DHCP
From FreeRADIUS Wiki
The Dynamic Host Configuration Protocol (DHCP) is an Internet protocol for automating the configuration of computers that use TCP/IP. DHCP can be used to automatically assign IP addresses, to deliver TCP/IP stack configuration parameters such as the subnet mask and default router, and to provide other configuration information such as the addresses for printer, time and news servers.
The DHCP protocol is generally used on Ethernet and Ethernet-like networks (eg. WiFi) and should not be confused with assigning a dynamic IP address via some other method like PPP dialup.
FreeRADIUS has the ability to assign dynamic IP address to PPP users by using an IP Pool but does not currently include support the the DHCP protocol.
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