User Guide
536
Configuring DHCP Service
DHCP
1
DHCP
1.1 Overview
DHCP (Dynamic Host Configuration Protocol) is widely used to automatically assign IP
addresses and other network configuration parameters to network devices, enhancing the
utilization of IP address.
1.2 Supported Features
The supported DHCP features of the switch include DHCP Server, DHCP Relay and DHCP
L2 Relay.
DHCP Server
DHCP Server is used to dynamically assign IP addresses, default gateway and other
parameters to DHCP clients. As the following figure shows, the switch acts as a DHCP
server and assigns IP addresses to the clients.
Figure 1-1
Application Scenario of DHCP Server
DHCP Clients
Switch
DHCP Server
DHCP Relay
DHCP Relay is used to process and forward DHCP packets between different subnets or
VLANs.
DHCP clients broadcast DHCP request packets to require for IP addresses. Without this
function, clients cannot obtain IP addresses from a DHCP server in the different LAN
because the broadcast packets can be transmitted only in the same LAN. To equip each
LAN with a DHCP server can solve this problem, but the costs of network construction will
be increased and the management of central network will become inconvenient.
A device with DHCP Relay function is a better choice. It acts as a relay agent and can
forward DHCP packets between DHCP clients and DHCP servers in different LANs.
Therefore, DHCP clients in different LANs can share one DHCP server.
DHCP Relay includes three features: Option 82, DHCP Interface Relay and DHCP VLAN
Relay.
Содержание JetStream T2600G-28TS
Страница 32: ...Part 1 Accessing the Switch CHAPTERS 1 Overview 2 Web Interface Access 3 Command Line Interface Access ...
Страница 136: ...Part 4 Configuring LAG CHAPTERS 1 LAG 2 LAG Configuration 3 Configuration Examples 4 Appendix Default Parameters ...
Страница 154: ...Part 5 Configuring DDM Only for Certain Devices CHAPTERS 1 Overview 2 DDM Configuration 3 Appendix Default Parameters ...
Страница 264: ...Configuring VLAN VPN Configuration Examples User Guide 235 Figure 4 2 Create VLAN 100 ...
Страница 265: ...User Guide 236 Configuring VLAN VPN Configuration Examples Figure 4 3 Create VLAN 200 ...
Страница 268: ...Configuring VLAN VPN Configuration Examples User Guide 239 Figure 4 7 Creating VLAN 100 ...
Страница 275: ...User Guide 246 Configuring VLAN VPN Configuration Examples Figure 4 11 Create VLAN 100 ...
Страница 276: ...Configuring VLAN VPN Configuration Examples User Guide 247 Figure 4 12 Create VLAN 200 ...
Страница 277: ...User Guide 248 Configuring VLAN VPN Configuration Examples Figure 4 13 Create VLAN 1050 ...
Страница 280: ...Configuring VLAN VPN Configuration Examples User Guide 251 Figure 4 18 Creating VLAN 100 ...
Страница 285: ...Part 11 Configuring GVRP CHAPTERS 1 Overview 2 GVRP Configuration 3 Configuration Example 4 Appendix Default Parameters ...
Страница 512: ...Part 16 Configuring L2PT CHAPTERS 1 Overview 2 L2PT Configuration 3 Configuration Example 4 Appendix Default Parameters ...
Страница 633: ...Part 21 Configuring ARP CHAPTERS 1 Overview 2 ARP Configurations 3 Appendix Default Parameters ...
Страница 718: ...Configuring QoS Configuration Examples User Guide 689 Extended Power Via MDI Yes Inventory Management Yes ...
Страница 748: ...Part 24 Configuring AAA CHAPTERS 1 Overview 2 AAA Configuration 3 Configuration Examples 4 Appendix Default Parameters ...
Страница 801: ...Part 26 Configuring Port Security CHAPTERS 1 Overview 2 Port Security Configuration 3 Appendix Default Parameters ...
Страница 859: ...User Guide 830 Configuring ACL Configuration Example for ACL Figure 3 18 Configuring Rule 3 ...
Страница 874: ...Configuring ACL User Guide 845 ...
Страница 962: ...Part 31 Configuring DoS Defend CHAPTERS 1 Overview 2 DoS Defend Configuration 3 Appendix Default Parameters ...
Страница 969: ...Part 32 Monitoring the System CHAPTERS 1 Overview 2 Monitoring the CPU 3 Monitoring the Memory ...
Страница 974: ...Monitoring the System Monitoring the Memory User Guide 945 Unit Current Memory Utilization 1 74 ...
Страница 975: ...Part 33 Monitoring Traffic CHAPTERS 1 Traffic Monitor 2 Appendix Default Parameters ...
Страница 982: ...Part 34 Mirroring Traffic CHAPTERS 1 Mirroring 2 Configuration Examples 3 Appendix Default Parameters ...
Страница 1043: ...Part 37 Configuring DLDP CHAPTERS 1 Overview 2 DLDP Configuration 3 Appendix Default Parameters ...
Страница 1111: ...User Guide 1082 Appendix Default Parameters Parameter Default Setting Interval 1800 seconds Owner monitor Status Disabled ...
Страница 1112: ...Part 39 Diagnosing the Device Network CHAPTERS 1 Diagnosing the Device 2 Diagnosing the Network 3 Appendix Default Parameters ...