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Feature Description - IP Services 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Feature Description - IP Services
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DHCP Server Application

DHCP Server Application

Service Overview

A DHCP server is used to assign IP addresses in the following scenarios:

  • Manual configurations take a long time and bring difficulties to centralized management on a large network.

  • Hosts on the network outnumber the available IP addresses. Therefore, not every host can have a fixed IP address assigned. For example, if service providers (SPs) limit the number of concurrent network access users, many hosts must dynamically obtain IP addresses from the DHCP server.

  • Only a few hosts on the network require fixed IP addresses.

Networking Description

On a typical DHCP network, a DHCP server and multiple DHCP clients exist, such as PCs and portable computers. DHCP uses the client/server model. A client applies to the server for configuration parameters, such as an IP address, subnet mask, and default gateway address; the server replies with the requested configuration parameters. Figure 4-9 shows typical DHCP networking.

Figure 4-9 Typical DHCP Networking

NOTE:
If a DHCP client and a DHCP server reside on different network segments, the client can obtain an IP address and other configuration parameters from the server through a DHCP relay agent. For details about DHCP relay, see DHCP Relay.
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Updated: 2019-01-14

Document ID: EDOC1100058931

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