Wireless N300 ADSL2+ Modem Router


  • Product Status: Phased Out
  • All-in-one router with integrated ADSL2+ modem
  • Wireless N300 (300 Mbps on 2.4 GHz)
  • 4 x Fast Ethernet LAN
  • 1 x USB 2.0 port for media sharing

Download the datasheet.

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D-Link’s Wireless N300 ADSL2+ Modem Router (DSL-2751) is the ideal Internet gateway for users that get their Internet connection through the phone line. This router connects directly to your telephone line without the need of an ADSL modem, and provides the fastest download streams. With Wireless N speeds of up to 300 Mbps and SharePort™ Technology, this router is suitable for users that want the most out of their home network.

High-Speed Wireless Networking

Create a high-speed wireless network for your home using this ADSL2+ Router. Connect the device to a broadband modem and wirelessly share your high-speed Internet connection at speeds of up to 300 Mbps. Enjoy surfing the web, checking email, and chatting with family and friends online. The router uses Wireless N technology, which offers increased speed and range over earlier standards. It uses Intelligent Antenna technology to transmit multiple streams of data by bouncing multiple wireless signals off of walls enabling you to receive wireless signals in the farthest corners of your home. The Wireless N ADSL2+ Modem Router also includes four Fast Ethernet ports that give you the flexibility to connect wired devices like Network Attached Storage (NAS) Enclosures to the network.

Share and Stream Files with Shareport™ Technology

Connect a USB storage device to the Wireless N ADSL2+ Modem Router to create a shared storage space, making it easy to share music, movies and documents between computers and devices connected to your network. Plug in a USB hard drive and access your library of videos and music on your laptop. You can even customise your shared storage space by creating separate accounts to control access to the USB drive, so you can share your music with everyone but keep your personal files private.

Smart traffic/bandwidth prioritisation

With some routers, all wired and wireless traffic, including Internet call such as Skype™, video streaming, online gaming, and web browsing are mixed together into a single data stream. By handling data this way, applications such as streaming video may stutter or have an unstable connection. With the D-Link Smart Quality of Service technology, wired and wireless traffic is analysed and separated into multiple data streams. Different applications like voice, video, and data will be automatically detected and prioritised so that you can stream without buffering and game without lag.

IPv6 ready

This router is ready for the future of the Internet with support for the upcoming move from IPv4 to IPv6. It carries the IPv6 Ready Gold Logo, meaning that it not only supports the IPv6 protocol, but is also compatible with IPv6 equipment from other manufacturers. Using a dual-stack architecture, this router can handle routing for both IPv4 and IPv6 networks at the same time, so you can be assured that your router is forward and backward compatible.

D-Link Green™

This router is part of D-Link GreenTM, D-Link’s programme for providing eco-friendly alternatives without compromising performance. This Modem Router supports WLAN Scheduler, which switches off the wireless network when not needed, for example at nights or during working hours. Also the power consumption is further reduced with its Energy StarTM power supply.

Device Interfaces

  • 1x RJ-11 ADSL port
  • 4x 10/100BASE-TX MDI/MDIX ports
  • 802.11n WLAN
  • 1x USB 2.0 port


  • 802.11b/g/n standards
  • Up to 300 Mbps (802.11n)
  • Frequency range: 2.4 GHz to 2.484 GHz
  • 2x Non-detachable MIMO antennas
  • 64/128-bit WEP data encryption
  • WPA /WPA 2 (personal/enterprise) security
  • 802.1x RADIUS
  • WPS (Wi-Fi Protected Setup)
  • MAC address-based access control


ADSL standards

  • ADSL standards: Multi-mode, ANSI T1.413 Issue 2, ITU G.992.1 (G.dmt) Annex B, ITU G.992.2 (G.lite) Annex B, ITU G.994.1 (G.hs)
  • ADSL2 standards: ITU G.992.3 (G.dmt.bis) Annex B/J, ITU G.992.4 (G.lite.bis) Annex B
  • ADSL2+ standards: ITU G.992.5 Annex B/L

ADSL data rates

  • G.dmt: 8 Mbps downstream, 832 Kbps upstream
  • G.lite: 1.5 Mbps downstream, 512 Kbps upstream
  • ADSL2: 12 Mbps downstream, 1 Mbps upstream
  • ADSL2+: 24 Mbps downstream, 1 Mbps upstream

ATM & PPP protocols

  • ATM Adaptation Layer Type 5 (AAL5)
  • Bridged or routed Ethernet encapsulation
  • VC and LLC based multiplexing
  • PPP over Ethernet (PPPoE)
  • PPP over ATM (RFC 2364)
  • ITU-T I.610 OAM F4/F5

Network protocols

  • WAN/LAN Switchable Port
  • NAT (maximum 4096 NAT sessions)
  • DHCP server/client/relay
  • Universal Plug and Play (UPnP) Compliant
  • Dynamic Domain Name System (DDNS)
  • Virtual Server

Firewall/Access Security

  • Built-in NAT firewall
  • Stateful Packet Inspection (SPI)
  • DoS attack prevention
  • Packet filtering (IP/ICMP/TCP/UDP)
  • Intrusion Detection System (IDS)
  • DMZ
  • Parental Control (URL blocking, scheduling)

Virtual Private Network (VPN)

  • Multiple PPTP/IPSec/L2TP pass-through

Device Configuration/Management

  • Installation Wizard
  • Web-based GUI for configuration, firmware upgrade
  • Code lock to prevent improper firmware upgrade
  • Telnet
  • Syslog monitoring

Quality of Service (QoS)

  • LAN to WAN traffic prioritization/classification
  • Traffic Shaping

USB Applications:

  • Samba server
  • Printer server

Power Input

  • 12 V / 1 A, external

Diagnostic LEDs

  • Power
  • LAN (1 to 4)
  • WLAN
  • DSL
  • Internet
  • WPS
  • USB

Dimensions (L x W x H)

  • 182.8 x 127.8 x 32 mm


  • 236 grams


  • Operating: 0 to 40 ˚C
  • Storage: -20 to 70 ˚C


  • 5% to 95% non-condensing


  • C-Tick
  • CE
  • FCC
  • IC
  • WHQL
  • Wi-Fi Certified
  • WPS


  • How do I reset my ADSL Router back to factory default settings? Read Answer
This product was phased out on: 4.6.2018.
Version Date Type File Size
- PDF 0.59mb Download
Datenblatt - PDF 1.11mb Download
Version Description Date Type File Size
DSL-2751 manual DSL-2751 manual - PDF 3.16mb Download
Version Description Date Type File Size
1.00 DSL-2751 quick install guide - PDF 0.51mb Download
This D-Link product includes software code developed by third parties, including software code subject to the GNU General Public License (“GPL”) or GNU Lesser General Public License (“LGPL”). As applicable, the terms of the GPL and LGPL, and information on obtaining access to the GPL code and LGPL code used in this product, are available to you at:
The GPL code and LGPL code used in this product is distributed WITHOUT ANY WARRANTY and is subject to the copyrights of one or more authors. For details, see the GPL code and the LGPL code for this product and the terms of the GPL and LGPL.
Version Description Date
DSL-2751 firmware 1.00 DSL-2751 firmware - Download
Version Description Date
DSL-2751 D-Link Click'n Connect software DSL-2751 D-Link Click'n Connect software - Download
DSL-2751 SharePort utility for PC DSL-2751 SharePort utility for PC - Download
DSL-2751 SharePort utility for MAC DSL-2751 SharePort utility for MAC - Download
Version Description Date
CE declaration CE declaration 17.10.2014. Download