Cisco PIX 525 Especificaciones descargar pdf (Pagina 293)

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101

CHAPTER

18-1

Cisco Security Appliance Command Line Configuration Guide

OL-6721-01

Using Modular Policy Framework

This chapter describes how to use Modular Policy Framework to create security policies for TCP and

general connection settings, inspection, and QoS.

The following sections include:

• Overview, page 18-1

• Identifying Traffic Using a Class Map, page 18-2

• Defining Actions Using a Policy Map, page 18-4

• Applying a Policy to an Interface Using a Service Policy, page 18-10

• Direction Policies When Applying a Service Policy, page 18-10

Overview

Modular Policy Framework provides a consistent and flexible way to configure security appliance

features in a manner similar to Cisco IOS software QoS CLI. For example, you can use Modular Policy

Framework to include IP Precedence as one of the criteria to identify traffic for rate-limiting. You can

also create a timeout configuration that is specific to a particular TCP application, as opposed to one that

applies to all TCP applications.

To configure a security feature using Modular Policy Framework, use the class-map, policy-map, and

service-policy global configuration commands.

Modular Policy Framework is supported with these features:

• TCP and general connection settings

• Inspection

• Intrusion Prevention Services

• QoS

Configuring Modular Policy Framework consists of three tasks:

1. Identify a traffic class using the class-map global configuration command.

A traffic class is a set of traffic that is identifiable by its packet content. For example, TCP traffic

with a port value of 23 may be classified as a Telnet traffic class.

2. Create a policy map by associating the traffic class with one or more actions using the policy-map

global configuration command.

An action protects information or resources, or performs a QoS function.

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