[libvirt-users] dhcpd (via systemd) @boottime which does not wait for the interface..

hi users I have my dhcpd to serve nothing but virbr0 (libvirt), OS is Centos 7.2 Dhcpd would not start, complaining like this: No subnet declaration for virbr0 (no IPv4 addresses). ** Ignoring requests on virbr0.  If this is not what    you want, please write a subnet declaration    in your dhcpd.conf file for the network segment    to which interface virbr0 is attached. ** ##SELECTION_END## and systemctl -l shows: ... systemd[1]: start request repeated too quickly for dhcpd.service ... but suffice to restart dhcpd and all works! I'v customized systemd's service conf, I've put: After=libvirtd.service Requisite=libvirtd.service but this did not help. Would you share your thoughts? Systemd list say it's libvirt (wrong)doing. many thanks. L.