I have dhcp-3.0.2. I would clean dhcpd.leases file. For example I would delete these informations: lease 192.168.26.163 { starts 5 2008/01/25 08:24:00; ends never; tstp 2 2038/01/19 03:14:07; binding state active; next binding state free; hardware ethernet 00:14:38:4a:d4:91; } How can I do this? Thanks Andrea