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then (Firewall Filters)



Hierarchy Level

Release Information

Statement introduced in Junos OS Release 9.0.

inline-monitoring-instance option added in Junos OS Release 19.4R1 on MX Series routers with MPCs excluding MPC10E and MPC11E linecards.


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 for applying inline monitoring on the ingress or egress direction.

Required Privilege Level

firewall—To view this statement in the configuration.

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