C
HAPTER
30
| DHCP Commands
– 364 –
C
OMMAND
U
SAGE
◆
The switch supports DHCP relay service for attached host devices. If a
subnet does not include a DHCP server, you can relay DHCP client
requests to a DHCP server on another subnet.
◆
When DHCP relay is enabled and the switch sees a DHCP request
broadcast, it inserts its own IP address into the request (so that the
DHCP server knows the subnet of the client), then forwards the packet
to the DHCP server. When the server receives the DHCP request, it
allocates a free IP address for the DHCP client from its defined scope
for the DHCP client's subnet, and sends a DHCP response back to the
switch. The switch then broadcasts the DHCP response to the client.
◆
A DHCP relay server must first be configured (see the
dhcp relay server
command on
page 364
) before DHCP relay mode can be enabled with
this command.
E
XAMPLE
DHCP/Relay>mode enable
DHCP/Relay>
dhcp relay server
This command displays or sets the IP address of the DHCP relay server.
S
YNTAX
dhcp relay server
[
ip-address
]
ip-address
- IP address of DHCP server to be used by the switch's
DHCP relay agent.
D
EFAULT
S
ETTING
None
E
XAMPLE
DHCP/Relay>server 192.168.1.25
DHCP/Relay>
dhcp relay
information mode
This command displays or sets the DHCP Relay Option 82 mode.
S
YNTAX
dhcp relay information mode
[
enable
|
disable
]
enable
- Enables DHCP Relay Option 82 support. Note that DHCP
relay mode must also be enabled with the
dhcp relay mode
command (see
page 363
) for DHCP relay information mode to take
effect.
disable
- Disables DHCP Relay Option 82 support.
Содержание 8028L2
Страница 1: ...MANAGEMENT GUIDE TigerSwitchTM 10 100 1000 28 Port Gigabit Ethernet Switch SMC8028L2 ...
Страница 6: ...ABOUT THIS GUIDE 6 ...
Страница 22: ...FIGURES 22 ...
Страница 26: ...SECTION Getting Started 26 ...
Страница 46: ...CHAPTER 2 Initial Switch Configuration Managing System Files 46 ...
Страница 48: ...SECTION Web Configuration 48 ...
Страница 133: ...CHAPTER 4 Configuring the Switch Simple Network Management Protocol 133 Figure 34 SNMP System Configuration ...
Страница 144: ...CHAPTER 4 Configuring the Switch Configuring DHCP Relay and Option 82 Information 144 ...
Страница 184: ...CHAPTER 6 Performing Basic Diagnostics Running Cable Diagnostics 184 ...
Страница 238: ...CHAPTER 12 Port Commands 238 ...
Страница 244: ...CHAPTER 13 Link Aggregation Commands 244 ...
Страница 262: ...CHAPTER 15 RSTP Commands 262 ...
Страница 272: ...CHAPTER 16 IEEE 802 1X Commands 272 ...
Страница 282: ...CHAPTER 17 IGMP Commands 282 ...
Страница 290: ...CHAPTER 18 LLDP Commands 290 ...
Страница 296: ...CHAPTER 19 MAC Commands 296 ...
Страница 306: ...CHAPTER 21 PVLAN Commands 306 ...
Страница 318: ...CHAPTER 22 QoS Commands 318 ...
Страница 352: ...CHAPTER 26 SNMP Commands 352 ...
Страница 355: ...CHAPTER 27 HTTPS Commands 355 EXAMPLE HTTPS redirect enable HTTPS ...
Страница 356: ...CHAPTER 27 HTTPS Commands 356 ...
Страница 362: ...CHAPTER 29 UPnP Commands 362 ...
Страница 370: ...CHAPTER 31 Firmware Commands 370 ...
Страница 372: ...SECTION Appendices 372 ...
Страница 386: ...GLOSSARY 386 ...
Страница 390: ...INDEX 390 W web interface access requirements 49 configuration buttons 50 home page 50 menu list 51 panel display 51 ...
Страница 391: ...INDEX 391 ...
Страница 392: ...149100000079A R01 SMC8028L2 ...