Chapter 3

Cisco PIX Firewall

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 ...

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