About the DHCP Relay Agent

You can configure a DHCP relay agent to forward DHCP requests received on an interface to one or more DHCP servers. DHCP clients use UDP broadcasts to send their initial DHCPDISCOVER messages because they do not have information about the network to which they are attached. If the client is on a network segment that does not include a server, UDP broadcasts normally are not forwarded by the threat defense device because it does not forward broadcast traffic. The DHCP relay agent lets you configure the interface of the threat defense device that is receiving the broadcasts to forward DHCP requests to a DHCP server on another interface.