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then (Firewall Filters)



Hierarchy Level

Release Information

Statement introduced in Junos OS Release 9.0 for EX Series switches.

inline-monitoring-instance option added in Junos OS Release 19.4R1 on MX Series routers.


Configure a filter action.


actionAction to accept, discard, or forward packets that match all match conditions specified in a filter term.
action-modifiersAdditional actions to analyze, classify, count, or police packets that match all conditions specified in a filter term.

The inline-monitoring-instance action maps the instance for inline monitoring services to the firewall term. You must attach the inline monitoring filter under inet or inet6 family of the logical unit of the interface.

Required Privilege Level

firewall—To view this statement in the configuration.

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