root@ubuntu:~# tail -f /var/log/syslog
May 17 13:33:23 ubuntu dhcpd:
May 17 13:33:23 ubuntu dhcpd:
May 17 13:33:23 ubuntu dhcpd: No subnet declaration for eth0 (212.93.136.104).
May 17 13:33:23 ubuntu dhcpd: ** Ignoring requests on eth0.  If this is not what
May 17 13:33:23 ubuntu dhcpd:    you want, please write a subnet declaration
May 17 13:33:23 ubuntu dhcpd:    in your dhcpd.conf file for the network segment
May 17 13:33:23 ubuntu dhcpd:    to which interface eth0 is attached. **
May 17 13:33:23 ubuntu dhcpd:
May 17 13:33:23 ubuntu dhcpd:
May 17 13:33:23 ubuntu dhcpd: Not configured to listen on any interfaces!