Chapter 3 ACS 5.x Policy Model

Service Selection Policy

In this example, instead of creating the network access policy for 802.1x, agentless devices, and guest access in one access service, the policy is divided into three access services.

First-Match Rule Tables

ACS 5.3 provides policy decisions by using first-match rule tables to evaluate a set of rules. Rule tables contain conditions and results. Conditions can be either simple or compound. Simple conditions consist of attribute operator value and are either True or False. Compound conditions contain more complex conditions combined with AND or OR operators. See Policy Conditions, page 3-16for more information.

The administrator selects simple conditions to be included in a policy. The conditions are displayed as columns in a rule table where the column headings are the condition name, which is usually the name of the attribute.

The rules are displayed under the column headings, and each cell indicates the operator and value that are combined with the attribute to form the condition. If ANY Figure 3-1shows a column-based rule table with defined condition types.

Figure 3-1 Example Policy Rule Table

 

User Guide for Cisco Secure Access Control System 5.3

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OL-24201-01

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Cisco Systems OL-24201-01 manual First-Match Rule Tables, Example Policy Rule Table