Ip Dhcp Snooping Database; Ip Dhcp Snooping Database Update-Freq - Dell PowerConnect 5424 Command Line Interface Manual

Powerconnect 5400 series
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Example
The following example configures the switch to verify on an untrusted port that the source MAC address
in a DHCP packet matches the client hardware address.
console (config)#ip dhcp snooping verify

ip dhcp snooping database

The ip dhcp snooping database Global Configuration mode command configures the DHCP snooping
binding file. Use the no form of this command to delete the binding file.
Syntax
ip dhcp snooping database
no ip dhcp snooping database
Default Configuration
The URL is not defined.
Command Mode
Global Configuration mode.
User Guidelines
To ensure that the lease time in the database is accurate, Simple Network Time Protocol (SNTP) is
enabled and configured.
The switch writes binding changes to the binding file only when the switch system clock is
synchronized with SNTP.
Example
The following example configures the DHCP snooping binding file.
console (config)# ip dhcp snooping database

ip dhcp snooping database update-freq

The ip dhcp snooping database update-freq Global Configuration mode command configures the update
frequency ofthe DHCP snooping binding file. Use the no form of this command to return to default.
Syntax
ip dhcp snooping database update-freq seconds
no ip dhcp snooping database update-freq
seconds — Specify, in seconds, the update frequency.
182
DHCP Snooping

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