unknown-protocol (IDS Screen Next Gen Services)
Statement introduced in Junos OS Release 19.3R2 on MX Series routers (MX240, MX480 and MX960) running Next Gen Services with the MX-SPC3 services card.
Identify and drop IP frames with protocol numbers greater than 137 for IPv4 and 139 for IPv6, which protects against IP unknown protocol attacks.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.