Task

Remarks

 

Required

 

Specify an interface as trusted and configure DHCP snooping to support

 

Option 82.

Configuring DHCP snooping

By default, an interface is untrusted and DHCP snooping does not support

Option 82.

functions on an interface

 

 

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

Optional

bindings

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.

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