[Unit]
Description=DHCPv6 Server Daemon
Documentation=man:dhcpd(8) man:dhcpd.conf(5)
After=network.target
After=time-sync.target
After=network-online.target
Wants=network-online.target

[Service]
ExecStart=/usr/sbin/dhcpd -f -s -6 -cf /etc/dhcp/dhcpd.conf -user dhcp -group dhcp --no-pid

[Install]
WantedBy=multi-user.target