Configure Leasetime

[Chinmaya S. Narayana Reddy]

Hi,
I have to configure leasetime for each device, if the device is not
configured,
then I would like to use a default/global value.

To achieve this I tried following configuration

--- dhcpd.conf ---
default-lease-time 3600; # one hour lease
max-lease-time 864000; # 7days

host MACADDRESS {
    ...
    option dhcp-lease-time 86400; # 1day
}


When I boot my device, 1 hour lease is given out, I expected 1day.

I tried this one too (eliminating default-lease-time statement)
--- dhcpd.conf ---
max-lease-time 864000; # 7days

host MACADDRESS {
    ...
    option dhcp-lease-time 86400; # 1day
}


Now my device gets 12hours lease.


Can anyone please tell me how I can configure this?

--
thanks
chinmaya swaroop