C
HAPTER
30
| DHCP Commands
– 365 –
D
EFAULT
S
ETTING
Disabled
C
OMMAND
U
SAGE
◆
DHCP also provides a mechanism for sending information about the
switch and its DHCP clients to the DHCP server. Known as DHCP Option
82, it allows compatible DHCP servers to use the information when
assigning IP addresses, or to set other services or policies for clients.
◆
Using DHCP Relay Option 82, clients can be identified by the VLAN and
switch port to which they are connected rather than just their MAC
address. DHCP client-server exchange messages are then forwarded
directly between the server and client without having to flood them to
the entire VLAN.
E
XAMPLE
DHCP/Relay/Information>mode enable
DHCP/Relay/Information>
dhcp relay
information policy
This command displays or sets the DHCP relay policy for DHCP client
packets that include Option 82 information.
S
YNTAX
dhcp relay information policy
[
replace
|
keep
|
drop
]
replace
- Overwrites the DHCP client packet information with the
switch's relay information.
keep
- Retains the client's DHCP information.
drop
- Drops the packet when it receives a DHCP message that
already contains relay information.
D
EFAULT
S
ETTING
Replace Option 82 information
E
XAMPLE
DHCP/Relay/Information>policy keep
DHCP/Relay/Information>
dhcp relay statistics
This command displays or clears DHCP relay statistics.
S
YNTAX
dhcp relay statistics
[
clear
]
clear
- Clears DHCP relay statistics.
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 ...