The Nokia Multicast Source Discovery Protocol (MSDP) router must be configured to limit the amount of source-active messages it accepts on a per-peer basis.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-283834 | NOKI-RT-000160 | SV-283834r1203751_rule | CCI-001368 | low |
| Description | ||||
| To reduce any risk of a denial-of-service (DoS) attack from a rogue or misconfigured MSDP router, the router must be configured to limit the number of source-active messages it accepts from each peer. | ||||
| STIG | Date | |||
| Nokia Service Router OS 25.x Router Security Technical Implementation Guide | 2026-06-15 | |||
Details
Check Text (C-283834r1203751_chk)
Review the Nokia router configuration to determine if the "SA Limit" has been configured to limit the number of source-active messages it accepts on a per-peer basis.
Verify the source-active limit, as shown in the example below:
- show router msdp status | match "SA Limit"
SA Limit : 2
SA Limit Excd : 0
If the router is not configured to limit the source-active messages it accepts, this is a finding.
Fix Text (F-88304r1203750_fix)
Configure the MSDP router to limit the amount of source-active messages it accepts from each peer.
Configure the active-source limit, as shown in the example below:
- configure router msdp active-source-limit 2