Catalyst Switch

Implementing a Cisco IOS Zone Based Firewall

Traditionally, Cisco IOS Firewalls were configured as an inspection rule only on interfaces. This has changed, however, with the introduction of zone-based firewalls. This section examines the Cisco IOS unidirectional firewall policy between groups of interfaces known as zones and shows you how to configure a Cisco IOS zone-based policy firewall. The Cisco IOS classic firewall, formerly known as Context-Based Access Control (CBAC), is one of the key feature sets of the Cisco IOS Firewall. This...