ISC DHCP server for automatic IP address assignment
This is the server from the Internet Software Consortium's implementation of DHCP. For more information, visit http://www.isc.org.
Dynamic Host Configuration Protocol (DHCP) is a protocol like BOOTP (actually dhcpd includes much of the functionality of bootpd). It gives client machines "leases" for IP addresses and can automatically set their network configuration.
This server can handle multiple ethernet interfaces.