What's the meaning of this sentence "Note Whenever possible, the same ip address is given out to each client (OWNER/INFO pair). " which I estreat from the this link http://wiki.mikrotik.com/wiki/Pools

If client acquired the address before - IP and MAC exist in the pool - DHCP will check if address is still available and if it is offer it to the client.

PS.: Server Conflict Detection @: http://technet.microsoft.com/en-us/libr ... S.10).aspx