Dell POWERCONNECT 5548P - Page 578

Dell PowerConnect 55xx Systems User Guide 577
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Maintenance Projects\Dell
Contax\CxUGSwitching_DHCP.fm
DELL CONFIDENTIAL – PRELIMINARY 9/11/12 - FOR PROOF ONLY
To configure DHCP snooping on the device:
1
Click Switching > DHCP Snooping > Global Parameters in the tree view
to display the
Global Parameters page.
Figure 19-1. Global Parameters
2 Enable/disable DHCP snooping on the device in the DHCP Snooping
Status
field.
3 If DHCP snooping is enabled, enter the fields:
–
Option 82 Passthrough — Enable/disable whether to forward (enable)
or filter (disable) DHCP packets, received from untrusted interfaces,
with option-82 information.
–
Verify MAC Address — Enable/disable MAC addresses verification.
This determines whether to forward (enable) or filter (disable) DHCP
packets received from untrusted interfaces, whose source MAC
address and the DHCP client MAC address do not match.
–
Save Binding Database to File — Enable/disable saving the DHCP
snooping database to flash memory.
–
Save Binding Database Internal (600-86400) — Enter how often, in
seconds, the Binding database is updated.
Configuring DHCP Snooping Global Parameters Using CLI Commands