A security engineer must recommend a network edge device for a branch office. Management wants a single appliance that not only performs stateful packet filtering but can also automatically block attacks using an integrated intrusion prevention system. Which firewall type best satisfies these requirements?
A next-generation firewall (NGFW) combines traditional stateful packet inspection with application awareness and an embedded intrusion prevention system (IPS). This allows the device to identify, block, and log malicious traffic in real time. WAFs specialize in HTTP/S protection, Layer 7 firewalls add deep packet inspection but may lack a full IPS, and basic Layer 4 firewalls are limited to port- and protocol-based filtering.
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What is the difference between a traditional firewall and an NGFW?
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What role does an IPS play in an NGFW?
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How does an NGFW enhance security compared to Layer 4 and Layer 7 firewalls?