imRAD® was developed by Basein Networks, Inc.[1] and provides the RADIUS(Remote Authentication Dial-In User Service) and DHCPv4/6 server services. RADIUS provides centralized Authentication, Authorization, and Accounting management for users who connect and use a network service and it is the back-end of choice for 802.1X authentication as well[2].
WPA(Wi-Fi Protected Access)-Enterprise is designed for enterprise networks and requires a RADIUS authentication server. This requires a more complicated setup but provides additional security (e.g. protection against dictionary attacks on short passwords).
Various kinds of the Extensible Authentication Protocol (EAP) are used for authentication. WPA-Enterprise mode is available with both WPA and WPA2[3].
You can use the RADIUS service for User Privileged Access of network devices, such as Layer 2, Layer 3 switch, or router. In other words, If a user logs in to a network device, the user is granted not from the local user database but from the imRAD service.
imRAD® also provides the Dynamic Host Configuration Protocol (DHCP) service to dynamically assign IP addresses to DHCP clients. With the DHCP server, you can experience new features such as " Auto Reservation", " Username Reservation", " Cleanup Dormant Reservation", " Force release", and so on.
For more, refer to the RADIUS Overview and DHCP Overview.
File:imRAD_catalogue_eng_v2.pdf