291
Task Remarks
Configuring DHCP snooping
functions on an interface
Required
Specify an interface as trusted and configure DHCP snooping to support
Option 82.
By default, an interface is untrusted and DHCP snooping does not support
Option 82.
IMPORTANT:
You need to specify the ports connected to the authorized DHCP servers as
trusted to ensure that DHCP clients can obtain valid IP addresses. The trusted
port and the port connected to the DHCP client must be in the same VLAN.
Displaying clients' IP-to-MAC
bindings
Optional
Display clients' IP-to-MAC bindings recorded by DHCP snooping.
Enabling DHCP snooping
Select Network DHCP from the navigation tree, and then click the DHCP Snooping tab to enter the page
shown in a. You can enable or disable DHCP snooping in the DHCP Snooping field.