Binary package “dhcpcd” in ubuntu lunar

DHCPv4 and DHCPv6 dual-stack client (init.d script and systemd unit)

 dhcpcd provides seamless IPv4 and IPv6 auto-configuration.
 .
 This package provides the optional init.d script and systemd units.
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 It can be safely purged on systems where interfaces are configured
 by ifupdown via </etc/network/interfaces> using the DHCP method with
 binaries provided by dhcpcd-base.