PacketFence

Open-Source Network Access Control (NAC)

PacketFence is an open-source Network Access Control (NAC) system designed to manage device access across wired and wireless networks. It provides features such as device registration, network segmentation, policy enforcement, and rogue device detection. By integrating with switches, wireless controllers, and directory services, PacketFence allows organizations to control which endpoints are allowed on the network, what level of access they receive, and how they are monitored over time. The platform’s web-based administration interface offers visibility into connected endpoints and supports automated responses to suspicious activity.

PacketFence is well-suited for environments where diverse and unmanaged devices connect regularly, such as enterprise offices, universities, healthcare environments, and guest network deployments. It supports 802.1X, MAC authentication, and captive portals, enabling both transparent and user-driven authentication workflows. This helps security teams prevent unauthorized access and reduce risks from compromised or unknown devices on internal networks. PacketFence also integrates with intrusion detection systems to quarantine devices automatically when malicious behavior is detected.

At Cygeta, PacketFence is often part of broader Security Architecture & Control Planning, Infrastructure Penetration Testing, and Security Program Roadmap engagements. NAC plays a critical role in limiting lateral movement and enforcing least-privilege access across internal networks. Implementing PacketFence effectively requires strong network visibility and policy alignment, which we assist clients with to ensure their network remains secure and adaptive to operational needs.

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