D-Link DSL-2750E User Manual

D-Link DSL-2750E

Wireless N 30 0 ADSL2+ Modem Router

User Manual

RECYCLABLE

2013/0 /184

Ver. 1.00

DSL2750E User Manual

Contents

1	Introduction ........................................................................................................			1
	1.1	Packing List ...........................................................................................		1
	1.2	Safety Precautions ................................................................................		1
	1.3	LEDs and Interfaces..............................................................................		2
	1.4	System Requirements ...........................................................................		4
	1.5	Features ................................................................................................		4
2	Hardware Installation .........................................................................................			6
	2.1	DSL Uplink Connection .........................................................................		6
3	Web Configuration .............................................................................................			7
	3.1	Accessing the Device ............................................................................		7
	3.2	Setup .....................................................................................................		7
		3.2.1	Wizard.........................................................................................	7
		3.2.2	Internet Setup ...........................................................................	12
		3.2.3	Wireless....................................................................................	18
		3.2.4	Local Network...........................................................................	24
		3.2.5	LAN IPv6...................................................................................	27
		3.2.6	Time and Date ..........................................................................	28
		3.2.7	Logout.......................................................................................	29
	3.3	Advanced.............................................................................................		29
		3.3.1	Advanced Wireless...................................................................	29
		3.3.2	Port Forwarding ........................................................................	36
		3.3.3	DMZ..........................................................................................	37
		3.3.4	SAMBA .....................................................................................	38
		3.3.5	3G Configuration.......................................................................	39
		3.3.6	Parental Control........................................................................	47
		3.3.7	Filtering Options........................................................................	51
		3.3.8	QoS Configuration ....................................................................	56
		3.3.9	Firewall Settings .......................................................................	60
		3.3.10	DNS.....................................................................................	60
		3.3.11	Dynamic DNS......................................................................	61
		3.3.12	Network Tools......................................................................	63
		3.3.13	Routing................................................................................	70
		3.3.14	Schedules............................................................................	74
		3.3.15	NAT .....................................................................................	75

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	3.3.16	FTPD Setting .......................................................................	77
	3.3.17	FTPD Account .....................................................................	77
	3.3.18	IP Tunnel .............................................................................	78
	3.3.19	Logout .................................................................................	82
3.4	Management........................................................................................		83
	3.4.1	Global IPv6 ...............................................................................	83
	3.4.2	System Management ................................................................	83
	3.4.3	Firmware Update ......................................................................	85
	3.4.4	Access Controls ........................................................................	86
	3.4.5	Diagnosis ..................................................................................	89
	3.4.6	Log Configuration .....................................................................	92
	3.4.7	Logout .......................................................................................	93
3.5	Status	...................................................................................................	94
	3.5.1	Device Info ................................................................................	94
	3.5.2	Wireless Clients ........................................................................	95
	3.5.3 ............................................................................	DHCP Clients	95
	3.5.4 ................................................................................	IPv6 Status	95
	3.5.5 ..........................................................................................	Logs	96
	3.5.6 .............................................................................	Firewall Logs	97
	3.5.7 ....................................................................................	Statistics	97
	3.5.8 .................................................................................	Route Info	98
	3.5.9 .......................................................................................	Logout	99
3.6	Help .....................................................................................................		99

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1 Introduction

The DSL-2750E supports multiple line modes.	four 10/100With base-T Ethernet
interfaces at the user end, the device provide	speed ADSLs broadbandhigh-

connection to the Internet or Intranet for high-end users like net bars and office users. It provides high performance access to the Internet with a

rate of 24 Mbps and	an upstrrateamof 1 Mbps. It supports 3G WAN, 3G
backup, Samba for	USB storage and IPV6.
The device suppor	ts WLAN access	, such as WLANdeviceAP or,theWLANto
I nternet. It complies with specifications of IEEE 802.11			, 802.11b/g/n, WEP, WPA,
and WPA2 security.

1.1 Packing List

1 x DSL-2750E

1 x external splitter

1 x power adapter

	1 x telephone cables	-11)	(RJ
	1 x Ethernet cable	-45)	(RJ

1 xQIG

1 X CD

1.2	Safety Precautions
Take the following instruction		even sttotheprdevice from risks and damage
caused by fire electricor power:
	Use the type of power	ed in the volumemark label.
	Use the power adapter in the product kage.		pac
	Pay attention to the power load of the outlet or prolonged lines. An
	overburden power outlet or damaged lines or plugs may cause electric
	shock or fire accidents. Check the power cords regularly. If you find any
	damage, replace it at once.
	Proper space left for heat	ation is necedissaryip to avoid damage

caused by overheating to the device. The long and thin holes on the

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	are designed for heat	ation todissipensure that the device works normally.
	Do not cover these heat	ation holediss.ip
	Do not put this device close to a heat source		under a high temperatureor
	occurs. Keep the device	away	from direct sunshine.

Do not put this device close to an overdamp or watery place. Do not spill fluid on this device.

Do not connect this device to a PC or electronic product unless instructed

by our customer engineer or your broadband provider. Wrong connection may cause power or fire risk.

Do not place this device on an unstable surface or support.

1.3 LEDs and Interfaces

Note:

The figures in this document are for reference only.

Front P anel

Figure 1 Front panel

The following table describes the LEDs of the device.

LED	Color	Status		Description
		Off	The power is off.
	Green	On	The power is on and the				ialization isinit
			normal.
Power
	Red	On	The device		isiatinginit .
		Blinks	The	firmware	is	upgrading.
		Off	No LAN link.
LAN		Blinks	Data	is being	transmitted		through	the
	Green		LAN interface.
1/2/3/4
		On	The	connection of		LAN	interface	is
			normal.

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	LED	Color	Status		Description
			Blinks	D ata is	transmitted	through the WLAN
				interface.
	WLAN	Green	On	The connection of		WLAN interface is
				normal.
			Off	The WLAN connection is not established.
			Blinks	WPS negotiation is enabled, waiting for
				the clients.
		Blue
	WPS		Off	WPS negotiation is not enabled on the
				device.
			On	The connection of 3G or USB flash disk
				has been established.
	USB	Green	Blinking	Data is being transmitted.
			Off	The connection of 3G or USB flash disk
				is not established.
			Off	Initial self-test is failed.
		Green	Blinks	The device is detecting itself.
	DSL		On	Initial self	-t est of the unit has passed			an
				is ready.
				The device is under the Bridge mode			,
			Off	DSL connection is not present, or the
		Green		power is off.
			Blinks	Internet data is being transmitted in the
	Internet			routing mode.
			On	The IP is connected.
		Red	On	The device is attempted to become IP
				connected, but failed.

Rear P anel

Figure 2 Rear panel

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The following	describestable the interface of the device.
Interface/Button			Description
DSL		RJ-11 interface that connects to the telephone set through
		the telephone cable.
LAN4/3/2/1		Ethernet RJ-45 interfaces that connect to the Ethernet
		interfaces of computers or Ethernet devices.
USB		USB port, for connecting the 3G network card or other USB
		storage devices.
WPS		Press the button for 1 second to enable WPS function.
WIR ELESS		Press the button silently to enable WLAN function.
ON/OFF
ON/OFF		Power on	ffortheo device.
12V DC IN		Interface that connects to the power adapter. The			power
		adapter output is: 12V DC 1A.
Reset (on the		Reset to the factory defaults. To restore factory defaults,
		keep the device powered on and push a paper clip into the
bottom case)
		hole. Press down the button		second andfor 1	then release.

1.4 System Requirements

A 10 baseT/100BaseT Ethernet card

is installed on your PC.

A hub or switch (attached to several PCs through one of Ethernet interfaces on the device)

Operating system: Windows Vista, Windows 7, Windows 98SE, Windows 2000, Windows ME or Windows XP

Internet Explorer V5.0 or higher, Netscape V4.0 or higher, or Firefox 1.5 or higher

1.5 Feature s

Various line modes

External PPPoE dial-up access

Internal PPPoE and PPPoA dial-up access

Leased line mode

1483B, 1483R, and MER access

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Multiple PVCs (eight at most) and these PVCs can be isolated from each other

A single PVC with multiple sessions

Multiple PVCs with multiple sessions

Binding of portswith PVCs

802.1Q and 802.1P protocol

DHCP server

NAT and NAPT

Static route

Firmware upgrade: Web, TFTP, FTP

Reset to the factory defaults

DNS relay

Virtual server

DMZ

	Two-level passwords and user		names
	Web user inte	rface

Telnet CLI

System status display

PPP session PAP and CHAP

IP filter

IP QoS

Remote access control

Line connection status test

Remote management elnet and HTTP)(t

Backup and restoration of configuration file

Ethernet interface supports crossover detection, auto-correction and polarity correction

UPnP

IPV6

3G WANand 3G Backup

Samba for

storageUSB

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l

2Hardware Installation

2.1DSL Uplink Connection

Step 1	Connect the		portDSLof the device and the		Modem	port of the splitt
	with a	telephone cable		. Connect the phonehonetoportthe of the		P
	splitter through a telephone cable. Connect the incoming line to the
	Line port of the splitter.
	The splitter has three ports:
		Line: Connect to a wall phone port -11 jack).			(RJ
		Modem: Connect to the DSL port of the device.
		Phone: Connect to a telephone set.
Step 2	Connect a		portLANof the device to the network card of the PC
	through an Ethernet cable (MDI/MDIX).

Note:

Use twisted - pair cables to connect the deviceHubto aor switch.

Step 3 Plug one end of the power adapter to the wall outlet and the other end to the Powerport of the device.

Figure 3 displays the application diagram for the connection of the device, PC, splitter and telephone sets, when no telephone set is placed before the splitter.

Figure 3 Connection diagram

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3	Web Configuration
This chapter describes how to configure the device by using the				Web-based
configuration utility.
3.1	Accessing the Device
The following is the detailed description of accesing the device for the first time.
Step 1 Open the Internet Explorer (IE)		browser and http://192enter		.168.1.1.
Step 2 The Login page shown in the following figure appears. Ent
	name and password and click	Login .
	The user name and password of the super user are
	admin .

3.2Setup

3.2.1Wizard

After login, the Wizardpage under Setup tab appears.

Wizard enables fast and accurate configuration of Internet connection and other important parameters. The following sections describe configuration parameters. When subscribing to a broadband service, you should be aware of the method

by which you are connected to the Internet. Your physical WAN device can be

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Ethernet, DSL, or both. Technical information		the	properties of		aboutyour
Internet connection is provided by your Internet		service	p	rovider	(ISP). For
example, your ISP should inform you whether you are connected to the Internet
using a static or dynamic IP address, or	protocol, such asthePPPo A or PPPoE,
that you use to communicate over the Internet.

Click Setup Wizard

. The page shown in the following figure appears.

There are 5 steps to configu the device. Clickre	to continueNext .
Step 1 Set the time and date.

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Step 2 Configure the Internet connection.

Click Next after time and date setting and the following page appears. page, you can set the internet connection.

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The following table describes the fields in this page.
	Field		Description
	Country	Select the country you located from the drop-down list.
	ISP	Select the ISP you subscribed the internet service
		from.
	Protocol	Select the protocol you subscribed from your ISP.
	Encapsulation	Select the method of encapsulation provided			by you
	Mode	ISP. You can select LLC or VCMUX.
		VPI: The virtual path between two points in an ATM
		network. I	ts validluevais from	0 to 255 .
	PVC Settings	VCI : The virtual channel between two pointsnian ATM
		network, ranging from		32(0 toto3165535is reserved
		for local management of ATM traffic).

Note :

Different protocol requires entering different information. You can fill in the entries according to what your ISP provides you.

Click Next. The page shown in the following page appears.

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Step 3 Configure the wireless network. Enter the information and click	to	Next
go to the next step.

Step 4 Change or create the password of an account. Click	to go to the	Next
next step.

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Step 5 Click Apply to save the settings.

Note :

In each step of the Wizard page		Back, youtocanreviewclickor
modify the previous	settings.Click Cancel to exit	thewizard page.

3.2.2Internet Setup

Choose Setup Internet>	Setup	. The page shownfollowing figuretheappears.
In this page, you can configure the		WAN interface of the device.

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Click Add and the page shown in the following figure appears.

The following table describes the parameters in this page.

Field			Description
	VPI: The virtual path between two points in an ATM
	network. I		ts validluevais from		0 to 255 .
PVC Settings		VCI : The virtual channel between two pointsnian ATM
		network, ranging from			32(0 toto3165535is reserved
		for local management of ATM traffic).
		The values of VPI and VCI are provided by your ISP.
		You can select from the drop-down list.
Service
Category

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Field		Description
		Selected the protocol you subscribed from your ISP. It
		displays the protocol type used for this WAN connection.
Protocol

Encapsulation	Select the method of encapsulation	by your ISPprovided.
Mode	You can select LLC or VCMUX.
802.1Q VLAN	You can enable or disable this function. The value ranges
ID	from 1 to 4094 . 0Valuemeans to disable this function.

- PPPoE	or PPPoA
I f the protocol is selected to be		PPP over Ethernetor PPP(PPPover ATM	oE)
(PPPoA), the following page appears.

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The following table describes the parameters of this page

Field	Description
PPP Username	The correct user name provided by your ISP.
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	Field		Description
	PPP Password	The correct password provided by your ISP
	Authentication	To authenticate whether the PPP username and
		password are correct. The value can be AUTO,			PAP,
	Method
		CHAP or MS-CHAP. Usually, you can			select AUTO.
		AlwaysOn: If you select it, the			system
		automatically establishes a connection. If
		network is	disconnected	becauseofext rnal
		factors when you are using the Internet access
		service, the system tries connection every certain
		time (for example, 10 seconds) until the connection
		is established. If you pay for Internet access in the
		mont hly fee mode, you are recommended to use
		this connection mode.
	Dial-up mode	OnDemand:	If you select it,	the	system
		automatically establishes a connection when a
		network access request from the LAN is received. If
		no network access request is sent from the LAN
		within the set time of Idle Timeout			, the system
		automatically interrupts the connection. If you pay
		for Internet access by time, you are recommended
		to use this connection mode, which effectively
		saves the expense of Internet access.
		Manual: If you select it, you need to manually set
		dialup connection after startup.
	MRU Size	You can keep it as default.
		If this function is disabled, the modem obtains an IP
	Use Static IP	address assigned by an uplink equipment such as
		BAS , through PPPoE dial-up. If this function is
	Address
		enabled, the modem uses this IP address as the WAN
		IP address.
		NAT is one where all requests from the same internal
		IP address and port are mapped to the same external
	Enable NAT	IP address and port. Furthermore, any external host
		can send a	tpacketo the internal host, by sending a
		packet to the mapped external address.
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DSL2750E User Manual

- MAC Encapsulation Routing /IPoA

C hoose Protocol to beMAC Encapsulation Routing or IP over ATM (IPoA), and the following page appears.

The following table describes the parameters of this page

Field	Description
WAN IP	Enter the WAN IP address provided by the ISP.
Address
WAN Subnet	Enter the WAN subnet mask provided by the ISP. It
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	Field	Description
	Mask	varies depending on the network type. It is usually
		255.255.255.0
	Default	Enter the IP address of the gateway provided by the
	Gateway	ISP. It is the IP address used for connecting to the ISP.
	Preferred DNS	Enter the IP address of the primary DNS server if
	Server	necessary
	Alternate DNS	If the ISP provides another DNS server, enter the
	Server	address of that DNS server.

After setting, click Apply to make the settings take effect.

3.2.3Wireless

This section describes the wireless LAN and basic configuration. A wireless LAN can be as simple as t o computersw with wireless LAN cards communicating in a pear-to-pear network or as complex as a number of computers with wireless LAN

cards communicating through	p oints whichaccessbridge network traffic to wired
LAN.
Choose Setup Wireless>	. The	Wirelpagesshown in the following figure
appears.

3.2.3.1

Wireless Basic

s

In the Wirelesspage, click Wireless Basic The page. shown in the following figure appears. In this page , you canconfigure the parameters of wireless LAN clients that may connect to the device.

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The following table describes the parameters in this page.

Field		Description
Enable	Select this to turn Wi-Fi on.
Wireless
Enable MultiAP	Select this to turn MultiAP isolation on.
Isolation
	The Wireless Network Name is a unique name that
Wireless	identifies a network. All devices on a network must
	share the same wireless network name in order to
Network Name
	communicate on the network. If you decide to change
(SSID)
	the wireless network name from the default setting,
	enter your new wireless network name in this field.
Visibility Status	Select	Visible , the SSID can be detected. Select
	Invisible, the SSID cannot be detected.
Country	Select the country you located from the drop-down list.
Control	Choose the channel selection mode as		or	Upper
Sideband	Lower.
Wireless	Select the wireless channel from the pull-down menu.
Channel	It is different for different country.
802.11 Mode	Select the appropriate 802.11 mode based on the

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	Field				Description
			wireless clients in your network. It is recommended to
			keep it as default.
	Band	Width	Select the appropriate band of 20M, 40			M 20M/40Mor
			according to your subscribed broadband service.
There is a		Dimension2-		Code on the right of the page. his code canT help your
cellphone		connect	to the wireless network of DSL 2750E			automatically by -
shooting the 2-Dimension code					the cellphonewith.

Note:

A cellphone	can not connect to the wireless network	unless a
2- Dimensioncode software is installed on your cellphone		.
Click Apply to	savethe settings.

3.2.3.2Wireless Security

In the	Wirelesspage, click Wireless Security. The page shown in	thewingfollo
figure appears. Wireless security is vital to your network to		prot
communication among wireless stations, access points and wired network.

If the Security Mode is set to be

WEP , the following page appears.

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The following table describes the parameters of this page.

Field		Description
	Configure the wireless encryption mode. You can
	choose	None, WEP Auto,	(WPA or WPA2), WPA
	2 Only or WPA Only.
	Wired	equivalent privacy (WEP) encrypts
Security Mode	data frames before transmitting over the wireless
	network.
	Wi Fi-	protected a	(WPA)ccess is a subset of
	the IEEE802.11i security specification draft.
	WPA2 Mixed is the collection of WPA and

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	Field		Description
		WPA2 encryption modes. The wireless client
		establishes the connection between the modem
		through WPA or WPA2.
		Key differences between WPA and WEP are user
		authentication and improved data encryption.
	WEP Key Length	Choose the WEP key length. You can Choose
		64-bit or 128-bit.
	Choose WEP Key	Choose the index of WEP Key. You can choose
		Key 1, 2 , 3 or	4 .
		The Encryption keys are used to encrypt the data.
	WEP Key 1/2/3/4	Both the modem and wireless stations must use
		the same encryption key for data transmission.
		The default key 1 is 1234567890.
		There are 2 authentications in WEP encryption.
	Authentication	Open and Share key. Both authentications
		support WEP encryption. ut the messageB header
		is different in wireless broadcast.

I f the Security Mode is set to beAuto (WPA or WPA2), WPA2 only, or WPA only, the following page appears.

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The above figure shows the when the					is setSecurityas AutMode(WPA or
WPA2). The following table describes the parameters in this page.
	Field			Description
	WPA	You can select WPA encryption to be AES				or
	Encryption	TKIP+AES.
			Select Auto (WPA or		WPA2)-PSK,	enter the
		pre-shared key in the		-SharedPreKey		field.
			Select Auto	(WPA	or WPA2)		-Enterprise
	WPA Mode	(RADIUS), enter the port, IP address, and password of
		the Radius server. You need to enter the username
		and password provided by the Radius server when the
		wireless client connects the modem.
	Group Key	When WPA encryption is applied, messages sent are

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	Field	Description
	Update Interval	encrypted with a password. For higher security, WPA
		password is updated periodically. This value is the
		update interval of the WPA password.

Click Apply to savethe settings.

3.2.4Local Network

You can configure the LAN IP address according to the actual application. The preset IP address is 192.168.1.1. You can use the default settings and DHCP

service to	managetheIP settings for the private network. The IP address of					the
device is the base address used for DHCP. To use the				deviceforDHCP on your
LAN, the IP address pool used for DHCP must be compatible with the IP address
of the device. The IP address available in the DHCP IP address pool change
automatically if you change the IP address of the				.	device
You can also enable the secondary LAN IP address. The two LAN IP addresses
must be in different networks.
Choose Setup	Local>	Network	. The	LocalpagNetworkshown	in	the

following figure appears.

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The following table describes the parameters in this page

	Field		Description
		Enter the IP address of LAN interface. It is
	Router IP Address	recommended to use an address from a block that is
		reserved for private use. This address block is
		192.168.1.1- 192.168.255.254.
	Subnet Mask	Enter the subnet mask of LAN interface. The range of
		subnet mask is from	255255.255.255.0.2550.254-.
		Enter the domain name if you know. If you leave this
		blank, the domain name obtained by DHCP from the
	Domin Name	ISP is used. You must enter host name		(system
		name) on each individual PC. The domain name can
		be assigned from the router through the DHCP

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	Field	Description
		server.
	Configure the	Select it to enable the secondary LAN IP address.
	second IP Address	The two LAN IP addresses must be in the different
	and Subnet Mask	network.
	for LAN
		Enable the router to assign IP addresses, IP default
	Enable DHCP	gateway and DNS Servers to	Windows95,thehost in
	Server	Windows NT and other operation systems that
		support the DHCP client.
	DHCP IP Address	It specifies the first IP address	the IP addressin pool.
		The router assigns IP address that base on the IP
	Range
		pool range to the host.
		The lease time determines the period that the host
	DHCP Lease Time	retains the assigned IP addresses before the			IP
		addresses change.

Click Apply to make the settings take effect.

The DHCP RESERVATIONS LISTshown in the following figure appears.

Click Add to add DHCP (optional). The page shown in the following figure appears.

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Select	Enableto reserve the	IP address for the designated PC with the
configured MAC address. The			Comhelputers youNameto recognize the PC
with the MAC address, for example, Father’s Laptop.				Apply to save the		Click
settings.
After the DHCP reservation is saved, the			DHCPreservations list		displaysthe
configuration.

3.2.5LAN IPv6

Choose SetupLAN IPv6> . The page shown in the following figure appears. page allows you to config IPv6 LAN.

The following table describes the parameters of this page.

Field	Description
IPv6 Interface	The address through which PCs access the
Address	gateway. For example, 192.168.1.1.
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