Basic information of DHCP

Dhcp server: Dhcp server provide Ip address his client automatically. defined range of numbers Client computers configured to use DHCP for IP assignment do not need to have a statically assigned IP address.it define by default eight days. when 50% time over then client send send a request on server. next when 87.3% time over then again send a request client onserver. and when 100% time over then again client machin send a request. that time mostly release again ip Ip may be same or diffrent this is not fix. if any case server fail then five minute wait all client machine then provide apipa ip apipa available in registry client machine. apipa range = 169.254.0.0 -169.254.255.255

DHCP server never assign permanently IP address it provide by default eight days. administrator can be fix any ip on patricular machine base of mac address because mac accress always uniqe address never match another lancard word wide. If admin fix any ip paticular machine then never change ip. They generally do not need to have addresses configured for DNS servers or WINS servers, as these are also set by the DHCP server.A user turns on a computer with a DHCP The client computer sends a broadcast request looking for a DHCP server. server receives the DISCOVER packet. DHCP uses the same two IANA assigned ports as BOOTP: 67/udp for the server side,and 68/udp for the client side.

The server also configures the client's DNS servers, WINS servers, NTP servers, and other services as well. client sends a request packet. server sends an Acknowledgement packet, confirming that the client has a ip address. When a computer uses a static IP address, it means that the computer is manually configured to use a specific IP address.If you use DHCP servers to automatically configure the TCP/IP settings for workstations in your organization, a DHCP failure can lead to a major disruption in service.