D-Link xStack DGS-3120 Series Reference Guide

xStack® DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch Web UI Reference Guide
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To view this window, click Security > DHCP Server Screening > DHCP Server Screening Port Settings as
shown below:
Figure 8-68 DHCP Server Screening Port Settings window
The fields that can be configured are described below:
Parameter Description
DHCP Server Screening
Trap State
Click to enable or disable the DHCP server screening trap state.
DHCP Server Screening
Log State
Click to enable or disable the DHCP server screening log state.
Illegitimate Server Log
Suppress Duration
Choose an illegal server log suppress duration of 1 minute, 5 minutes, or 30
minutes.
Unit
Select the unit you want to configure. (EI and SI Mode Only)
From Port / To Port
Use the drop-down menus to select a range of ports to be configured.
State Choose Enabled to enable the DHCP server screening or Disabled to disable it.
The default is Disabled.
Click the Apply button to accept the changes made for each individual section.
DHCP Offer Permit Entry Settings
Users can add or delete permit entries in this window.
To view this window, click Security > DHCP Server Screening > DHCP Offer Permit Entry Settings as shown
below:

D-Link xStack DGS-3120 Series Specifications

General

MAC Address Table	16K entries
Ports	10/100/1000BASE-T ports
VLANs	4094
Jumbo Frame	Up to 9KB
Power Supply	Internal power supply (depending on model)
Power over Ethernet (PoE)	No
Layer 3 Features	RIP
Quality of Service (QoS)	8 queues per port, DiffServ
Security Features	ACLs
Management	Web-based, CLI, SNMP
Operating Temperature	0°C to 40°C
Storage Temperature	-40°C to 70°C
SFP Ports	Combo 10/100/1000BASE-T/SFP ports and/or dedicated SFP/SFP+ ports (depending on model)