We requires to exhaust DHCP server for multiple reasons i.e check its limit or some other purpose. Kali linux provide a great tool to exhaust DHCP server – DHCPig.
How to exhaust DHCP server?
In Kali linux open terminal and simply run below command:-
Once done this tool will start sending DHCP request on mentioned interface with different Mac address until DHCP server stop responding.
Once DHCP server is exhausted it will stop. It depend upon DHCP server when will it refill, most of the DHCP server release IP after 4hrs..