Comnet CWGE9MS User Manual

INSTALLATION AND OPERATION MANUAL

CWGE9MS

COMMERCIAL GRADE 9 PORT GIGABIT MANAGED ETHERNET SWITCH

WITH (7) 10/100/1000TX + (2) 1000FX SFP

OR 10/100/1000TX PORTS

V1.02 – October 2010

The ComNet™ CWGE9MS Managed Ethernet Switch provides transmission of (7) 10/100/1000 BASE-TX and

(2) 1000FXcombo ports. These units are available for use with either conventional CAT-5e copper or optical transmission media. Ports 1 – 7 support the 10/100/1000 Mbps Ethernet IEEE 802.3 protocol, and auto-negotiating and auto-MDI/MDIX features are provided for simplicity and ease of installation. Ports 8 – 9 are 10/100/1000 configurable for copper or 1000 fiber media for use with multimode or single mode optical fiber without need for configuration, selected by optional SFP modules. These network managed layer 2 switches are optically and electrically compatible with any IEEE 802.3 compliant Ethernet devices. Plug-and-play design ensures ease of installation, and no electrical or optical adjustments are ever required. The CWGE9MS incorporates LED indicators for monitoring the operating status of the managed switch and network.

FCC Warning

This Equipment has been tested and found to comply with the limits for a Class-A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

!Reorient or relocate the receiving antenna.

!Increase the separation between the equipment and receiver.

!Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

!Consult the dealer or an experienced radio/TV technician for help.

CE Mark Warning

This is a Class-A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Content
Chapter 1 Introduction.............................................................................................		6
1.1	Hardware Features ......................................................................................................	6
1.2	Software Feature..........................................................................................................	8
1.3	Package Contents......................................................................................................	10
Chapter 2 Hardware Description ..........................................................................		11
2.1	Physical Dimension....................................................................................................	11
2.2	Front Panel.................................................................................................................	11
2.3	Rear Panel .................................................................................................................	12
2.4	LED Indicators............................................................................................................	13
Chapter 3 Hardware Installation ...........................................................................		14
3.1	Desktop Installation....................................................................................................	14
3.2	Attaching Rubber Feet ...............................................................................................	14
3.3	Power On ...................................................................................................................	14
Chapter 4 Network Application.............................................................................		15
4.1	Desktop Application ...................................................................................................	15
4.2	Segment Application ..................................................................................................	15
4.3	X-Ring Application......................................................................................................	16
4.4	Coupling Ring Application ..........................................................................................	18
4.5	Dual Homing Application............................................................................................	18
Chapter 5 Console Management ..........................................................................		20
5.1	Connecting to the Console Port .................................................................................	20
5.2	Login in the Console Interface ...................................................................................	20
5.3	CLI Management........................................................................................................	22
Chapter 6 Web-Based Management .....................................................................		24
6.1	About Web-based Management ................................................................................	24
6.2	Preparing for Web Management ................................................................................	24
6.3	System Login .............................................................................................................	25
6.4	System Information ....................................................................................................	26
6.5	IP Configuration .........................................................................................................	26
6.6	DHCP Server .............................................................................................................	27
	6.6.1 System configuration .......................................................................................	28

	6.6.2 Client Entries....................................................................................................	29
	6.6.3 Port and IP Bindings ........................................................................................	29
6.7 TFTP ..........................................................................................................................		30
	6.7.1 Update Firmware .............................................................................................	30
	6.7.2 Restore Configuration ......................................................................................	30
	6.7.3 Backup Configuration.......................................................................................	31
6.8 System Event Log ......................................................................................................		32
	6.8.1 Syslog Configuration........................................................................................	32
	6.8.2 SMTP Configuration.........................................................................................	33
	6.8.3 Event Configuration .........................................................................................	35
6.9 SNTP Configuration ...................................................................................................		37
6.10	IP Security................................................................................................................	39
6.11	User Authentication..................................................................................................	41
6.12	Port Statistics ...........................................................................................................	42
6.13	Port Control ..............................................................................................................	43
6.14	Port Trunk ................................................................................................................	44
	6.14.1 Aggregator setting..........................................................................................	45
	6.14.2 Aggregator Information ..................................................................................	47
	6.14.3 State Activity ..................................................................................................	48
6.15	Port Mirroring ...........................................................................................................	50
6.16	Rate Limiting ............................................................................................................	51
6.17	VLAN configuration ..................................................................................................	52
	6.17.1 Port-based VLAN ...........................................................................................	52
	6.17.2 802.1Q VLAN.................................................................................................	56
6.18	Rapid Spanning Tree ...............................................................................................	60
	6.18.1 RSTP - System Configuration........................................................................	60
	6.18.2 RSTP - Port Configuration .............................................................................	61
6.19	SNMP Configuration ................................................................................................	63
	6.19.1 System Configuration.....................................................................................	63
	6.19.2 Trap Configuration .........................................................................................	64
	6.19.3 SNMPV3 Configuration..................................................................................	65

6.20	QoS Configuration....................................................................................................	69
	6.20.1 QoS Policy and Priority Type .........................................................................	69
	6.20.2 Port-based Priority .........................................................................................	70
	6.20.3 COS Configuration.........................................................................................	70
	6.20.3 TOS Configuration .........................................................................................	71
6.21	IGMP Configuration..................................................................................................	72
6.22	X-Ring ......................................................................................................................	73
6.23	LLDP ........................................................................................................................	76
	6.25.4 Multicast Filtering ...........................................................................................	77
6.23	Security-802.1X/Radius Configuration .....................................................................	78
	6.23.1 System Configuration.....................................................................................	78
	6.23.2 Port Configuration ..........................................................................................	79
	6.23.3 Misc Configuration .........................................................................................	80
6.24	MAC Address Table .................................................................................................	81
	6.24.1 Static MAC Address.......................................................................................	81
	6.24.2 MAC Filtering .................................................................................................	82
	6.24.3 All MAC Addresses ........................................................................................	83
6.25	Factory Default.........................................................................................................	84
6.26	Save Configuration...................................................................................................	84
6.27	System Reboot.........................................................................................................	85
Problem Solving.....................................................................................................		86
Appendix A Command Sets ..................................................................................		88
Commands Set List..........................................................................................................		88
System Commands Set ...................................................................................................		88
Port Commands Set.........................................................................................................		91
Trunk Commands Set ......................................................................................................		94
VLAN Commands Set ......................................................................................................		95
Spanning Tree Commands Set........................................................................................		98
QOS Commands Set .....................................................................................................		101
IGMP Commands Set ....................................................................................................		102
Mac / Filter Table Commands Set..................................................................................		103
SNMP Commands Set ...................................................................................................		104

Port Mirroring Commands Set........................................................................................	107
802.1x Commands Set...................................................................................................	108
TFTP Commands Set ....................................................................................................	111
SystemLog, SMTP and Event Commands Set ..............................................................	111
SNTP Commands Set....................................................................................................	114
X-ring Commands Set....................................................................................................	116

Chapter 1 Introduction

The CWGE9MS managed Ethernet switch is a multi-port switch that can be used to build high-performance switched workgroup networks. It provides wire-speed, Fast Ethernet switching function that allows for a high-performance, low-cost connection. The switch features a store-and-forward switching and it can auto-learn and store source address on an 8K-entry MAC address table.

The CWGE9MS managed Ethernet switch has 7 auto-sensing 10/100/1000Base-TX RJ45 ports and 2 SFP/Giga copper combo port for higher connection speed.

1.1 Hardware Features

IEEE 802.3 10BASE-T

IEEE 802.3u 100BASE-TX

IEEE 802.3z Gigabit fiber

IEEE 802.3ab 1000Base-T

IEEE 802.3x Flow Control and Back Pressure Standards IEEE 802.3ad Port Trunk with LACP

IEEE 802.1d Spanning Tree Protocol IEEE 802.1w Rapid Spanning Tree IEEE 802.1p Class of Service

IEEE 802.1q VLAN Tagging IEEE 802.1x User Authentication

Protocol

CSMA/CD

Per unit: Power (Green)

LED Indicators Per port: Link/Activity (Green), speed 1000(Green) SFP: Link/Activity (Green)

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		10/100/1000TX: 7 x RJ45 with Auto MDI/MDI-X
	Connector	function
		Gigabit fiber: 2 x Mini-GBIC socket
		Console port: RS-232 connector
		Store and forward switch architecture. 18Gbps
	Switch architecture	system backplane. System throughput up to
		26.7Mbps.
	Packet buffer	1Mbits for packet buffer
	RS-232 connector	One RS-232 DB-9 Female connector for switch
		management
	Dimensions	217mm(W) x 140mm(D) x 43mm(H)
	MAC Address	8K MAC address table with Auto learning function
	Storage Temp.	-40 ~70 , 95% RH
	Operational Temp.	0 ~60 , 5%~95%RH
	Operational Humidity	10% to 90% (Non-condensing)
	Power Supply	AC 100~240V, 50/60Hz
	Power Consumption	19.3 Watts
	Ventilation	1
	EMI	FCC Class A, CE
	Safety	CE/EN60950-1

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1.2 Software Feature

	Management	SNMP v1 v2c, v3/ Web/Telnet/CLI Management
		Port Based VLAN
	VLAN	IEEE 802.1Q Tag VLAN (256 entries)/ VLAN ID (Up to
		4K, VLAN ID can be assigned from 1 to 4094.)
		GVRP (256 Groups)
	Port Trunk with	LACP Port Trunk: 4 Trunk groups/Maximum 4 trunk
	LACP	members
	Spanning Tree	IEEE802.1d Spanning tree
		IEEE802.1w Rapid spanning tree
		Support X-ring, Dual Homing and Couple Ring
	X-ring	Provide redundant backup feature and the recovery time
		below 300ms
	Quality of service	The quality of service determined by port, Tag and IPv4
		Type of Service, IPv4/IPv6 Different Service
	Class of Service	Support IEEE 802.1p Class of Service, per port provides
		4 priority queues
	Port Security	Supports 100 entries of MAC address for static MAC and
		another 100 for MAC filter
	Port Mirror	Supports 3 mirroring types: “RX, TX and Both packet”

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Support IGMP snooping v1,v2

IGMP

256 multicast groups and IGMP query

Provide 10 IP addresses that have permission to access IP Security the switch management and to prevent unauthorized

intruder

Support IEEE802.1x User-Authentication and can report to RADIUS server.

!	Reject
Login Security	Accept
!
!	Authorize
!	Disable

The egress rate control supports all of packet type and the limit rates are 100K~250Mbps

Ingress filter packet type combination rules are

Bandwidth Control Broadcast/Multicast/Unknown Unicast packet,

Broadcast/Multicast packet, Broadcast packet only and all of packet. The packet filter rate can be set from 100k to 250Mbps

Flow Control

Support Flow Control for Full-duplex and Back Pressure for Half-duplex

System Log Support system log record and remote system log server

SMTP

Support SMTP Server and 6 email account for receiving event alert

Up to 3 trap stations

SNMP Trap

Cold start, Port link up, Port link down, Authentication failure, Private Trap for power status, X-ring topology change

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RFC 1215 Trap, RFC1213 MIBII, RFC 1157 SNMP MIB,

SNMP MIB RFC 1493 Bridge MIB, RFC 2674 VLAN MIB, RFC 1643 , RFC 1757, RSTP MIB, Private MIB

DHCP	DHCP Client, DHCP Server

DNS

Provides DNS client feature and support Primary and

Secondary DNS server

Support Simple Network Time Protocol to synchronize

SNTP

system clock in Internet

Firmware Upgrade

Support TFTP firmware upgradeable, TFTP backup and restore

Configuration

Support text format configuration file for system quick

upload and

installation

download

1.3 Package Contents

Unpack the contents of the CWGE9MS managed Ethernet switch and verify them against the checklist below.

!CWGE9MS managed Ethernet switch

!Power Cord

!Four Rubber Feet

!RS-232 cable

!User Manual

Compare the contents of the CWGE9MS managed Ethernet switch package with the standard checklist above. If any item is missing or damaged, please contact ComNet for service.

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Chapter 2 Hardware Description

This section describes the hardware of the CWGE9MS managed Ethernet switch.

2.1 Physical Dimension

The physical dimensions of the CWGE9MS managed Ethernet switch is 217mm(W) x

140mm(D) x 43mm(H)

2.2 Front Panel

The front panel of the CWGE9MS managed Ethernet switch consists of 7x auto-sensing

10/100/1000Mbps Ethernet RJ45 ports (automatic MDI/MDIX), 2 SFP/Giga copper combo ports, and the LED indicators are also located on the front panel of the switch.

Front Panel of the 7 10/100/1000TX + 2 10/100/1000T and 1000 SFP Combo Managed Switch

RJ45 Ports (Auto MDI/MDIX)

There are 7 10/100/1000 auto-sensing RJ45 ports for 10Base-T, 100Base-TX, or 1000Base-T connections. In general, MDI means connecting to another Hub or Switch while MDIX means connecting to a workstation or PC. Therefore, Auto MDI/MDIX means that you can connect to another Switch or workstation without changing non-crossover or crossover cabling.

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2 SFP/Giga copper combo port

Traditional RJ45 ports can be used for unlinking wide-band paths in short distance (<100m), or the appropriate replaceable mini-GBIC ports can be used for the application of wideband unlinking and long distance transmissions to fit the flexible field request.

2.3 Rear Panel

The 3-pronged power plug are located at the rear panel of the CWGE9MS managed Ethernet switch as shown in figure. The switch will work with AC in the range 100-240V

AC, 50-60Hz.

Rear panel of the CWGE9MS managed Ethernet switch

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2.4 LED Indicators

The following table provides descriptions of the LED statuses and meaning. They provide a real-time indication of systematic operation status.

	LED	Status	Description
	Power	Green	Power On
		Yellow	The port is operating at the speed of 1000Mbps.
	1000M	Amber	The port is operating at the speed of 100Mbps.
			The port is operating at the speed of 10Mbps or
		Off
			no device attached
		Green	The port is successfully connecting with the
			device.
	LNK / ACT	Blinks	The port is receiving or transmitting data.
		Off	No device attached.
		Green	The port is successfully connecting with the
			device.
	LNK / ACT	Blinks	The port is receiving or transmitting data.
	(SFP)
		Off	No device attached.

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Chapter 3 Hardware Installation

3.1 Desktop Installation

Set the switch on a sufficiently large flat space with a power outlet nearby. The surface where you put your Switch should be clean, smooth, level, and sturdy. Make sure there is enough clearance around the Switch to allow attachment of cables, power cord and air circulation.

3.2Attaching Rubber Feet

1.Make sure mounting surface on the bottom of the switch is grease and dust free.

2.Remove adhesive backing from your rubber feet.

3.Apply the rubber feet to each corner on the bottom of the switch. These footpads can prevent the switch from shock/vibration.

3.3Power On

Connect the power cord to the power socket on the rear panel of the Switch. The other side of power cord connects to the power outlet. The internal power works with AC in the voltage range 90-240VAC, frequency 50~60Hz. Check the power indicator on the front panel to see if power is properly supplied.

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Chapter 4 Network Application

This section provides you a few samples of network topology in which the switch is used.

In general, the CWGE9MS managed Ethernet switch is designed to be used as a desktop or segment switch.

4.1 Desktop Application

The CWGE9MS managed Ethernet switch is designed to be a desktop size switch that is an ideal solution for small workgroup. The switch can be used as a standalone switch to which personal computers, server, printer server are directly connected to form small workgroup.

4.2 Segment Application

For enterprise networks where large data broadcast are constantly processed, this switch is suitable for department user to connect to the corporate backbone.

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You can use the CWGE9MS managed Ethernet switch to connect PCs, workstations, and servers to each other by connecting these devices directly to the switch. All the devices in this network can communicate with each other. Connecting servers to the backbone switch allow other users to access the server’s data.

The switch automatically learns node address, which are subsequently used to filter and forward all traffic based on the destination address. You can use any of the RJ45 port of the CWGE9MS managed Ethernet switch to connect with another Switch or Hub to interconnect each of your small-switched workgroups to form a larger switched network.

4.3 X-Ring Application

This industrial switch supports the X-Ring protocol that can help the network system to recovery from network connection failure within 300ms, making the network system more reliable. The X-Ring algorithm is similar to spanning tree protocol (STP) algorithm but the recovery time is faster than STP. The following figure is a sample X-Ring configuration.

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[NOTE]

When the X-Ring function is enabled, the user must disable the RSTP. The X-Ring function and RSTP function cannot operate simultaneously.

With X-Ring topology, every switch enables the X-Ring function and assigns two member ports in the ring. Only one switch in the X-Ring group would be the backup switch with one of the two member ports’ being a backup port then switches are called working switches’ working ports. When the network connection fails, the backup port will automatically become a working port to the failure. In the X-Ring group, switches are setting in “slave mode” by default, but one must be the “master mode”. If there are 2 or more switches in the master mode, then software will automatically select the switch with lowest MAC address number as the ring master. The ringmaster has the rights to negotiate and command to other switches in the X-Ring group.

If a link fails the ringmaster is alerted and invokes its secondary port to rebuild the

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network detection of the failed link’s activation of the master’s backup link and address table. If the failed link is restored, the ring slaves will alert the ringmaster to restore normal operation by disabling the backup link on the network in less than 300ms.

4.4 Coupling Ring Application

Within the network there may be more than one X-Ring group. By using the coupling ring function, it can connect each X-Ring for redundant backup. It can ensure the transmission between two ring groups will not fail. The following figure is a sample of a coupling ring application. The couple ring consists of four switches—switch 1 through switch 4 that are connected to each other via the paths in red. Please note that the Coupling Ring Backup Path between switch 1 and switch 3 is blocked; it will work only when the path between switch 2 and switch 4 is broken or disconnected.

4.5 Dual Homing Application

It provides the connection loss from between X-Ring group and an upper level/core switch. Assign two ports to be the Dual Homing port that is backup port in the X-Ring group. The Dual Homing function only works when the X-Ring function is active. Each X-Ring group only has one Dual Homing port.

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Chapter 5 Console Management

5.1 Connecting to the Console Port

Use the supplied RS-232 cable to connect a terminal or PC to the console port. The terminal or PC to be connected must support the terminal emulation program.

Connecting the switch to a terminal via RS-232 cable

5.2 Login in the Console Interface

When the connection between Switch and PC is ready, turn on the PC and run a terminal emulation program or Hyper Terminal and configure its communication parameters to match the following default characteristics of the console port:

Baud Rate: 9600 bps

Data Bits: 8

Parity: none

Stop Bit: 1

Flow control: None

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The settings of communication parameters

After finished the parameter settings, select “OK“. When the blank screen shows up, press Enter key to bring out the login prompt. Key in the “admin“ (default value) for the both User name and Password (use Enter key to switch), then press Enter key and the

Main Menu of console management appears. Please see below figure for login screen.

Console login interface

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5.3 CLI Management

The system supports two types of console management – CLI command. After you login to the system, you will see a command prompt. To enter CLI management interface, enter “enable” command. The following table lists the CLI commands and description.

Commands Level

Modes	Access Method	Prompt	Exit Method	About This Mode1
User EXEC	Begin a session	switch>	Enter logout	The user commands
	with your		or quit.	available at the user level
	switch.			are a subset of those
				available at the privileged
				level.
				Use this mode to
				• Perform basic tests.
				• Display system
				information.
Privileged	Enter the	switch#	Enter	The privileged command is
EXEC	enable		disable to	advance mode
	command while		exit.	Privileged this mode to
	in user EXEC			• Display advance function
	mode.			status
				• Save configures
Global	Enter the	switch	To exit to	Use this mode to configure
Configuration	configure	(config)#	privileged	parameters that apply to
	command while		EXEC	your switch as a whole.
	in privileged		mode, enter
	EXEC mode.		exit or end

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VLAN	Enter the vlan	switch	To exit to	Use this mode to configure
database	database	(vlan)#	user EXEC	VLAN-specific parameters.
	command while		mode, enter
	in privileged		exit.
	EXEC mode.
Interface	Enter the	switch	To exit to	Use this mode to configure
configuration	interface	(config-if)#	global	parameters for the switch
	command (with		configuration	and Ethernet ports.
	a specific		mode, enter
	interface) while		exit. To exit
	in global		to privileged
	configuration		EXEC mode,
	mode		enter end.

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Chapter 6 Web-Based Management

This section introduces the configuration and functions of the Web-based management.

6.1 About Web-based Management

Inside the CPU board of the switch exists an embedded HTML web site residing in flash memory. It offers advanced management features and allow users to manage the switch from anywhere on the network through a standard browser such as Microsoft Internet Explorer.

The Web-Based Management supports Internet Explorer 5.0. It is based on Java Applets with an aim to reduce network bandwidth consumption, enhance access speed and present an easy viewing screen.

[NOTE]: By default, IE5.0 or later version does not allow Java Applets to open sockets.

The user has to explicitly modify the browser setting to enable Java Applets to use network ports.

6.2 Preparing for Web Management

Before using web management, you can use console to login to the switch and check the default IP Address of the switch. Please refer to the Console Management Chapter for console login information. If you need to change the IP address the first time, you can use the console management mode to modify it. The default value is as below:

IP Address: 192.168.10.1 Subnet Mask: 255.255.255.0

Default Gateway: 192.168.10.254

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User Name: admin Password: admin

6.3System Login

1.Launch the Internet Explorer on the PC

2.Key in “http:// “+” the IP address of the switch”, and then Press “Enter”.

Uniform Resource Locator

3.The login screen appears right after.

4.Key in the user name and password. The default user name and password are the same as ‘admin’

5.Press Enter or select OK button, and then the home screen of the Web-based management shows up.

Login screen

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6.4 System Information

Assign the system name and location and view the system information.

!System Name: Assign the system name of the switch (The maximum length is 64 bytes)

!System Description: Describes the switch.

!System Location: Assign the switch physical location (The maximum length is 64 bytes).

!System Contact: Enter the name of contact person or organization.

!Firmware Version: Displays the switch’s firmware version

!Kernel Version: Displays the kernel software version

!MAC Address: Displays the unique hardware address assigned by manufacturer (default)

!And than, select button.

6.5IP Configuration

User can configure the IP Settings and DHCP client function here.

!DHCP Client: Enable or disable the DHCP client function. When DHCP client function is enabled, the industrial switch will be assigned an IP address from the network DHCP server. The default IP address will be replaced by the assigned IP address on DHCP server. After the user selects the Apply button, a popup dialog box shows up. It is to inform the user that when the DHCP client is enabled, the current IP address will be lost and user should find the new IP address on the DHCP server.

!IP Address: Assign the IP address that the network is using. If DHCP client function is enabled, and then the user does not need to assign the IP address. The network DHCP server will assign the IP address displaying in this column for the industrial switch. The default IP is 192.168.10.1.

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!Subnet Mask: Assign the subnet mask to the IP address. If DHCP client function is enabled, and then the user does not need to assign the subnet mask.

!Gateway: Assign the network gateway for the industrial switch. The default gateway is 192.168.10.254.

!DNS1: Assign the primary DNS IP address.

!DNS2: Assign the secondary DNS IP address.

!And then, select

IP configuration interface

6.6 DHCP Server

DHCP is the abbreviation of Dynamic Host Configuration Protocol that is a protocol for assigning dynamic IP addresses to devices on a network. With dynamic addressing, a device can have a different IP address every time it connects to the network. In some systems, the device's IP address can even change while it is still connected. DHCP also supports a mix of static and dynamic IP addresses. Dynamic addressing simplifies network administration because the software keeps track of IP addresses rather than requiring an administrator to manage the task. This means that a new computer can be added to a network without the hassle of manually assigning it a unique IP Address.

The system provides the DHCP server function. Enable the DHCP server function; the switch system will be a DHCP server.

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6.6.1 System configuration

!DHCP Server: Enable or Disable the DHCP Server function. Enable—the switch will be the DHCP server on your local network.

!Low IP Address: Type in an IP address. Low IP address is the beginning of the dynamic IP range. For example, dynamic IP is in the range between 192.168.1.100

~ 192.168.1.200. In contrast, 192.168.1.100 is the Low IP address.

!High IP Address: Type in an IP address. High IP address is the end of the dynamic IP range. For example, dynamic IP is in the range between 192.168.1.100 ~ 192.168.1.200. In contrast, 192.168.1.200 is the High IP address.

!Subnet Mask: Type in the subnet mask of the IP configuration.

!Gateway: Type in the IP address of the gateway in your network.

!DNS: Type in the Domain Name Server IP Address in your network.

!Lease Time (sec): It is the time period that system will reset the dynamic IP assignment to ensure the dynamic IP will not been occupied for a long time or the server doesn’t know that the dynamic IP is idle.

!And then, select

DHCP Server Configuration interface

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6.6.2 Client Entries

When the DHCP server function is active, the system will collect the DHCP client information and displays it at this tab.

DHCP Client Entries interface

6.6.3 Port and IP Bindings

Assign the dynamic IP address to the port. When the device is connecting to the port and asks for IP assigning, the system will assign the IP address that has been assigned before to the connected device.

Port and IP Bindings interface

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