Discover ----- Client broadcast the packets
to find the DHCP server
Offer ----- Server offers
Request for IP address ---- Client request
for IP address to the offered server.
Acknowledge ----- Server sends the
Acknowledgement to the client
NACK
-------- If client not get the IP address after server given offer, then Server
sends the Negative Acknowledgement.
DHCP Server uses port no.: 67
DHCP Client uses port no.: 68