3Com Baseline 2928 PWR Plus - Configuring DHCP Snooping Functions on an Interface; Displaying Clients IP-To-MAC Bindings

3-5
Configuring DHCP Snooping Functions on an Interface
Select Network > DHCP from the navigation tree, and then click the DHCP Snooping tab to enter the
page shown in
Figure 3-3. 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 Figure 3-4.
Figure 3-4 DHCP snooping interface configuration page
Table 3-2 describes DHCP snooping interface configuration items.
Table 3-2 DHCP snooping interface configuration items
Item Description
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
DHCP Snooping Configuration Task List.
Displaying Clients' IP-to-MAC Bindings
Select Network > DHCP from the navigation tree, and then click the DHCP Snooping tab to enter the
page shown in
Figure 3-3. Click the User Information button to view clients' IP-to-MAC bindings
recorded by DHCP snooping, as shown in
Figure 3-5.
Figure 3-5 DHCP snooping user information
Table 3-3 describes DHCP snooping user information configuration items.