JUNI-RT-000810 - The Juniper multicast Rendezvous Point (RP) router must be configured to limit the multicast forwarding cache so that its resources are not saturated by managing an overwhelming number of Protocol Independent Multicast (PIM) and Multicast Source Discovery Protocol (MSDP) source-active entries - suppress

Information

MSDP peering between networks enables sharing of multicast source information. Enclaves with an existing multicast topology using PIM-SM can configure their RP routers to peer with MSDP routers. As a first step of defense against a denial-of-service (DoS) attack, all RP routers must limit the multicast forwarding cache to ensure that router resources are not saturated managing an overwhelming number of PIM and MSDP source-active entries.

Solution

Configure the router to limit the multicast forwarding cache for source-active entries.

[edit routing-options multicast]
set forwarding-cache threshold suppress 5000 reuse 4000

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Juniper_Router_Y24M07_STIG.zip

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-5, CAT|III, CCI|CCI-002385, Rule-ID|SV-217085r878057_rule, STIG-ID|JUNI-RT-000810, STIG-Legacy|SV-101163, STIG-Legacy|V-90953, Vuln-ID|V-217085

Plugin: Juniper

Control ID: 90abe62a59e150c683948ba0b6a82f41a04d03680168b3ab5601fbf44ccc5d89