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What is a Next Generation Firewall (NGFW)?
While firewalls, which are the basis of a corporate network security strategy, have been around for quite some time, they have evolved significantly as the cyber threat landscape has changed. A next-generation firewall (NGFW) is a firewall designed to protect against the modern cyber threats that companies face. In addition to the core functions of a firewall, NGFWs integrate a range of other capabilities to protect against advanced cyber threats. How an NGFW Works Firewalls define network boundaries. All traffic passing through an NGFW is inspected by that firewall. This inspection allows the firewall to apply security policy rules which permit or block traffic. An NGFW builds on the capabilities of a traditional firewall by incorporating additional features. For example, an NGFW operates at the application layer of the TCP/IP stack to apply intrusion prevention system (IPS), antimalware, sandboxing and other protections. These functions allow an NGFW to identify and block advanced th...
