DHCP 202

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DHCP:

DHCP By. Mayank Pandya E-mail:mayankpandya24@gmail.com

DHCP:

DHCP It stands for dynamic host configuration protocol. DHCP allow automatically assign IP address subnet mask and other configuration information to the client computers in the network. DHCP requires installing the server, configuring the server, authorizing the server, configuring scope, exclusion, reservation, activating the scope and finally verifying the configuration.

Advantages :

Advantages DHCP server generally reduce the time required to configured and reconfigured computer in the network. By assigning IP address automatically it allow you to avoid conflicting error resulting from entering IP address manually at every host.

Slide 4:

SCOPE :- scope is a range of IP address that is defined by network administrator and that IP we want to provide to the client system in our network. Lease :- An IP address within a defined scope is offered to the DHCP client is known as lease. The default lease duration value is 8 days and maximum 999 days.

Slide 5:

Exclusion :- An exclusion is a set of IP address included with the defined scope that we don’t want to provide to the DHCP client. Reservation :- Reservation is used to reserve a particular IP for a particular system in the network. We use reservation to create a permanent address lease assign by the DCHP server.

Slide 6:

Reservation assure that specific hardware device on the subnet can always use the safe IP address. Super scope :- A super scope is an administrative group of scope that is used to support multiple logical subnet on a single network segment.

DHCP messages :

DHCP messages DHCP acknowledge message :- A message sent by DHCP server to a client to acknowledge and complete a client request for release configuration. DHCP information message :- A reserved DHCP message type used by the computers on the network to request and obtain information from a DHCP server for use in their local configuration.

Slide 8:

DHCP negative acknowledgement message :- A message sent by a DHCP server to a client to indicate that the client request is not valid for a local IP network served by the DHCP server . This message is used when the client computer was moved to the new location but it also indicate that the client lease.

Slide 9:

DHCP offer messages :- A message used by DHCP server to offer the lease of an ip address to a DHCP client. DHCP release messages :- The client use this message to cancel its currently active lease. You can perform address release manually by using the ipconfig /release command.

Slide 10:

DHCP Request messages :- A message sent by client to the DHCP server to request or renew lease of its ip address.