ii  dhcp3-server                           4.1.ESV-R4-0ubuntu5.9                   ISC DHCP server (transitional package)
ii  isc-dhcp-client                        4.1.ESV-R4-0ubuntu5.9                   ISC DHCP client
ii  isc-dhcp-common                        4.1.ESV-R4-0ubuntu5.9                   common files used by all the isc-dhcp* packages
ii  isc-dhcp-server                        4.1.ESV-R4-0ubuntu5.9                   ISC DHCP server for automatic IP address assignment