802.1X and NAC: Best Practices for Effective Network Access Control


802.1X provides an authentication mechanism for devices and users attempting to connect to wired and wireless LANs. Network Access Control (NAC) solutions provide both authentication of users and devices – much like 802.1X – as well as validation of the security posture of devices attempting to connect to a network.

There is often confusion between the functions and benefits of 802.1X vs. NAC solutions. This paper explores the fundamentals of 802.1X and NAC technologies, and explains why a combination of both is often required to provide the level of security, control and visibility needed in today’s networks.

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