Dynamic Host Configuration Protocol (Dhcp); Protocol Overview - Dell Force10 S4810P Configuration Manual

High-density, 1ru 48-port 10gbe switch

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Table of Contents

Dynamic Host Configuration Protocol (DHCP)

This chapter contains the following sections:

Implementation Information

Configuration Tasks

Configure the System to be a DHCP Server

Configure the System to be a Relay Agent

Configure the System for User Port Stacking

Configure Secure DHCP

Protocol Overview

Dynamic Host Configuration Protocol (DHCP) is an application layer protocol that dynamically assigns IP

addresses and other configuration parameters to network end-stations (hosts) based on configuration

policies determined by network administrators. DHCP:

relieves network administrators of manually configuring hosts, which is a can be a tedious and

error-prone process when hosts often join, leave, and change locations on the network.

reclaims IP addresses that are no longer in use to prevent address exhaustion.

DHCP is based on a client-server model. A host discovers the DHCP server and requests an IP address, and

the server either leases or permanently assigns one. There are three types of devices that are involved in

DHCP negotiation:

DHCP Server—a network device offering configuration parameters to the client

DHCP Client—a network device requesting configuration parameters from the server

Relay agent—an intermediary network device that passes DHCP messages between the client and

server when the server is not on the same subnet as the host

is available on platforms:

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