3com 2928 User Guide

 

3-5 

Select Network > DHCP from the navigation tree, and then click the DHCP Snooping tab to enter the 
page shown in 

. You can view trusted and untrusted ports in the Interface Config field. Click 

the 

 icon of a specific interface to enter the page shown in 

. 

DHCP snooping interface configuration page 

 

 

 describes DHCP snooping interface configuration items. 

DHCP snooping interface configuration items 

Interface Name 

This field displays the name of a specific interface. 

Interface State 

Configure the interface as trusted or untrusted. 

Option 82 Support 

Configure DHCP snooping to support Option 82 or not. 

Option 82 Strategy 

Select the handling strategy for DHCP requests containing Option 82. The 

strategies include: 

z

 

Drop: The message is discarded if it contains Option 82. 

z

 

Keep: The message is forwarded without its Option 82 being changed. 

z

 

Replace: The message is forwarded after its original Option 82 is 

replaced with the Option 82 padded in normal format. 

 
Return to 

Select Network > DHCP from the navigation tree, and then click the DHCP Snooping tab to enter the 
page shown in 

. Click the User Information button to view clients' IP-to-MAC bindings 

recorded by DHCP snooping, as shown in 

. 

DHCP snooping user information 

 

 

 describes DHCP snooping user information configuration items.