The router offers an embedded DHCP server, known as the DHCP local server. The DHCP local server has two modes: equal-access and standalone.
Note: E-series routers also support an embedded DHCP version 6 (DHCPv6) local server. The DHCPv6 local server provides a subset of the features of the DHCP local server. For information about configuring the DHCPv6 local server, see Configuring the DHCPv6 Local Server.
DHCP local server also supports RADIUS accounting, including interim accounting, in standalone mode. This feature allows you to use RADIUS start and stop attributes to track user events such as the lifetime of an IP address.
You can use DHCP to configure the router to allow remote access to non-PPP clients. DHCP-based access is also an alternative to PPP in environments such as Public Wireless LANs (PWLANs). In PWLANS, a user scans for available broadband networks, then is redirected to a web-based authentication mechanism to request service.
DHCP provides address assignment information for users. Authentication, authorization, and accounting are separate processes, and are up to the Internet service provider (ISP) to define.
The DHCP local server can configure a client with the following DHCP options:
For additional information on managing client bindings, see Viewing and Deleting DHCP Client Bindings.