Chapter 12. Configuring Zone-Based Firewalls

This chapter covers the following topics:

Firewall Fundamentals

Types of Firewalls

Firewall Design

Firewall Policies

Firewall Rule Design Guidelines

Cisco IOS Firewall Evolution

Cisco IOS Zone-Based Policy Firewall

Cisco Common Classification Policy Language

Zone-Based Policy Firewall Design Considerations

Default Policies, Traffic Flows, and Zone Interaction

Configuring an IOS ZFW

Configuring an IOS ZFW Using the CLI Example

Configuring an IOS ZFW Using CCP Example

Configuring NAT Services for ZFWs Using CCP Example

Firewall Fundamentals

A firewall is a software or hardware system that acts as a barrier between an internal (trusted) network and an external (untrusted) network. ...

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