Step-by-step explanation:
Newer generation firewalls differ from older generation firewalls in several key aspects.
Firstly, older generation firewalls primarily focus on packet-filtering techniques, which examine individual packets of data based on predetermined rules and criteria. This approach is based on the source and destination IP addresses, port numbers, and protocol types. However, newer generation firewalls, known as Next-Generation Firewalls (NGFW), employ more advanced techniques such as deep packet inspection (DPI). DPI allows the firewall to analyze the content within the packets, including inspecting the payload and application layer data, enabling better identification and blocking of malicious traffic.
Secondly, NGFWs incorporate advanced intrusion prevention systems (IPS) capabilities. Unlike traditional firewalls that simply allow or block traffic based on predefined rules, NGFWs can actively detect and prevent network attacks by inspecting traffic for known attack patterns, signatures, and behaviors. By combining traditional firewall functionality with IPS capabilities, NGFWs offer enhanced protection against sophisticated threats.
Another significant difference is the inclusion of application-awareness in NGFWs. Older firewalls primarily focus on network-level policies, whereas NGFWs can identify and control specific applications and their associated behaviors. This application-level visibility allows administrators to set more granular policies based on individual applications and user activities, providing better control over network traffic and reducing the risk of data breaches or misuse of resources.
Furthermore, newer-generation firewalls often incorporate advanced threat intelligence capabilities, leveraging real-time threat feeds and machine learning algorithms to identify and block emerging or unknown threats based on behavioral patterns. This proactive approach enhances the overall security posture by detecting and responding to threats before they can cause significant damage.
Lastly, NGFWs often provide additional features such as VPN support, web filtering, user authentication, and advanced reporting and logging functionalities. These features enhance the overall security and monitoring capabilities of the firewall, providing organizations with better visibility and control over their network traffic.
In summary, newer generation firewalls differ from older generation firewalls by incorporating advanced techniques such as deep packet inspection, intrusion prevention systems, application awareness, advanced threat intelligence, and additional security features. These advancements provide organizations with better protection against evolving threats and allow for more granular control and visibility into network traffic.