Configuring Junos OS Filter Conditions (C-Web Interface)
To configure traffic match conditions in Junos OS filter policy rules:
In the side pane, select a Junos OS filter policy rule.
From the Create new list, select Traffic Condition. Type a name for the traffic condition, and click OK.
In the side pane, expand the traffic condition, and select Traffic Match Condition.
Click Create, enter information as described in the Help text in the main pane, and click Apply.