Dell PowerConnect PC5524

DHCP Snooping and ARP Inspection Commands 571
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\CLI Folders\Dell Contax
CLI\files\DHCP_Snooping.fm
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 - FOR PROOF ONLY
Example
The following example configures a device to verify that the source MAC
address in a DHCP packet received on an untrusted port matches the client
hardware address.
Console(config)# ip dhcp snooping verify
ip dhcp snooping database
Use the ip dhcp snooping database Global Configuration mode command to
enable the DHCP Snooping binding database file. Use the no form of this
command to delete the DHCP Snooping binding database file.
Syntax
ip dhcp snooping database
no ip dhcp snooping database
Default Configuration
The DHCP Snooping binding database file is not defined.
Command Mode
Global Configuration mode
User Guidelines
The DHCP Snooping binding database file resides on Flash.
To ensure that the lease time in the database is accurate, the Simple Network
Time Protocol (SNTP) must be enabled and configured.
The device writes binding changes to the binding database file only if the
device system clock is synchronized with SNTP.
Example
The following example enables the DHCP Snooping binding database file.
Console(config)# ip dhcp snooping database