JUEX-RT-000090 - The Juniper router configured for MSDP must limit the amount of source-active messages it accepts on per-peer basis.

Information

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.

Solution

Configure the MSDP router to limit the amount of source-active messages it accepts from each peer.

set protocols msdp active-source-limit maximum <1..1000000>
set protocols msdp active-source-limit threshold <1..1000000>
set protocols msdp active-source-limit log-warning <percent to log warning>
<additional configuration>
set protocols msdp peer <address> active-source-limit maximum <1..1000000>
set protocols msdp peer <address> active-source-limit threshold <1..1000000>
set protocols msdp peer <address> active-source-limit log-warning <percent to log warning>

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Juniper_EX_Switches_Y26M01_STIG.zip