starts 5 2008/04/18 06:42:19;
ends 5 2008/04/18 18:42:19;
hardware ethernet 00:11:22:33:44:55;
uid 01:00:11:22:33:44:55;
client-hostname "nomdemachine";
less /var/lib/dhcp/dhcpd.leases | grep -B5 nomdemachine | grep lease | cut -d " " -f2