To assign an IP address to the host dynamically, DHCP client exchange DHCP messages with DHCP server in DORA process. Whenever a computer or different networked device connects to a network, the DHCP patron software program sends a broadcast question soliciting for important statistics. Any DHCP server at the network may additionally service the request. With this DORA process, the discover and request message is broadcast, the offer and the acknowledgement message is broadcast or unicast depending upon the value of broadcast flag i.e. If the value of broadcast flag is 1,then the offer and acknowledgement message is broadcast and if 0,the messages are unicast. But this is valid only when the DHCP server is present in the same network because the router doesn’t forward any broadcast packet. What if the server is present in a different network? Here comes the role of DHCP relay. The DHCP server manages a pool of IP addresses and records approximately patron configuration parameters toge...
