Why is the default lease-time set to only 10 minutes (600 seconds) in /etc/dhcp/dhcpd.conf (CentOS-6.2) as distributed? Why is not set to a much longer time? Is there any disadvantage in doing that? Or conversely, is a short lease-time safer in some way? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College Dublin