Users Guide

304 Network Administration: DHCP Snooping and DHCP Relay
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\Dell Astute\User
Guide\Dell_Astute_Network_Admin_DHCP_Snooping&Relay.fm
DELL CONFIDENTIAL – PRELIMINARY 8/9/16 - FOR PROOF ONLY
DHCP Snooping Global Settings
Use the Global Settings page to:
• Enable/disable DHCP snooping globally.
• Determine whether to forward or filter DHCP packets received from
untrusted interfaces, whose source MAC address and the DHCP client
MAC address do not match.
• Determine whether to forward or filter DHCP packets, received from
untrusted interfaces, with option-82 information.
• Set Binding database update interval.
To configure DHCP snooping on the device:
1
Click Network Administration > DHCP Snooping and Relay > DHCP
Snooping >
Global Settings .
2 Click Edit , Settings Icon ().
3 Enable/disable DHCP snooping on the device in the DHCP Snooping
Status
field.
4 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.
VLAN Settings
To separate ports in a VLAN, enable DHCP snooping on it.
Before you enable DHCP snooping on a VLAN, you must globally enable
DHCP snooping on the device.
When DHCP snooping is disabled for a VLAN, the Binding entries that were
collected for that VLAN are removed from the Binding database.