dhcp -- A DHCP (Dynamic Host Configuration Protocol) server and relay agent.
http://isc.org/products/DHCP/
DHCP (Dynamic Host Configuration Protocol) is a protocol which allows
individual devices on an IP network to get their own network configuration
information (IP address, subnetmask, broadcast address, etc.) from a DHCP
server. The overall purpose of DHCP is to make it easier to administer
a large network. The dhcp package includes the ISC DHCP service and
relay agent.
To use DHCP on your network, install a DHCP service (or relay agent),
and on clients run a DHCP client daemon. The dhcp package provides the
ISC DHCP service and relay agent.