From the course: CompTIA SecurityX (CAS-005) Cert Prep

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Network access control (NAC)

Network access control (NAC)

From the course: CompTIA SecurityX (CAS-005) Cert Prep

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Network access control (NAC)

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- Network Admission Control, or NAC as it's called, was originally a Cisco initiative. Cisco doesn't call it NAC anymore, they have other words for it, and there's other companies, like Microsoft for example, that have something similar, but they don't call it NAC. We often hear this as PNAC, or Port-based Network Access Control, built on IEEE 802.1X. So it's a security initiative that's quite common that verifies and grants access to devices and users who are trying to connect to a network, either wired and-or wireless network. It enforces policies based on various criteria, such as the device type, user identity, security status, often using some type of extensible authentication protocol, some type of EAP, like EAP-TLS or protected EAP, or, in a Cisco environment, something like EAP-FAST. By examining and managing each device, NAC can block unauthorized access, or it can place that device into certain types of VLANs or restricted zones or sandbox environments to reduce security…

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