Where is host IP address stored in server and How to set expire option??

[shweta jogi]

Hi,
	I have seen the code of dhcp server. I have seen that there is one
hash table maintained lease_ip_addr_hash. But I didn't find fixed address in
that list. Then where is it???
	And how to set expire option in either client side or server side
what happen when lease is expired?


Thanks and Regards,
Tina