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Wireless N300 ADSL2+ Modem Router
User Manual
DSL-2750B
Version 1.00 | 05/14/2015
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iD-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
D-Link reserves the right to revise this publication and to make changes in the content hereof without obligation to notify any person or organization
of such revisions or changes.
Manual Revisions
Revision Date Description
1.00 May 15, 2015 • Release for revision E1
Trademarks
D-Link and the D-Link logo are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the United States or other countries.
All other company or product names mentioned herein are trademarks or registered trademarks of their respective companies.
Apple®, Apple logo®, Safari®, iPhone®, iPad®, iPod touch® and Macintosh® are trademarks of Apple Inc., registered in the U.S. and other countries. App
Store
SM
is a service mark of Apple Inc. Chrome™ browser, Google Play™ and Android™ are trademarks of Google Inc. Internet Explorer®, Windows®
and the Windows logo are trademarks of the Microsoft group of companies.
Copyright © 2015 by D-Link Corporation, Inc. All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed
written permission from D-Link Corporation, Inc.
Power Usage
This device is an Energy Related Product (ErP) that automatically switches to a power-saving Network Standby mode within 1 minute of no packets
being transmitted. It can also be turned o through a power switch to save energy when it is not needed.
Network Standby: 4.58 W
Switched O: 0.23 W
Preface
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iiD-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Table of Contents
Product Overview ..............................................................1
Package Contents ......................................................................... 1
System Requirements ................................................................. 2
Introduction ................................................................................... 3
Features ............................................................................................ 4
LEDs ........................................................................................... 5
Back............................................................................................6
Installation ......................................................................... 7
Before you Begin ...........................................................................7
Wireless Installation Considerations ...................................... 8
Hardware Installation .................................................................. 9
Getting Started ................................................................ 10
Web-based Conguration Utility ..........................................10
Setup Wizard ................................................................................11
Conguration ...................................................................17
Setup ...............................................................................................17
Internet Setup ......................................................................18
2.4G Wireless ........................................................................20
2.4G Wireless Security ..................................................21
Local Network ......................................................................22
Local IPv6 Network.............................................................24
USB Setup ..............................................................................25
Time and Date ......................................................................26
Logout ....................................................................................27
Advanced ......................................................................................28
2.4G Advanced Wireless ...................................................28
Advanced Settings ........................................................29
MAC Filtering ...................................................................31
Security Settings ............................................................32
WPS Settings ...................................................................33
ALG ...........................................................................................34
FTP ............................................................................................35
Port Forwarding ..................................................................36
Port Trigger ...........................................................................37
DMZ .........................................................................................38
SAMBA ....................................................................................39
3G WAN Conguration ......................................................40
Parental Control ..................................................................42
Website Filter ...................................................................43
HTTP Content Filter .......................................................44
MAC Filter .........................................................................45
Filtering Options .................................................................46
IPv4 Filtering ....................................................................47
IPv6 Filtering ....................................................................48
QoS...........................................................................................49
Add QoS Classication Rules .....................................50
Anti-Attack Settings ...........................................................52
Share Protection ..................................................................53
DNS ..........................................................................................54
Dynamic DNS .......................................................................55
Network Tools ......................................................................56
Port Mapping ..................................................................57
Table of Contents
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iiiD-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Table of Contents
IGMP Proxy .......................................................................58
IGMP Snooping ...............................................................59
MLD Conguration ........................................................60
UPnP ...................................................................................61
DSL ......................................................................................62
Routing ...................................................................................63
Static Route ......................................................................64
IPv6 Static Route ............................................................65
Policy Route .....................................................................66
RIP ........................................................................................67
RIPng ..................................................................................68
Schedules ..............................................................................69
NAT ...........................................................................................70
Management ................................................................................71
System ....................................................................................71
Firmware Update ................................................................72
Access Controls ....................................................................73
Account Password .........................................................74
Local Access Control .....................................................75
Remote Access Control ................................................76
IP Address .........................................................................77
Diagnostics ...........................................................................78
DSL Test .............................................................................79
Traceroute.........................................................................80
Ping .....................................................................................81
System Log ............................................................................82
Status ..............................................................................................83
Device Info ............................................................................83
Wireless Clients ....................................................................84
DHCP Clients ........................................................................85
Logs .........................................................................................86
Statistics .................................................................................87
Route Info ..............................................................................88
Help .................................................................................................89
Connect a Wireless Client to your Router ......................90
WPS Button ...................................................................................90
Windows® 8 ...................................................................................91
WPA/WPA2 ............................................................................91
Windows® 7 ...................................................................................93
WPA/WPA2 ............................................................................93
Windows Vista® ............................................................................96
WPA/WPA2 ............................................................................97
Windows® XP ................................................................................99
WPA/WPA2 ......................................................................... 100
Troubleshooting ............................................................102
Wireless Basics ...............................................................106
What is Wireless? ...................................................................... 107
Tips ................................................................................................109
Wireless Modes .........................................................................110
Networking Basics .........................................................111
Check your IP address ............................................................ 111
Statically assign an IP address .............................................112
Technical Specications ................................................113
Regulatory Information ................................................114
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1D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Product Overview
Package Contents
Note: Using a power supply with a dierent voltage rating than the one included with the device will cause damage and void the warranty for this product.
If any of the above items are missing, please contact your reseller.
Wireless N300 ADSL2+ Modem Router
Ethernet Cable
Power Adapter
CD-ROM
ADSL Telephone Cable
Quick Installation Guide
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2D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Network Requirements
• An ADSL Internet service
• IEEE 802.11b, 802.11g or 802.11n wireless clients
• 10/100 Ethernet
Web-based Conguration
Utility Requirements
Computer with the following:
• Windows®, Macintosh, or Linux-based operating system
• An installed Ethernet adapter
Browser Requirements:
Microsoft Internet Explorer® v7, Mozilla® Firefox® v9.0,
Google® Chrome 16.0, or Safari® v4 or later
Windows
®
Users: Make sure you have the latest version of Java
installed. Visit www.java.com to download the latest version.
System Requirements
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3D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Introduction
The DSL-2750B Wireless N300 ADSL2+ Modem Router is a versatile, high-performance router for home and the small oce. With integrated ADSL2/2+
supporting up to 24 Mbps download speed, rewall protection, Quality of Service (QoS), 802.11n wireless LAN and 4 Ethernet switch ports, this
router provides all the functions that a home or small oce needs to establish a secure and high-speed link to the outside world.
High-speed ADSL2/2+ Internet Connection - The latest ADSL2/2+ standards provide Internet transmission of up to 24 Mbps downstream, 1 Mbps
upstream.
High-performance Wireless - Embedded 802.11n technology for high-speed wireless connection, complete compatibility with 802.11b/g wireless
devices
Total Security - Firewall protection from Internet attacks, user access control, WPA/WPA2 wireless security.
Ultimate Wireless Connection with Maximum Security - This router maximizes wireless performance by connecting to computer interfaces
and staying connected from virtually anywhere at home and in the oce. The router can be used with 802.11b/g/n wireless networks to enable
signicantly improved reception. It supports WPA/WPA2 and WEP for exible user access security and data encryption methods.
Firewall Protection & QoS - Security features prevent unauthorized access to your home and oce network, be it from the wireless devices or
from the Internet. The router provides rewall security using Stateful Packet Inspection (SPI) and hacker attack logging for Denial of Service (DoS)
attack protection. SPI inspects the contents of all incoming packet headers before deciding what packets are allowed to pass through. Router
access control is provided with packet ltering based on port and source/destination MAC/IP addresses. For Quality of Service (QoS), the router
supports multiple priority queues to enable a group of home or oce users to experience the benet of smooth network connection of inbound
and outbound data without concern for trac congestion. This QoS feature allows users to enjoy high-speed ADSL transmission for applications
such as VoIP and streaming multimedia over the Internet.
* Maximum wireless signal rate derived from IEEE Standard 802.11b, 802.11g, and 802.11n specications. Actual data throughput will vary. Network conditions and environmental
factors, including volume of network trac, building materials and construction, and network overhead, lower actual data throughput rate. Environmental conditions will
adversely aect wireless signal range.
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4D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
• Faster Wireless Networking - The DSL-2750B provides up to 300 Mbps* wireless connection with other 802.11n
wireless clients. This capability allows users to participate in real-time activities online, such as video streaming,
online gaming, and real-time audio.
• Compatible with 802.11b and 802.11g Devices - The DSL-2750B is still fully compatible with the IEEE 802.11b
and g standards, so you can use keep your existing 802.11b and g devices.
• Precise ATM Trac Shaping - Trac shaping is a method of controlling the ow rate of ATM data cells. This
function helps to establish Quality of Service for ATM data transfer.
• High Performance - Very high rates of data transfer are possible with the router-providing up to 24 Mbps
downstream for ADSL2+.
• Full Network Management - The DSL-2750B incorporates SNMP (Simple Network Management Protocol)
support for web-based management and text-based network management via a Telnet connection.
• Easy Installation - The DSL-2750B uses a web-based graphical user interface program for convenient
management access and easy set up. Any common web browser software can be used to manage the router.
• USB Support - The DSL-2750B provides a USB port for easy le sharing and printer sharing. The DSL-2750B
supports USB storage devices to share les through a SAMBA le server, an FTP server, or a Web le server. It also
supports sharing USB printers to network members. Besides the sharing function, the DSL-2750B also supports
connection to the Internet via a USB 3G modem.
• IPv6 Connection Support – Compatible with IPv6 networks, the DSL-2750B provides several connection types:
Link-local, Static IPv6, DHCPv6, Stateless Autoconguration, PPPoE, IPv6 in IPv4 Tunnel and 6to4.
* Maximum wireless signal rate derived from IEEE Standard 802.11b, 802.11g, and 802.11n specications. Actual data throughput will vary. Network conditions and environmental
factors, including volume of network trac, building materials and construction, and network overhead, lower actual data throughput rate. Environmental conditions will
adversely aect wireless signal range.
Features
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5D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Hardware Overview
LEDs
1 Power LED A solid green light indicates the unit is powered on. A red light indicates device malfunction.
2 LAN LEDs 1-4
A solid green light indicates a valid link on startup. These lights blink when there is activity currently
passing through the Ethernet port.
3 WLAN LED A solid green light indicates a wireless connection. A blinking green light indicates activity on the WLAN.
4 WPS LED
A solid blue light indicates a successful connection with the client. A blinking light indicates WPS is
triggered and looking for a client.
5 USB LED A solid light indicates that the wireless networks are ready.
6 ADSL LED
A solid green light indicates a valid ADSL connection. This will light after the ADSL negotiation process
has been settled. A blinking green light indicates activity on the WAN (ADSL) interface.
7 Internet
A solid green light indicates a successful Internet connection. A blinking light indicates Internet is
connected and data is being transmitted. A red light indicates that IP assignment has failed.
2
4
1 3 55
6
7
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6D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 1 - Product Overview
Hardware Overview
Back
1 Reset Button Insert a paperclip in the hole and wait for several seconds to reset the router to default settings.
2 Power Button Press to power the router on or o.
3 Power Receptor Receptor for the supplied power adapter.
4 USB Port Connect a USB storage device to this port to share media to your network.
5 Wireless On/O Press this button to enable or disable WLAN.
6 WPS Button Press this button to start connecting a WPS-enabled client.
7 Ethernet Ports Connect 10/100 Ethernet devices such as computers, switches, storage (NAS) devices and game consoles.
8 ADSL Port Using the supplied telephone cable, connect your DSL modem to this port.
2
5
6
3
4
7 8
1
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7D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 2 - Installation
Before you Begin
Installation
This section will walk you through the installation process. Placement of the router is very important. Do not place the router
in an enclosed area such as a closet, cabinet, or in the attic or garage.
• Please congure the router with the computer that was last connected directly to your modem.
• You can only use the Ethernet port on your modem. If you were using the USB connection before using the router,
then you must turn o your modem, disconnect the USB cable and connect an Ethernet cable to the Internet port
on the router, and then turn the modem back on. In some cases, you may need to call your ISP to change connection
types (USB to Ethernet).
• If you have DSL and are connecting via PPPoE, make sure you disable or uninstall any PPPoE software such as WinPoET,
BroadJump, or EnterNet 300 from your computer or you will not be able to connect to the Internet.
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Section 2 - Installation
Wireless Installation Considerations
The D-Link wireless router lets you access your network using a wireless connection from virtually anywhere within the
operating range of your wireless network. Keep in mind, however, that the number, thickness and location of walls, ceilings,
or other objects that the wireless signals must pass through, may limit the range. Typical ranges vary depending on the types
of materials and background RF (radio frequency) noise in your home or business. The key to maximizing wireless range is to
follow these basic guidelines:
1. Keep the number of walls and ceilings between the D-Link router and other network devices to a minimum - each wall or
ceiling can reduce your adapter’s range from 3-90 feet (1-30 meters.) Position your devices so that the number of walls or
ceilings is minimized.
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a 45-degree angle appears
to be almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters) thick! Position devices so that the
signal will travel straight through a wall or ceiling (instead of at an angle) for better reception.
3. Building materials make a dierence. A solid metal door or aluminum studs may have a negative eect on range. Try to
position access points, wireless routers, and computers so that the signal passes through drywall or open doorways. Materials
and objects such as glass, steel, metal, walls with insulation, water (sh tanks), mirrors, le cabinets, brick, and concrete will
degrade your wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF noise.
5. If you are using 2.4 GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and home security systems),
your wireless connection may degrade dramatically or drop completely. Make sure your 2.4 GHz phone base is as far away
from your wireless devices as possible. The base transmits a signal even if the phone in not in use.
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9D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 2 - Installation
1. Turn o and unplug your DSL broadband modem. This is required.
Hardware Installation
2. Position your router close to your modem and a computer. Place the router in an open area of your intended
work area for better wireless coverage.
3. Unplug the Ethernet cable from your modem (or existing router if upgrading) that is connected to your computer.
Plug it into the LAN port labeled 1 on the back of your router. The router is now connected to your computer.
Modem
PC
10/100 BASE-TX Cable
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10D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
This wizard is designed to guide you through a step-by-step
process to congure your new D-Link router and connect to the
Internet.
Click the Setup Wizard button to continue.
Web-based Conguration Utility
Getting Started
This section will show you how to congure your D-Link wireless access point using the web-based conguration utility.
If you wish to change the default settings or adjust the
conguration of the DSL-2750B you may use the web-based
conguration utility.
To access the conguration utility, open a web browser such as
Internet Explorer and enter http://192.168.1.1 in the address
eld.
Select admin from the drop-down menu and then enter your
password. The default password is admin. You will be directed
to the Setup Wizard page.
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11D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
Click Setup Wizard to congure your router.
If you want to congure the access point manually without running
the wizard, skip to Conguration on page 17.
Click Next to continue.
Setup Wizard
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12D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
This section of the wizard enables you to use an international time
server to set the internal time and date for the router.
Automatically
Synchronize:
Enable or disable automatic synchronisation with an Internet
Time Server.
1st NTP Time
Server:
Specify an address for the primary Internet Time Server.
2nd NTP Time
Server:
Specify an address for the secondary Internet Time Server.
Time Zone:
Select your time zone from the drop down menu.
Enable
Daylight
Saving:
Enable or disable daylight saving.
Daylight
Saving Start/
End:
Specify the time and date when daylight saving should start/
end.
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Section 3 - Conguration
This section of the wizard enables you to congure your Internet
connection type. Select the appropriate wan connection type which
is provided by your ISP.
If the router detected or you selected PPPoE or PPPoA, enter your
PPPoE/PPPoA username and password and click Next to continue.
Note: Make sure to remove your PPPoE software from your computer.
The software is no longer needed and will not work through a router.
If the router detected or you selected Static IP, enter your Static IP
information as supplied by your ISP. Click Next to continue.
If the router detected or you selected Bridge or Dynamic IP, click
Next to continue.
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Section 3 - Conguration
This section of the wizard enables you to congure your 2.4 GHz
wireless network and security settings. If you prefer not to, untick
the Enable Your Wireless Network box.
Choose a network name for your wireless network, and choose if you
wish to make the wireless network visible or invisible.
It is highly recommended to secure your wireless network. Select
from the available options, and enter the security key below.
Click Next to continue.
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Section 3 - Conguration
To change the password, enter the Current Password, then enter the
New Password. Finally, re-enter the new password under Conrm
Password.
Click Next to continue.
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16D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
Your router is now set up.
A summary page will be displayed, showing the current settings for
your WAN and 2.4 GHz wireless network. It is recommended that you
make a note of this information for future reference.
Click Finish to save your network settings.
In order for your network settings to take eect the AP will reboot
automatically.
When the device has nished rebooting the main screen will display.
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17D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
Conguration
If you wish to change the default settings or adjust the conguration
of the DSL-2750B you may use the web-based conguration utility. To
access the conguration utility, open a web-browser such as Internet
Explorer and enter the address of the router (http://192.168.1.1).
Select admin from the drop-down menu and then enter your
password. The default password is admin. Click login to proceed to
the web conguration home page.
Setup
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Section 3 - Conguration
Internet Setup
Click Internet Setup on the left menu to congure your connection
manually.
If you want to congure your router to connect to the Internet using
the wizard, click Wizard on the left menu and you will be directed
to the Quick Setup Wizard.
Click the Add button to reveal the DSL conguration options, or click
Edit to change an existing conguration.
The following parameters will be available for conguration:
VPI:
Virtual path identier (VPI) is the virtual path between two
points in an ATM network. Its valid value is between 0 and
255. Enter the correct VPI provided by your ISP. By default, VPI
is set to 1.
VCI:
Virtual channel identier (VCI) is the virtual channel between
two points in an ATM network. Its valid value is between 1 and
65535. Enter the correct VCI provided by your ISP. By default,
VCI is set to 32.
Service
Category:
Select the Quality of Service types for this Virtual Circuit. The
ATM QoS types include CBR (Constant Bit Rate), VBR (Variable
Bit
Rate) and UBR (Unspecied Bit Rate). These QoS types are all
controlled by the parameters specied below, including PCR,
SCR and MBS.
Peak Cell Rate:
Peak cell rate (PCR) is the maximum rate at which cells can be
transmitted along a connection in the ATM network.
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Section 3 - Conguration
Sustainable
Cell Rate:
Sustainable cell rate (SCR) is the maximum rate that trac can
pass over PVC without the risk of cell loss.
Maximum
Burst Size:
Maximum burst size (MBS) is the maximum
number of cells that can be transmitted at the PCR.
Protocol:
Select the appropriate protocol from the drop-down menu. You
can choose between PPPoE/PPPoA, MER, IPoA, or Bridging. The
conguration options will change accordingly.
Encapsulation
Mode:
You can select LLC or VCMUX. In this example, the encapsulation
mode is set to LLC.
802.1Q VLAN
ID:
Select this option to Activate/Deactivate the 4094 VID on the 4
dierent queues. VID (VLAN ID) is the identication of the VLAN,
which is basically used by the standard 802.1Q. It has 12 bits
and allows the identication of 4096 (2^12) VLANs. Of the 4096
possible VIDs, a VID of 0 is used to identify priority frames and
value 4095 (FFF) is reserved, so the maximum possible VLAN
congurations are 4,094
Enable
Service:
Choose to enable or disable the service.
Firewall
Enable:
Choose to enable or disable the rewall.
Service Name:
Enter a name for the service.
Click Apply to save your Internet Setup settings.
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20D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
On this page the user can congure the Wireless settings for this device. There are 2 options to congure 2.4G Wireless Settings.
Firstly, the user can choose to make use of the Wireless Basic settings. Secondly, the user can choose to make use Wireless
Security settings.
2.4G Wireless
Click the Wireless Basic button to view the basic wireless
conguration options .
Enable
Wireless:
Choose to enable or disable the wireless networks.
AP Isolate:
Choose to enable or disable wireless isolation.
SSID:
Enter an SSID for the wireless network.
Visibility
Status:
Choose to enable SSID broadcast so other wireless devices can
nd the network.
Continent/
Country:
Depending on what country the router is used in, regulations
provide for the router to automatically set the transmit power
and frequencies that may be used in that country.
802.11 Mode:
Select from the drop-down menu the mode of operation you
require.
Bandwidth:
Use the drop-down menu to select the channel bandwidth.
Wireless
Channel:
Use the drop-down menu to select a wireless channel, or let
the router scan automatically.
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21D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
Wireless security helps to prevent unauthorized users from accessing your wireless network, or seeing data being passed
between the router and wireless clients. The DSL-2750B supports two popular wireless security protocols, you should select a
protocol based on the wireless clients which will be accessing your network.
Wired Equivalent Privacy (WEP) - This is an older form of wireless security and should only be used if your wireless clients do
not support the newer WPA or WPA2 protocols.
2.4G Wireless Security
Wi-Fi Protected Access (WPA/WPA2) - This is a newer and more secure protocol for wireless security. It uses a cipher combined
with a pre-shared key (password) to encrypt data being sent over the wireless network. It is recommended that you use this
security method if it is supported by your wireless clients.
Wireless
Security
Mode:
Select a wireless security encryption option. You can also
choose to not use one by selecting None, but this is not
recommended.
WPA Mode:
Choose Personal or Enterprise.
Encryption
Mode:
Select TKIP + AES.
Group Key
Update
Interval:
Enter the time in seconds that the group key will be
automatically updated.
Pre-Shared
Key:
Enter a string of 8 characters to set a password for your wireless
network.
RADIUS server
IP Address:
For Enterprise mode, enter the IP address of your network’s
RADIUS server here.
RADIUS server
Port:
Enter the port of your network’s RADIUS server here.
RADIUS server
Shared Secret:
Enter the password of your network’s RADIUS server here.
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22D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
Local Network
When conguring the router for the rst time, we recommend that
you click use the Internet Connection Setup Wizard, and follow
the instructions on the screen. This wizard is designed to assist user
with a quick and easy method to congure the Internet Connectivity
of this router.
Anytime during the Internet Connection Setup Wizard, the user can
click on the Cancel button to discard any changes made and return
to the main page.
Router IP
Address:
Enter the IP address of LAN interface. It is recommended to use
an address from a block reserved for private use. This address
block is 192.168.1.2 - 192.168.1.254.
Subnet Mask:
Enter the subnet mask of LAN interface. The range of subnet
mask is from 255.255.255.0 to 255.255.255.254.
Domain Name:
Enter a domain to be used as a static host name.
Check “Congure the second IP Address and Subnet Mask
for LAN” to enable a local alias IP address if required.
IP Address:
Enter the alias IP address.
Subnet Mask:
Enter the alias subnet mask.
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Section 3 - Conguration
Enable DHCP
Relay:
You can choose Disabled, Enabled or Relay. If set to DHCP
server, the router can assign IP addresses, IP default gateway
and DNS servers to the host.
Relay IP Address:
Enter the desired DHCP relay IP address.
Enable DHCP
Server:
Enable or disable the DHCP server function.
DHCP IP Address
Range:
Enter the range of IP addresses the DHCP server can issue from.
DHCP Lease
Time:
The lease time determines the period that the host retains
the assigned IP addresses before the IP addresses change. The
default is 259200 seconds.
Enable DNS
Relay:
If disabled the router will accept the first received DNS
assignment from one of the PPPoA, PPPoE or MER enabled
PVC(s) during the initial connection setup. If enabled you can
enter the IP addresses for primary and secondary DNS servers.
Preferred DNS
Server:
Enter an address for a preferred DNS server.
Alternate DNS
Server:
Enter an address for an alternate DNS server.
DHCP Client
Class List:
Client-class processing enables the DHCP server to assign the
client an address from a matching scope.
DHCP
Conditional
Option:
Specify the conditions for DHCP class handling.
DHCP
Reservations
List:
Use this option to reserve specic IP addresses.
Number of
Dynamic DHCP
clients:
Dynamic DHCP clients will be listed here with supporting
information.
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24D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
Local IPv6 Network
This section enables you to specify various IPv6 settings.
IPv6 Address:
Use this option to specify a static IPv6 Address.
Enable RADVD:
Enable or disable the Router Advertisement Daemon.
Enable DHCPv6
Server:
Enable or disable the DHCPv6 server function.
Lan Address
Cong Mode:
Select either stateless (host requests) or stateful (server
provisions) LAN IPv6 addressing.
Start/End
Interface ID:
Enter the range of IP addresses the DHCPv6 server can issue
from.
DHCPv6 Lease
Time:
The lease time determines the period that the host retains the
assigned IP addresses before the IP addresses change.
DHCPv6 Valid
Time:
Specify the period for which an assigned IPv6 address remains
valid.
IPv6 DNS Mode:
Allow the router to accept the first received IPv6 DNS
assignment from a WAN connection. Alternatively, you can
manually enter the IP addresses for primary and secondary
IPv6 DNS servers.
WAN Interface:
Specify the WAN interface to be used.
Primary DNS:
Enter an address for a preferred DNS server.
Secondary DNS:
Enter an address for an alternate DNS server.
Get Prex Mode:
Use this option to specify whether IPv6 prex delegation is
assigned manually or via a WAN interface.
WAN Interface:
Specify the WAN interface to be used. for IPv6 prex delegation.
Site Prex:
Manually assign an IPv6 prex delegation.
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Section 3 - Conguration
USB Setup
The DSL router comes with a USB 2.0 interface which you can connect
a USB printer, a USB storage device (e.g. USB disk / USB external hard
disk) or a USB 3G modem.
To congure the USB device on the router, click USB Setup in the
SETUP tab. The router can be congured as a USB network le server
when you plug-in a USB storage device. It can also be congured as
a USB printer server when you plug- in a USB Printer device. Lastly,
it can connect to Internet via 3G network when you plug-in a USB
3G USB Modem.
SAMBA Server:
If you have connected a USB storage device to be used as a
media server, clicking Setup here will take you to SAMBA on
page 39.
FTP Server:
If you have connected a USB storage device to be used as a
le server, clicking Setup here will take you to FTP on page 35.
USB WAN Setup:
If you have connected a 3G USB modem, clicking Setup here
will take you to 3G WAN Conguration on page 40.
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Time and Date
This section enables you to use an international time server to set
the internal time and date for the router.
Automatically
Synchronize:
Enable or disable automatic synchronisation with an Internet
Time Server.
1st NTP Time
Server:
Specify an address for the primary Internet time server.
2nd NTP Time
Server:
Specify an address for the secondary Internet Time Server.
Current Local
Time:
Displays the current local time.
Time Zone:
Select the appropriate time zone for your location. This
information is required to congure the time-based options
for the router.
Enable Daylight
Saving:
Enable or disable daylight saving.
Daylight Saving
Start/End:
Specify the time and date when daylight saving should start/
end.
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Logout
Click Logout when you are done conguring your router.
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Advanced
2.4G Advanced Wireless
This section enables you to ne tune the wireless settings on the
2.4G wireless band.
Click Advanced Settings and refer to Advanced Settings on page
29 for more details.
Click MAC Filtering and refer to MAC Filtering on page 31 for more
details.
Click Security Settings and refer to Security Settings on page 32 for
more details.
Click WPS Setting and refer to WPS Settings on page 33 for more
details.
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Advanced Settings
Enable Wireless:
Choose to enable or disable the wireless networks.
Transmit Power:
Set the transmit power of the antennas in percentage.
Beacon Period:
Beacon Interval range can be set from 20 to 1023.
RTS Threshold:
This value should remain at its default setting of 2346. If
inconsistent data ow is a problem, only a minor modication
should be made.
Fragmentation
Threshold:
The fragmentation threshold, which is specified in bytes,
determines whether packets will be fragmented. Packets
exceeding the 2346 byte setting will be fragmented before
transmission. 2346 is the default setting..
DTIM Interval:
DTIM range can be set from 1 to 255. A delivery trac indication
message is a kind of trac indication message (TIM) which
informs the clients of the presence of buered multicast/
broadcast data on the access point.
Preamble Type:
Use the drop-down menu to specify whether the router should
use the Short Preamble or Long Preamble type. The preamble
type denes the length of the CRC (Cyclic Redundancy Check)
block for communication between the router and roaming
wireless adapters
SSID:
Enter an SSID for the wireless network.
Visibility Status:
Enable the wireless network to be Visible or Invisible to wireless
clients. If Invisible, the SSID of the DSL-2750B will not be seen
by site survey utilities, so wireless clients will have to manually
enter the SSID of your wireless network in order to connect to it.
User Isolation:
Choose to enable or disable wireless user isolation.
Disable WMM
Advertise:
Enable or Disable WiFi MultiMedia QoS.
Max Clients:
Use this option to specify the maximum number of clients.
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Enable Guest
Virtual Access Point
1/2/3:
Enable or disable a guest network.
Guest SSID:
Specify a name for each guest network.
Visibility Status:
Enable the guest wireless network to be Visible or Invisible
to wireless clients.
User Isolation:
Choose to enable or disable guest wireless user isolation.
Disable WMM
Advertise:
Enable or Disable WiFi MultiMedia QoS on the guest network.
Max Clients:
Use this option to specify the maximum number of clients on
the guest network.
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MAC Filtering
The Access Control setup tab enables you to congure lters to
control which wireless clients can access your network, and which
network resources they can access.
Select Enable to enable the Wireless Access Control Mode. In this
mode, only listed wireless devices will be allowed to connect to the
wireless network. Click Submit to save your settings.
Click the Add button to add an item to the lter list.
Enter the MAC address of a device you wish to allow access for to
the WLAN.
Click the Apply button when you are done. This will add the device’s
MAC address to the lter list.
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Security Settings
Wireless Security
Mode:
Select a wireless security encryption option. You can also
choose to not use one by selecting None, but this is not
recommended. For information on wireless security, please
refer to WPS Settings on page 33.
WPA Mode:
Select either Personal or Enterprise.
Encryption
Mode:
Select TKIP + AES.
Group Key
Update Interval:
Enter the time in seconds that the group key will be
automatically updated.
Pre-Shared Key:
Enter a string of 8 characters to set a password for your wireless
network.
RADIUS server IP
Address:
For Enterprise mode, enter the IP address of your network’s
RADIUS server here.
RADIUS server
Port:
Enter the port of your network’s RADIUS server here.
RADIUS server
Shared Secret:
Enter the password of your network’s RADIUS server here.
In this section, you can congure the wireless security settings for
the router.
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WPS Settings
Select the SSID of the virtual network you wish to congure.
Enable WPS:
Check the box to enable devices to connect to the router using
WPS.
Device PIN:
Displays the current PIN (Personal Identication Number) for
the router’s WPS connection. Wireless clients connecting to the
router using the PIN method should enter this PIN in order to
connect. Click New PIN to generate a new PIN.
Generate PIN
Status:
Click PIN to enter a PIN for the new device that you wish to
connect.
Push Button:
Click PBC to activate the WPS-PBC (push-button) method. You
will then have 120 seconds to press the WPS button on the new
device that you wish to connect.
Input Station
PIN:
Enter the PIN for the station that you wish to connect to. Click
PIN to connect to the device.
WPS Session
Status:
Displays the current status of WPS.
This section allows you to congure how the DSL-2750B uses Wi-Fi
Protected Setup (WPS) to create a secure wireless connection.
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ALG
An application-level gateway (ALG) is a security component that
augments a firewall or NAT employed in a network. It allows
customized NAT lters to support address and port translation for
specied application layer protocols.
TFTP Pass
Through:
Check to enable or disable TFTP pass through functionality.
FTP Pass
Through:
Check to enable or disable FTP pass through functionality.
PPTP Pass
Through:
Check to enable or disable PPTP pass through functionality.
RTSP Pass
Through:
Check to enable or disable RTSP pass through functionality.
L2TP Pass
Through:
Check to enable or disable L2TP pass through functionality.
H323 Pass
Through:
Check to enable or disable H323 pass through functionality.
SIP Pass
Through:
Check to enable or disable SIP pass through functionality.
IPSEC Pass
Through:
Check to enable or disable IPSEC pass through functionality.
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FTP
On this page you can congure the FTP server.
FTP Server:
Enable FTP
Server:
Check the box to enable the FTP server.
Enable FTP
Server for
WAN:
Check the box to enable FTP connections over WAN.
Enable
Anonymous
Access:
Check the box to allow users to connect anonymously.
FTP Server
Port:
Enter the port number to be used for FTP. The default is 21.
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Port Forwarding
Port forwarding is a method to direct incoming trac to a particular
server on the LAN. Up to 16 port forwarding entries are supported.
Click Add, Edit, or Delete to reveal the Port forward setup options.
WAN
Connection:
Specify the WAN connection to use.
Server
Name:
Enter a name for the server or service.
Schedule: Select whether the port will always or never be forwarded.
Server IP
Address:
Enter the internal IP address for the trac to be forwarded to.
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Port Trigger
Port triggering allows ports to be opened for remote access if
triggered by activity by a local computer on specied ports.
Click Add, Edit, or Delete to reveal the Port Trigger setup options.
Enable Port
Trigger:
Check this to enable the port trigger feature.
Service
Name:
Enter a name for the server or service.
Rule Status: Select whether to Enable or Disable this rule.
Trigger Port
Start/End:
Enter the starting and ending port to monitor to trigger this
rule.
Trigger
Protocol:
Select the protocol to monitor for to trigger this rule.
Open Port
Start/End:
Enter the starting and ending port to open when the rule is
triggered.
Open
Protocol:
Enter the protocol to allow through the opened ports.
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DMZ
A DMZ or Demilitarized Zone is as a physical or logical subnetwork
that contains and exposes external-facing services to a larger and
untrusted network, usually the Internet.
WAN
Connection:
Specify the WAN connection to use.
Enable DMZ: Check to enable or disable DMZ functionality.
DMZ Host IP
Address:
Enter an IP address to be included in the DMZ.
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SAMBA
Samba allows le and print sharing between computers. It is an
implementation of dozens of services and a dozen protocols.
Enable SAMBA: Check to enable or disable SAMBA functionality.
Workgroup: Enter the name of the workgroup to be mapped.
Netbios Name: Enter a name for Netbios mapping.
New SMB
password:
Enter a password for the root user.
Retype new
SMB password:
Re-enter the password for the root user.
Enable USB
Storage:
Check to enable or disable SAMBA functionality for USB devices.
Enable
Anonymous
Access:
Check to enable or disable SAMBA functionality for USB
anonymous users.
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Section 3 - Conguration
3G WAN Conguration
This section enables you to congure a 3G Internet connection.
Click the Add button to reveal the setup options.
Enable 3G
Service:
Check to enable or disable 3G functionality.
Enable NDIS: Check to enable Network Driver Inter face Specication (NDIS).
Enable DHCP: Check to let the router act as the DHCP server for the 3G WAN
connection.
Account/
Password:
Enter your account and password for your 3G WAN connection.
Dial Number: Enter the number to be dialed.
Net Type: Select your 3G network access type.
APN: Enter the Access Point Network (APN) if there is one.
On Demand: Check to connect to 3G network automatically or manually.
Inactivity
Timeout:
Enter a period to disconnect an inactive connection. Only
available if On Demand has been checked.
Backup delay
time:
The response time allowed for 3G connection before a dial-up
is initiated.
Recovery delay
time:
Specify a period to re-dial.
Initialization
Delay time:
Specify a period for the 3G connection to initialize.
Mode Switch
Delay time:
Specify a period to allow for a mode switch.
Backup
Mechanism:
Select a WAN connection to use if 3G fails.
Checking IP
address:
Specify an IP Address to test the 3G connection.
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Timeout: Specify a period of inactivity after which an established 3G
session will be ended. Set to zero or choose Auto in Reconnect
Mode to disable this feature.
Period time: Specify a period for DSL or Ethernet uplink to be disconnected.
Fail Tolerance: Specify the number of failures before using the backup
connection.
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Parental Control
This section enables you to restrict access to the internet.
The Website Filter enables you to quickly create a list of websites
to limit access to, or to block access to.
The HTTP Content Filter enables you to control access to HTTP
content on the Internet.
The MAC Filter enables you to lter access by device MAC addresses.
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Section 3 - Conguration
Website Filter
Access
Control
Mode:
Select to Deny access to all listed websites, or to Allow access
to only the listed websites.
Website
Filter List:
Click Add/Edit/Delete to manage your website list.
URL: Enter a website address.
Days/All
Day/Start -
End Time:
Use these options to schedule when you want the website lter
to be active for the specied URL.
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HTTP Content Filter
Access
Control
Mode:
Select to Deny access to all listed websites, or to Allow access
to only the listed websites.
HTTP
Content
Filter List:
Click Add/Edit/Delete to manage your website list.
Keywords: Enter keywords you want to lter via rules.
Days/All
Day/Start -
End Time:
Use these options to schedule when you want the HTTP lter
to be active for the specied keyword.
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MAC Filter
MAC Filtering
Global Policy:
Choose BLACK_LIST or WHITE_LIST then click Add/Edit/
Delete to reveal scheduling options.
User Name: Enter a user name.
Current PC’s
MAC Address:
Select to use the MAC address of your current client.
Other MAC
Address:
Enter the user’s alternate MAC address.
Days/All Day/
Start - End
Time:
Enter or Check the options to create the required access control
schedule.
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Filtering Options
This section enables you to apply advanced IPv4 or IPv6 ltering
options .
Click IPv4 Filtering to reveal IPv4 conguration options.
Click IPv6 Filtering to reveal IPv6 conguration options.
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IPv4 Filtering
Enable IP Filter: Check to enable or disable the IPv4 Filter.
Security Level: Select the security level.
Low will set the lter to Black in both directions.
Middle will set the lter to White in the WAN -> LAN direction
and White in the LAN -> WAN direction.
High will set the lter to White in both directions.
Filter Model: Select the lter model to adjust and click Add a Rule to reveal
further options.
Connection: Select the connection to be ltered.
Enable: Check to enable or disable the IPv4 model.
Protocol: Select the appropriate protocol for the connection.
Source IP: Enter the sending IP address to be ltered.
Source Mask: Enter the sending mask to be ltered.
Source Port: Enter the sending port to be ltered.
Destination IP: Enter the destination IP address to be ltered.
Destination
Mask:
Enter the destination mask to be ltered.
Destination
Port:
Enter the destination port to be ltered.
Description: Enter a name for the lter rule.
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IPv6 Filtering
Enable IP
Filter:
Check to enable or disable the IPv6 Filter.
Security
Level:
Select the security level.
Low will set the lter to Black in both directions.
Middle will set the lter to White in the WAN -> LAN direction
and White in the LAN -> WAN direction.
High will set the lter to White in both directions.
Filter
Model:
Select the lter model to adjust and click Add a Rule to reveal
further options.
Enable: Check to enable or disable the IPv4 model.
Connection: Select the connection to be ltered.
Protocol: Select the appropriate protocol for the connection.
Source IP: Enter the sending IP address to be ltered.
Source
Mask:
Enter the sending mask to be ltered.
Source Port: Enter the sending port to be ltered.
Destination
IP:
Enter the destination IP address to be ltered.
Destination
Mask:
Enter the destination mask to be ltered.
Destination
Port:
Enter the destination port to be ltered.
Description: Enter a name for the lter rule.
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QoS
Quality of Service (QoS) is a feature that lets you ensure throughput
for specific services or devices. QoS can improve your online
experience by ensuring that specic trac is prioritized over other
network trac, such as VoIP, FTP, or Web.
QoS: Check to enable or disable QoS.
Direction: Select Upstream or Downstream.
Queue
Enable:
Check to enable or disable queueing.
Bandwidth: Enter a maximum limit for upstream trac.
Discipline: Select the QoS discipline type.
WRR
Weight:
If WRR discipline is selected, dene it here.
Enable
DSCP
ReMark:
Check to enable or disable DSCP ReMark.
Enable
802.1p
ReMark:
Check to enable or disable 802.1p ReMark.
Click Add a Rule to reveal further QoS conguration options.
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Add QoS Classication Rules
Classify Type: Select Upstream Flow or Downstream Flow classication.
Actions: Select to enable or disable this rule.
Application: Select the pre-dened application type or choose Not Match.
Physical Ports: Choose the WAN Interface.
Destination IP
address:
Enter the destination IP address for the rule. If data packets
include the IP address, the data packets are placed into the
group.
Destination
Subnet Mask:
Enter the destination subnet mask for the rule.
Destination
Port Range:
Enter the destination port range. (eg. UDP/TCP port range)
Source MAC
address:
Enter the source MAC address. If data packets include the MAC
address, the data packets are placed into the group.
Source IP
address:
Enter the source IP address. If data packets include the IP
address, the data packets are placed into the group.
Source Subnet
Mask:
Enter the source subnet mask.
Source Port
Range:
Enter the source port range. (eg. UDP/TCP port range)
Protocol: Select the pre-dened protocol type or choose Not Match.
Vlan ID: Enter the VID (VLAN ID) is the identication of the VLAN, which
is used by the standard 802.1Q. It has 12 bits and allows the
identication of 4096 (2^12) VLANs. The maximum possible
VLAN congurations are 4,094.
DSCP: Select a matching DSCP type.
Queue #: Select the queue priority number.
DSCP Remark: The DSCP range can be between 0 to 63.
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802.1p Remark: Select this option to Activate/Deactivated the 802.1p. IEEE
802.1p establishes eight levels of priority (0 ~ 7). Although
network managers must determine actual mappings, IEEE has
made broad recommendations.
Seven is the highest priority which is usually assigned to
network-critical trac such as Routing Information Protocol
(RIP) and Open Shortest Path First (OSPF) table updates. Five
and six are often for delay-sensitive applications such as
interactive video and voice. Data classes four through one
range from controlled-load applications such as streaming
multimedia and business-critical trac - carrying SAP data,
for instance - down to “loss eligible” trac. Zero is used as a
best-eort default priority, invoked automatically when no
other value has been set.
Queue #: Select Low, Medium, High or Highest.
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Anti-Attack Settings
This section enables you to automatically congure your router to
detect and protect against several known attack types.
A denial-of-service (DoS) attack is characterized by an explicit
attempt by attackers to prevent legitimate users of a service from
using that service.
Port scan protection is designed to block attempts to discover
vulnerable ports or services that might be exploited in an attack
from the WAN.
Check Enable Attack Prevent to enable the rewall conguration
options checked below it and click Apply.
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Share Protection
IPID: Check to enable IPID conguration.
TTL: Check to enable TTL for IPID settings.
TTL Value: Enter a TTL value.
Connlimit: Check to enable concurrent connections limit.
TCP
Connlimit
Value:
Enter a value for the TCP concurrent connections limit.
UDP
Connlimit
Value:
Enter a value for the UDP concurrent connections limit.
The identication eld is used to distinguish the fragments of one
datagram from those of another. The originating protocol module
of an internet datagram sets the identication eld to a value that
must be unique for that source-destination pair and protocol for the
time the datagram will be active in the internet system.
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DNS
Domain name system (DNS) is an Internet service that translates
domain names into IP addresses. Because domain names are
alphabetic, they are easier to remember. The Internet, however, is
actually based on IP addresses. Each time you use a domain name,
a DNS service must translate the name into the corresponding IP
address. For example, the domain name www.example.com might
be translated to 198.105.232.4.
The DNS system is, in fact, its own network. If one DNS server does
not know how to translate a particular domain name, it asks another
one, and so on, until the correct IP address is returned.
WAN
Connection:
Select WAN connection you wish to congure.
IPv4 Static DNS: Check to enable static DNS for this DNS server.
Preferred DNS
Server:
Enter the provided DNS server IP address.
Alternate DNS
Server:
Enter the secondary DNS server IP address.
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Dynamic DNS
The DDNS (Dynamic Domain Name System) feature allows you to
host a server (e.g. a Web, FTP, or game server) using a domain name
that you have purchased (www.whateveryournameis.com) with your
dynamically assigned IP address. Most broadband Internet Service
Providers assign dynamic (changing) IP addresses. Using a DDNS
service provider, your friends can enter your domain name to connect
to your server no matter what your IP address is.
Click Add or Edit to reveal Dynamic DNS conguration options.
DDNS provider: Select one of the Dynamic DNS organizations from the menu.
Hostname: Enter the hostname you registered with the Dynamic DNS
provider.
Interface: Select the appropriate interface.
Username: Enter the username for your Dynamic DNS account.
Password: Enter the password for your Dynamic DNS account.
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Network Tools
The Network Tools section provides several features which enable a
ne degree of network management control.
Click the Port Mapping, IGMP Proxy, IGMP Snooping, MLD
Configuration, UPnP, or DSL button to reveal the associated
conguration options.
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Port Mapping
This section enables you to bind the WAN interface and the LAN
interface to the same group. This allows remote computers to
connect to a specic computer or service within a private local-area
network (LAN).
Click Add to reveal the Port Mapping conguration options.
Group Name: Enter a group name.
Grouped
Interfaces:
Select from the listed interfaces from the Available Interface
then click the <- arrow button to add them to the Grouped
Interface list. This creates the required mapping of the ports.
The group name must be unique.
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IGMP Proxy
Creating an IGMP proxy enables the system to issue IGMP host
messages on behalf of hosts that the system has discovered through
standard IGMP interfaces. This allows the system to act as a proxy for
its hosts after being enabled.
WAN Interface: Select the WAN interface you wish to congure.
IGMP Version: Select either IGMP V1, IGMP V2, or IGMP V3 from the list.
Enable IGMP
Proxy:
Check this box to enable IGMP proxy.
LAN
Connection:
Select the LAN connection to use.
Enable
FastLeaving:
Check this box to enable FastLeaving.
General Query/
Response
Interval:
Enter the query interval and query response interval in box.
Group Query/
Response
Interval:
Enter the group query interval and the group query response
interval in the box.
Group Query
Count:
Enter the group query count in the box.
Last Member
Query Interval:
Enter the last member query interval in the box.
Last Member
Query Count:
Enter the last member query count in the box.
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IGMP Snooping
Enabling this option allows the router to listen for Internet Group
Management Protocol (IGMP) trac, which can help to detect clients
which require multicast streams.
Enable IGMP: Check this box to enable IGMP.
Last Member
Query Interval:
Enter the last member query interval here.
Host Timeout: Enter the host timeout here.
Mrouter
Timeout:
Enter the Mrouter timeout here.
Leave Timeout: Enter the leave timeout here.
Max Groups: Enter the max number of groups here.
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MLD Conguration
This section allows you to congure MLD settings for your router.
Multicast Listener Discovery(MLD) snooping allows the switch to
examine MLD packets and make forwarding decisions based on
their content.
Enable Mld
Proxy:
Check this box to enable MLD proxy.
WAN
Connection:
Select a WAN connection from the drop-down list to allow MLD
proxy on.
Enable
FastLeaving:
Check this box to enable Fastleaving.
Query Interval:
Enter a time in seconds for the query interval.
Query
Response
Interval:
Enter a time in 1/10s for the query response interval.
Last Member
Query Interval:
Enter a time in 1/10s for the last member query interval.
Enable Mld
Snooping:
Check this box to enable the MLD Snooping function.
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Section 3 - Conguration
UPnP
This page enables you to enable the UPnP feature.
UPnP (Universal Plug and Play) is a distributed, open networking
standard that uses TCP/IP for simple peer-to-peer network
connectivity between devices. A UPnP device can dynamically join
a network, obtain an IP address, convey its capabilities and learn
about other devices on the network. In turn, a device can leave a
network smoothly and automatically when it is no longer in use.
UPnP broadcasts are only allowed on the LAN.
UPnP is used for popular audio visual software. It allows automatic
discovery of your device in the network. If you are concerned about
UPnP security, you can disable it. Block ICMP ping should be enabled
so that the device does not respond to malicious Internet requests.
Enable UPnP: Check to enable or disable UPnP.
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DSL
This page lets you set the xDSL mode and type. It is recommended
that you use the default settings.
xDSL Mode:
Select between Auto Sync-Up, ADSL2+, ADSL2, G.DMT, T1.413,
G.lite modes.
xDSL Type:
Select the correct Annex type for your DSL connection.
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Routing
The Routing sections provides an advanced method of customizing
specic routes of data through your network.
Click the Static Route, IPv6 Static Route, Policy Route, RIP Settings,
or RIPng Settings button, to reveal the associated conguration
options.
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Static Route
Destination
Network
Address:
Enter the IP address of the destination router.
Subnet Mask: Enter the subnet mask of the destination IP address.
Use Gateway IP
Address:
Enter the IP address of the gateway router to be used.
Use Interface: Select the interface to be used from the drop-down menu.
This section allows you to set up static routes for your network.
Click the Add button to reveal the associated conguration options.
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IPv6 Static Route
Enable: Check this box to enable the route.
Destination
Network
Address:
Enter the IPv6 address of the destination router.
Use Gateway IP
Address:
Enter the IPv6 address of the gateway router to be used.
Use Interface: Select the interface to be used from the drop-down menu.
This section allows you to set up IPv6 static routes for your network.
Click the Add button to reveal the associated conguration options.
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Policy Route
The Policy Route section provides a method to bind a WAN and at
least one LAN connection together.
Click the Add button to reveal the associated conguration options.
WAN
Connection:
Select the WAN connection to be used for binding.
LAN
Connection:
Select at least one LAN connection to be bound.
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RIP
Use this page to select the interfaces on your device that you want
to use RIP for, and the version of the protocol to be used.
Dynamic
Route:
Select from OFF, RIPv1, RIPv2.
Direction: Select either Active or Passive.
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RIPng
Use this page to enable or disable RIPng for the available interfaces.
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Schedules
Name: Enter a name for the new schedule rule.
Day(s): Choose the desired day(s), either All Week or Select Day(s). If
the latter is selected, please use the checkboxes directly below
to specify the individual days.
All Day - 24
hrs:
Tick this check box if the new schedule rule applies to the full
24-hour period.
Start Time: If the new schedule rule does not apply to the full 24-hour
period, untick the previous checkbox, then enter a specic
beginning time.
End Time: Enter an ending time.
The router allows the user the ability to manage schedule rules
for various rewall features on this page. Once you have nished
conguring the new schedule rule, click the Apply button.
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NAT
This screen lets you set up NAT for your router to link external IP
address with internal IP addresses.
Entry Name: Enter a name for the address to be mapped.
Internal IP
Type:
Select either Single IP or IP Range.
Internal IP
Address:
Enter the IP or the IP Range.
External IP
Type:
Select either Single IP or IP Range.
External IP
Address:
Enter the IP or the IP Range.
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System
Management
The System Management sections provides a number of options
to manage the DSL-2750B. This section allows you to manage the
router’s conguration settings, reboot the router, and restore the
router to the factory default settings. Restoring the unit to the factory
default settings will erase all settings, including any rules that you’ve
created.
Reboot: Click Reboot to immediately restart the router.
Backup
Setting:
Use this option to save the current router conguration settings
to a le on the hard disk of the computer you are using. First, Click
Backup Setting. A le dialog will appear, allowing you to select
a location and le name for the settings.
Update
Setting:
Use this option to load previously saved router conguration
settings. First, use the Browse option to nd a previously saved
le of conguration settings. Then, click the Update button to
transfer those settings to the router.
Restore Default
Setting:
Click Restore Default Setting to restore all conguration
settings back to the settings that were in eect at the time
the router was shipped from the factory. Any settings that
have not been saved will be lost, including any rules that you
have created.
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Firmware Update
Current
Firmware
Version:
This elds displays information about the current rmware.
Current
Firmware
Date:
This elds displays the date of the current rmware.
Select File: Click Browse to locate the rmware le required.
Clear
Cong:
Check Clear Cong to reset all current congurations before
the rmware is installed.
Update
Firmware:
Click Update Firmware to upload and install the selected
rmware.
You can upgrade the rmware of the access point here. Make sure the
rmware you want to use is on the local hard drive of the computer.
Click on Browse to locate the rmware le to be used for the update.
Please check the D-Link support website for rmware updates at
http://support.dlink.com. You can download rmware upgrades
to your hard drive from this site.
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Access Controls
Here, you can manage access to your router.
Click the Account Password, LACL, RACL, or IP Address buttons to
reveal the associated conguration options.
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Account Password
Username: Select the username that you want to modify.
New
Username:
If you are adding a new user account, enter the username in
this eld.
Current
Password:
Enter the current password (existing users only).
New Password: Enter the new password.
Conrm
Password:
Re-enter the new password.
Web Idle Time
Out:
Set a period of time to automatically log the user out if the
session is inactive for the specied amount of time.
The Account Password section enables you to manage users’
passwords.
You should change the default admin password to secure your
network.
Ensure that you remember the new password or write it down and
keep it in a safe and separate location for future reference. If you
forget the password, you will need to reset the device to the factory
default settings and all conguration settings of the device will be
lost.
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Section 3 - Conguration
Local Access Control
Enable Local
Access:
Check to enable or disable remote access to the following
services.
Choose a
Connection:
Select a connection interface from the available options in the
drop-down menu.
The Local Access Control section enables you to specify which
services can be accessed by a remote host.
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Section 3 - Conguration
Remote Access Control
Enable Local
Access:
Check to enable local access control of services.
Choose a
Connection:
Select a connection from the drop-down menu on which to
enable remote access.
The Remote Access connection section enables you to allow or
disallow WAN management access.
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IP Address
IP Address: Enter an IP Address to be added to the ACL.
On this page, you can configure the IP address for the access
control list (ACL). If ACL is enabled, only devices with the specied
IP addresses can access the device.
Check Enable Access Control Mode to enable the ACL, then click
Add, to reveal further options for adding an IP address to the ACL.
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Section 3 - Conguration
Diagnostics
The Diagnostics section provides various method of testing your
router and network.
Click the DSL Test, Traceroute, or Ping buttons, to reveal the
associated conguration options.
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Section 3 - Conguration
DSL Test
WAN
Connection:
Select the connection from the drop-down menu that you
would like to test. Then Click Run Diagnostic Tests to run the
test.
The DSL section provides a way for you to test your DSL connection.
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Traceroute
Protocol: Select IPv4 or IPv6 to run the test on.
Host: Enter a host to run a traceroute against.
Max TTL: Enter a maximum value for TTL.
Wait times: Enter a maximum value for wait times between hops.
Result: The results of the traceroute test will be displayed here.
The Traceroute section enables you to run a traceroute test. Congure
your settings and click Traceroute to run the test.
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Section 3 - Conguration
Ping
Protocol: Select IPv4 or IPv6 to use for the ping test.
Host: Enter a host to ping.
Number of
retries:
Enter a value for the number of times you would like to ping
the host.
Timeout: Enter a timeout value before a failure is declared.
Packet Size: Enter a value for the ping packet size.
WAN
Connection:
Select a WAN connection from the drop-down menu to use
for the ping test.
Result: The results of the ping test will be displayed here.
The Ping section enables you to run a ping test.
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Section 3 - Conguration
System Log
Enable Log: Check to enable or disable logging
Mode: Select to record the log to Local, Remote, or Both.
Server IP
Address:
Enter an IP address for the remote logging server.
Server UDP
Port:
Enter the UDP port of the remote server.
The DSL-2750B keeps a running log of events and activities occurring
on the router. You may send these logs to a SysLog server on your
network. You can view the current log by clicking the View System
Log button.
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Device Info
Status
This page displays the current information for the DSL-2750B, such
as LAN and wireless LAN information and statistics.
System Info: This section displays a summary of the system settings
Internet
Info:
This section displays of the internet connection settings.
Wireless
Info:
This section displays a summary of the wireless network
settings.
Storage
Device Info:
This section displays a summary of the storage device and its
settings.
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Wireless Clients
The wireless section allows you to view the wireless clients that are
connected to your wireless networks.
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DHCP Clients
The DHCP Clients section allows you to view the clients that are
connected to your router using DCHP.
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Logs
The DSL-2750B keeps a running log of events and network activities
passing through the router. If the device is rebooted, the logs will be
cleared automatically.
The router automatically logs (records) events in it’s internal memory.
If there isn’t enough internal memory for all events, logs of older
events are deleted while later events are retained. The Logs option
allows you to view the router logs. You can dene what types of
events you want to view and the level of the events to view.
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Statistics
The DSL-2750B keeps statistics of the trac that passes through it.
You can view the amount of packets that pass through the LAN and
wireless portions of the network. The trac counter will reset if the
router point is rebooted.
Local Network
& Wireless Info:
This section displays a statistical summary of the LAN and
wireless interfaces.
Internet: This section displays a statistical summary of the internet
connection.
ADSL: This sec tion displays a statistical summary of the ADSL interface.
Click Clear to refresh the Data Counter statistics.
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Route Info
The Route Info page displays a summary of the current route
conguration between the router and the WAN.
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Help
This page provides help and explanations for dierent sections of
the rmware.
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Section 4 - Connecting To Your Wireless Network
Connect a Wireless Client to your Router
WPS Button
Step 2 - Within 2 minutes, press the WPS button on your wireless client (or launch the software utility and start the WPS
process).
Step 1 - Press the WPS button on the back of DSL-2750B for about 1 second. The Internet LED on the front will start to blink.
Step 3 - Allow up to 1 minute to congure. Once the Internet light stops blinking, you will be connected and your wireless
connection will be secure with WPA2.
WPS Button
The easiest and most secure way to connect your wireless devices to the router is WPS (Wi-Fi Protected Setup). Most wireless
devices such as wireless adapters, media players, Blu-ray DVD players, wireless printers and cameras will have a WPS button
(or a software utility with WPS) that you can press to connect to the DSL-2750B router. Please refer to your user manual for the
wireless device you want to connect to make sure you understand how to enable WPS. Once you know, follow the steps below:
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Section 4 - Connecting To Your Wireless Network
Windows® 8
WPA/WPA2
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your
wireless adapter. If you are joining an existing network, you will need to know the security key (Wi-Fi password) being used.
To join an existing network, locate the wireless network icon in the taskbar, next
to the time display.
Wireless Icon
Clicking on this icon will display a list of wireless networks which are within
connecting proximity of your computer. Select the desired network by clicking
on the network name.
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Section 4 - Connecting To Your Wireless Network
You will then be prompted to enter the network security key (Wi-Fi password)
for the wireless network. Enter the password into the box and click Next.
If you wish to use Wi-Fi Protected Setup (WPS) to connect to the router, you can
also press the WPS button on your router at the point to enable the WPS function.
When you have established a successful connection a wireless network, the
word Connected will appear next to the name of the network to which you are
connected.
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Section 4 - Connecting To Your Wireless Network
Windows® 7
It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before conguring your
wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used.
1. Click on the wireless icon in your system tray (lower-right corner).
2. The utility will display any available wireless networks in your area.
Wireless Icon
WPA/WPA2
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Section 4 - Connecting To Your Wireless Network
3. Highlight the wireless connection with Wi-Fi name (SSID) you would
like to connect to and click the Connect button.
If you get a good signal but cannot access the Internet, check your
TCP/IP settings for your wireless adapter. Refer to the Networking
Basics section in this manual for more information.
4. The following window appears while your computer tries to connect
to the router.
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Section 4 - Connecting To Your Wireless Network
5. Enter the same security key or passphrase (Wi-Fi password) that is
on your router and click Connect. You can also connect by pushing
the WPS button on the router.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the security settings are correct. The
key or passphrase must be exactly the same as on the wireless router.
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Section 4 - Connecting To Your Wireless Network
Windows Vista®
Windows Vista® users may use the built-in wireless utility. If you are using another company’s utility, please refer to the user
manual of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option
similar to the Windows Vista® utility as seen below.
Right-click on the wireless computer icon in your system tray (lower-right
corner next to the time). Select Connect to a network.
If you receive the Wireless Networks Detected bubble, click on the
center of the bubble to access the utility.
or
The utility will display any available wireless networks in your area. Click
on a network (displayed using the SSID) and click the Connect button.
If you get a good signal but cannot access the Internet, check you TCP/
IP settings for your wireless adapter. Refer to the Networking Basics
section in this manual for more information.
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