IGMP or MLD.

Verify the maximum number of IGMP or MLD groups and maximum group sources is configured using the command below:

- show router igmp interface "TO-CE" detail | match "Max Groups Allowed"
Max Groups Allowed : 200 Max Groups Till Now: 0

- show router mld interface "TO-CE" detail | match "Max Groups Allowed"
Max Groups Allowed : 200 Max Groups Till Now: 0

Note: If both global and per-interface state limiters are configured, the limits configured for per-interface state limiters are still enforced but are constrained by the global limit.

If the DR is not limiting multicast join requests via IGMP or MLD on a global or interface basis, this is a finding.

Check Content Reference

M

Target Key

5746