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154
DHCP Snooping
Syntax
•
ip dhcp snooping vlan
vlan-id
•
no ip dhcp snooping vlan
vlan-id
•
vlan-id
— Specifies the VLAN ID.
Default Configuration
The default configuration is disabled.
Command Mode
Global Configuration mode.
User Guidelines
•
You must first globally enable DHCP snooping before enabling DHCP snooping on a VLAN.
Example
The following example enables DHCP snooping on VLAN 1000:
ip dhcp snooping trust
The
ip dhcp snooping trust
Interface Configuration (Ethernet, Port-channel) mode command
configures a port as trusted for DHCP snooping purposes. Use the
no
form of this command to return to
the default settings.
Syntax
•
ip dhcp snooping trust
•
no ip dhcp snooping trust
Default Configuration
The default configuration is that the interface is not trusted.
Command Mode
Interface Configuration (Ethernet, Port-channel) mode.
User Guidelines
•
Configure as trusted ports those that are connected to a DHCP server or to other switches or routers.
Configure as untrusted ports those that are connected to DHCP clients.
console(config)#
ip dhcp snooping vlan 1000
book.book Page 154 Thursday, December 18, 2008 7:40 PM
Содержание PowerConnect 3500 Series
Страница 62: ...62 Command Groups book book Page 62 Thursday December 18 2008 7 40 PM ...
Страница 80: ...80 Command Modes book book Page 80 Thursday December 18 2008 7 40 PM ...
Страница 124: ...124 Address Table Commands book book Page 124 Thursday December 18 2008 7 40 PM ...
Страница 162: ...162 DHCP Snooping book book Page 162 Thursday December 18 2008 7 40 PM ...
Страница 244: ...244 Line Commands book book Page 244 Thursday December 18 2008 7 40 PM ...
Страница 266: ...266 LLDP Commands book book Page 266 Thursday December 18 2008 7 40 PM ...
Страница 276: ...276 Login Banner book book Page 276 Thursday December 18 2008 7 40 PM ...
Страница 280: ...280 PHY Diagnostics Commands book book Page 280 Thursday December 18 2008 7 40 PM ...
Страница 290: ...290 Power over Ethernet Commands book book Page 290 Thursday December 18 2008 7 40 PM ...
Страница 294: ...294 Port Channel Commands book book Page 294 Thursday December 18 2008 7 40 PM ...
Страница 298: ...298 Port Monitor Commands book book Page 298 Thursday December 18 2008 7 40 PM ...
Страница 310: ...310 QoS Commands book book Page 310 Thursday December 18 2008 7 40 PM ...
Страница 318: ...318 RADIUS Commands book book Page 318 Thursday December 18 2008 7 40 PM ...
Страница 414: ...414 Syslog Commands book book Page 414 Thursday December 18 2008 7 40 PM ...
Страница 440: ...440 TACACS Commands book book Page 440 Thursday December 18 2008 7 40 PM ...
Страница 452: ...452 TIC Commands book book Page 452 Thursday December 18 2008 7 40 PM ...
Страница 460: ...460 Tunnel book book Page 460 Thursday December 18 2008 7 40 PM ...
Страница 492: ...492 VLAN Commands book book Page 492 Thursday December 18 2008 7 40 PM ...
Страница 500: ...500 Voice VLAN book book Page 500 Thursday December 18 2008 7 40 PM ...
Страница 514: ...514 Web Server book book Page 514 Thursday December 18 2008 7 40 PM ...