Dhcp Snooping Interface Configuration - Ubiquiti EdgeSwitch ES-24-250W Administration Manual

EdgeSwitch Administration Guide
™
Field
VLAN ID
DHCP Snooping Mode
Use the buttons to perform the following tasks:
• To enable a VLAN for DHCP snooping, click Add and select the VLAN (press and hold CTRL to select
multiple VLANs). Then, click Submit to apply the changes.
• To disable DHCP snooping on one or more VLANs, select each entry to delete and click Remove. You must
confirm the action before the entry is deleted.
• Click Refresh to refresh the page with the most current data from the switch.
To retain the changes across the switch's next power cycle, click System > Configuration Storage > Save.

DHCP Snooping Interface Configuration

Use this page to view and configure the DHCP snooping settings for each interface. The DHCP snooping
feature processes incoming DHCP messages. For DHCPRELEASE and DHCPDECLINE messages, the feature
compares the receive interface and VLAN with the client's interface and VLAN in the binding database. If
the interfaces do not match, the application logs the event (when logging of invalid packets is enabled) and
drops the message. If MAC address validation is globally enabled, messages that pass the initial validation are
checked to verify that the source MAC address and the DHCP client hardware address match. Where there
is a mismatch, DHCP snooping logs the event (when logging of invalid packets is enabled) and drops the
packet. To change the DHCP Snooping settings for one or more interfaces, select each entry to modify and
click Edit. The same settings are applied to all selected interfaces.
To access the DHCP Snooping Interface Configuration page, click Switching > DHCP Snooping > Base >
Interface Configuration in the navigation menu.
Ubiquiti Networks, Inc.
DHCP Snooping VLAN Configuration
DHCP Snooping VLAN Configuration Fields
Description
The VLAN ID that is enabled for DHCP snooping. In the Add DHCP Snooping VLAN Configuration
window, this field lists the VLAN ID of all VLANs that exist on the device.
The current administration mode (Enabled or Disabled) of DHCP snooping for the VLAN. Only VLANs
that are enabled for DHCP snooping appear in the list.
Configuring Switching Information
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