DHCP

#DHCP stands for Dynamic Host configuration protocol:-
It reduces the complexity and administrative task efforts by using automatic IP configuration. DHCP port number 67 for DHCP server and 68 for client.
There are 2 methods of IP assignment that is Manual IP configuration and Automatic IP configuration.

#Manual IP configuration versus Automatic IP configuration:-

• The administrator has to enter the IP address manually to each machine by machine. It is a tedious task example if your company has 200 PCs then it is practically not possible for desktop administrator. Automatic IP configuration using DHCP resolves this problem.
• Also Manual IP address could mismatch or it can be entered incorrectly, resulting into a network communication issues. DHCP ensure correct configuration information and the client configuration is updated automatically.
• If a computer is moved from one department to another department,it can be lead to change of the IP address and more administrative effort. by using DHCP the common network problem is eliminated.

#Working of DHCP Lease Process:- 

DHCP works on DORA process:-

D=Discover
O=Offer
R=Request
A=Acknowledge from DHCP server

#DHCP Process to allocate IP address to the client:-

An IP address is allocated or leased to a client machine by a DHCP server for a time period. For windows server 2012, the default lease period is 8 days. After 8 days the IP has to be renewed.

#Configuration of DHCP:-
DHCP Scope
DHCP Reservation
DHCP Option
DHCP Database
DHCP Lease process.
DHCP Renewal Process 

DHCP Relay Agent

step by step DHCP Server Installation:- 

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