IP DHCP Snooping Commands
ip dhcp snooping information option
Cisco 220 Series Smart Plus Switches Command Line Interface Reference Guide Release 1.0.0.x
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To reset the timeout value, use the no ip dhcp snooping database timeout
command.
To reset the write-delay value, use the no ip dhcp snooping database write-delay
command.
Example
switchxxxxxx(config)#
ip dhcp snooping database flash
switchxxxxxx(config)#
ip dhcp snooping database tftp 192.168.1.20 test1
switchxxxxxx(config)#
ip dhcp snooping database tftp test-host test2
switchxxxxxx(config)#
ip dhcp snooping database timeout 1200
switchxxxxxx(config)#
ip dhcp snooping database write-delay 3000
ip dhcp snooping information option
To enable DHCP option-82 data insertion, use the ip dhcp snooping information
option Global Configuration mode command.
To disable DHCP option-82 data insertion, use the no form of this command.
Syntax
ip dhcp snooping information option [format remote-id
STRING
]
no
ip dhcp snooping information option [format remote-id]
Parameters
•
format remote-id
STRING
—(Optional) Enables the remote ID string. (String
length: 1 to 63 characters)
Default Configuration
DHCP option-82 data insertion is disabled.
Command Mode
Global Configuration mode
User Guidelines
You must enable DHCP snooping globally by using the ip dhcp snooping Global
Configuration mode command to apply any DHCP snooping configuration.