Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


syn-fin (IDS Screen Next Gen Services)


Hierarchy Level


Identify and drop packets that have both the SYN and FIN flags set, which can cause unpredictable behavior.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 19.3R2.