The final section of this chapter describes the Cisco IOS Firewall suite which can also be used to protect the data plane. While most network environments typically employ dedicated appliances, such as the Cisco Adaptive Security Appliance (ASA) Firewall and a Network-based Intrusion Prevention System (NIPS) such as the Cisco IPS 4200 Sensors, Cisco IOS software also provides in-built firewall and intrusion prevention capabilities with which, as a network engineer, you should be familiar with.
The Cisco IOS Firewall suite provides a single point of protection at the network perimeter, making security policy enforcement and inherent component of . . .
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