Dhcp - TP-Link T1600G-18TS Configuration Manual

T1600g series

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Configuring DHCP

DHCP

1.1 Overview

DHCP (Dynamic Host Configuration Protocol) is widely used in local area networks (LANs)

to dynamically assign IP addresses and other network configuration parameters to network

devices, which enhances the utilization of IP address.

1.2 Supported Features

The supported DHCP features of the switch include DHCP Relay and DHCP Client.

A Layer 3 interface can be configured as a DHCP client. After configured, the Layer 3

interface can dynamically obtain IP address and other parameters from a DHCP server,

which eases the network configuration and management. As the following figure shows,

the switch acts as a DHCP client and dynamically obtain IP address from the DHCP server.

Figure 1-1 Application Scenario of DHCP Client

DHCP Relay is used to process and forward DHCP packets between different subnets or

Since the client requests a dynamic IP address via broadcast, the basic network model

of DHCP requires that the client and the server should be on the same LAN (on the same

subnet and VLAN). Therefore, each LAN should be equipped with a DHCP server, thus

increasing the costs of network construction.

DHCP Relay solves this problem. The DHCP Relay device acts as a relay agent and

forwards DHCP packets between DHCP clients and DHCP servers on different LANs, so

that DHCP clients on different LANs can share one DHCP server.

Configuration Guide

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