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ES-2024 Series User’s Guide
195
C
H A P T E R
27
DHCP
This chapter shows you how to configure the DHCP feature.
27.1 DHCP Overview
DHCP (Dynamic Host Configuration Protocol RFC 2131 and RFC 2132) allows individual
computers to obtain TCP/IP configuration at start-up from a server. You can configure the
Switch as a DHCP relay agent. If you configure the Switch as a relay agent, then the Switch
forwards DHCP requests to DHCP server on your network. If you don’t configure the Switch
as a DHCP relay agent then you must have a DHCP server in the broadcast domain of the
client computers or else the client computers must be configured manually.
27.1.1 DHCP Modes
If there is already a DHCP server on your network, then you can configure the Switch as a
DHCP relay agent. When the Switch receives a request from a computer on your network, it
contacts the DHCP server for the necessary IP information, and then relays the assigned
information back to the computer.
27.1.2 DHCP Configuration Options
The DHCP configuration on the Switch is divided into
Global
and
VLAN
screens. The screen
you should use for configuration depends on the DHCP services you want to offer the DHCP
clients on your network. Choose the configuration screen based on the following criteria:
•
Global
- The Switch forwards all DHCP requests to the same DHCP server.
•
VLAN
- The Switch is configured on a VLAN by VLAN basis. The Switch can be
configured to relay DHCP requests to different DHCP servers for clients in different
VLAN.
27.2 DHCP Status
Click
IP Application
>
DHCP
in the navigation panel. The
DHCP Status
screen displays.
Summary of Contents for ES-2024 Series
Page 2: ......
Page 8: ...Safety Warnings ES 2024 Series User s Guide 8...
Page 20: ...Table of Contents ES 2024 Series User s Guide 20...
Page 28: ...List of Tables ES 2024 Series User s Guide 28...
Page 30: ...30...
Page 38: ...Chapter 2 Hardware Installation and Connection ES 2024 Series User s Guide 38...
Page 44: ...Chapter 3 Hardware Overview ES 2024 Series User s Guide 44...
Page 46: ...46...
Page 56: ...Chapter 4 The Web Configurator ES 2024 Series User s Guide 56...
Page 66: ...Chapter 6 Tutorials ES 2024 Series User s Guide 66...
Page 86: ...86...
Page 98: ...Chapter 9 VLAN ES 2024 Series User s Guide 98...
Page 104: ...Chapter 11 Static Multicast Forwarding ES 2024 Series User s Guide 104...
Page 136: ...Chapter 18 Port Authentication ES 2024 Series User s Guide 136...
Page 170: ...Chapter 22 AAA ES 2024 Series User s Guide 170...
Page 185: ...185 PART IV IP Application Static Route 187 Differentiated Services 191 DHCP 195...
Page 186: ...186...
Page 190: ...Chapter 25 Static Route ES 2024 Series User s Guide 190...
Page 202: ...202...
Page 226: ...Chapter 29 Access Control ES 2024 Series User s Guide 226...
Page 228: ...Chapter 30 Diagnostic ES 2024 Series User s Guide 228...
Page 232: ...Chapter 31 Syslog ES 2024 Series User s Guide 232...
Page 242: ...Chapter 33 MAC Table ES 2024 Series User s Guide 242...
Page 248: ...248...
Page 256: ...Appendix A Product Specifications ES 2024 Series User s Guide 256...
Page 268: ...Appendix C Legal Information ES 2024 Series User s Guide 268...