lepetika:/var/log# cat /var/log/daemon.log | grep " DHCPREQUEST" | awk '{print $10}' | sort | uniq -w15 -c | sort -g -r
    159 10.47.239.29
     26 00:13:8f:80:9f:44
     22 00:14:a5:40:31:72
     17 00:50:8d:e3:d3:a4
     15 10.71.239.29
     10 from
      1 255.255.255.255
      1 00:14:22:b9:4b:5b
      1 00:00:f0:75:23:df