Firewalls and network security11/2/2023 ![]() ![]() Organizations using PEF technology can implement a Zero Trust access model that uses identity, traffic attributes, and other context to centrally enforce access privileges at the time of an initial connection. PEF is a proven technology that runs on over 4 million installations worldwide. The Aruba Policy Enforcement Firewall (PEF) provides identity-based controls to enforce application-layer security and prioritization. ![]() With hybrid work, mobility, and IoT adoption on the rise, network firewalls that use rules and physical network configuration based on IP addresses are no longer adequate. Not all network firewalls are created equal. The ability to gather more information allows advanced network firewalls to provide finer traffic controls and more detailed accounting. The more advanced the network firewall security technology, the more and higher order layers that can be examined. ![]() TCP/IP layers guide movement of data from origin to destination. Network firewalls examine data within the four Transmission Control Protocol/Internet Protocol (TCP/IP) communication layers: (from highest to lowest) application, transport, IP/network, and hardware/data link. Mechanisms can be defined policies, allow/deny rulesets, and other guidelines that specify how traffic should be treated based on its characteristics. Network firewalls enforce policy based on access control mechanisms. and the globally recognized Payment Card Industry Data Security Standard (PCI DSS). Network firewall security is often required to achieve security, privacy, and compliance mandates, such as the Federal Information Security Modernization Act (FISMA) in the U.S. After analyzing the characteristics of the traffic, the network firewall blocks or allows traffic based on established firewall policy. Network firewalls analyze inbound and outbound network traffic, checking for IP address, communication protocols, content type, and other traffic characteristics.
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