for auditing purpouses I urgently need to check what is the ip lease time history of a dhcp address.
the aim is know when exactly that dhcp address is being used on a computer, the date it has been release at the first time.
The DHCP service is set to lease the ip every 8 hours, so the first assigment date has been lost from the client and server side.
From the DHCP console there is any useful info, i don't think is also possible read the dhcp database? any idea?
Thanks in advance. Andrea
Looking to my ip address lease time i see that
Lease Obtained. . . . . . . . . . : 2009-02-16 16:16
Lease Expires . . . . . . . . . . : 2009-02-17 02:16
but indeed i'm using the same ip address since week. what is the date of the first assignment? how to check that?