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Inserting a Rule in the Rulebase

The IDP rule-matching algorithm starts from the top of the rulebase and checks traffic against all rules in the rulebase that match the specified match conditions. You determine the sequence in which rules are applied to network traffic by placing them in the desired order. When you add a rule to the rulebase, it is placed at the end of the existing list of rules. To place a rule in any other location than at the end of the rulebase, you insert the rule at the desired location in the rulebase.

Before You Begin
For background information, read: IDP Policies Overview Understanding IDP Policy Rulebases Understanding IDP Policy Rules Establish basic connectivity. For more information, see the Getting Started Guide for your device. Configure network interfaces. See the JUNOS Software Interfaces and Routing Configuration Guide. Define rules in a rulebase. SeeDefining Rules for an IPS Rulebase.

The configuration instructions in this topic describe how to insert rule R2 before rule R1.

You can use either J-Web or the CLI configuration editor to insert a rule.

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