Deploying Zone-Based Firewalls

Chapter 4. Case Study: Firewall with a Perimeter Network

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• Configuring the Firewall Policy 56

• Protecting the Router 60

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In the preceding chapter, you saw the mandatory configuration commands used to configure the zone-based policy firewall feature of Cisco IOS. In this chapter, we use those commands to develop a complete configuration of a firewall with a perimeter network shown in Figure 4-1. The policy rules used by this firewall are documented in Table 2-3 (Restrictive Policy of a Firewall with a Perimeter Network) of Chapter 2 “Typical Zone-Based Firewall Designs.”,

Figure 4-1. Firewall with a perimeter network ...