What is the function of RADIUS in a wireless network?

RADIUS, which stands for Remote Authentication Dial-In User Service, plays a crucial role in wireless networks primarily by authenticating users and authorizing access. When a device attempts to connect to the network, RADIUS verifies the user's credentials, such as username and password, against a database. If the credentials are valid, RADIUS grants the user permission to access the network resources.

This process is critical for maintaining network security, as it ensures that only authorized users can connect to the wireless network. Additionally, RADIUS can assign specific network permissions and account for different levels of access based on the user's role or identity, further enhancing security management.

The function of RADIUS does not involve routing traffic, managing DHCP settings, or encrypting data transmission directly. While RADIUS can help in establishing secure connections and can work in conjunction with protocols that encrypt data, its primary purpose remains focused on authentication and authorization tasks within the network.