Introduction to the Cisco IOS Firewall Feature Set
The IOS Firewall is a straightforward product. It is simply firewall services that you can enable on an IOS router. Cisco's idea was to take the functionality of the PIX Firewall and enable the PIX Firewall functions on an IOS router. This is the essence of the IOS Firewall, PIX Firewall functionality without the need for a PIX Firewall.
The IOS Firewall consists of three separate functional components: CBAC, intrusion detection, and authentication proxy. We briefly introduce intrusion detection and authentication proxy in this chapter, but fully discuss these features in chapters 6 and 7, respectively.
CBAC
As stated earlier, CBAC is an integral part of the Cisco IOS Firewall feature set and ...
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