Managing Cisco Network Security, 2nd Edition

Chapter 3

Cisco PIX Firewall

Solutions in this chapter:

■ Overview of the Security Features

■ Initial Configuration

■ The Command-Line Interface

■ Configuring NAT and PAT

■ Security Policy Configuration

■ PIX Configuration Examples

■ Securing and Maintaining the PIX

☑ Summary

☑ Solutions Fast Track

☑ Frequently Asked Questions

Introduction

A firewall can be described as a security mechanism located on a network that protects resources from other networks and individuals. It controls access to a network and enforces a security policy that can be tailored to suit the needs of a company.

There is some confusion on what the difference is between a Cisco PIX firewall and a router. Both devices are capable of filtering traffic with access control lists, and both ...