Alcatel-Lucent ls 6248 User Guide
Command Line Interface
636
4
User Guidelines
There are no user guidelines for this command.
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.
ip dhcp snooping database
The ip dhcp snooping database Global Configuration mode command configures
the DHCP snooping binding file. To delete the binding file, use the no form of this
command.
the DHCP snooping binding file. To delete the binding file, use the no form of this
command.
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 and the Simple
Network Time Protocol (SNTP) is enabled and configured.
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.
system clock is synchronized with SNTP.
Example
The following example configures the DHCP snooping binding file.
ip dhcp snooping database update-freq
The ip dhcp snooping database update-freq Global Configuration Command
configures the update frequency ofthe DHCP snooping binding file. To return to the
default configuration, use the no form of this command.
configures the update frequency ofthe DHCP snooping binding file. To return to the
default configuration, use the no form of this command.
Syntax
ip dhcp snooping database update-freq seconds
no ip dhcp snooping database update-freq
Console # (config)# ip dhcp snooping verify
Console # (config)#
Console # (config)#
Console # (config)# ip dhcp snooping database
Console # (config)#
Console # (config)#