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The D-Link DSR-250NUnified Services Router, high-performance networking solutions to address the growing needs of small and medium businesses. The integrated high-speed IEEE 802.11n wireless technology in the D-LinkDSR-250NUnified Services Router offers comparable performance to traditional wired networks, but with fewer limitations. Each router provides optimal network security via features such as Virtual Private Network (VPN) tunnels, IP Security (IPSec), Point-to-Point Tunnelling Protocol (PPTP), Layer 2 Tunnelling Protocol (L2TP), Generic Routing Encapsulation (GRE)2, and Secure Sockets Layer (SSL). These routers also allow you to empower your road warriors with clientless remote access anywhere and anytime using SSL VPN tunnels.

Superior Wireless Performance

The D-Link DSR-250NUnified Services Router include 802.11b/g/n, allowing for operation onthe 2.4 GHzwireless LAN radio band. Multiple In Multiple Out (MIMO) technology allows the DSR-150N to provide high data rates and a wide wireless coverage area with minimised dead spots.

Flexible Deployment Options

The DSR-250N supports Third Generation (3G) networks via an extendable USB 3G dongle1. This 3G network capability offers an additional data connection for critical or backup services. A 3G USB dongle can be configured as a third WAN port, performing Traffic Load Balancing and executing automatic failover whenever the primary WAN link gets lost.

Robust VPN Features

A fully featured virtual private network (VPN) provides your mobile workers and branch offices with a secure link to your network. The D-LinkDSR-250NUnified Services Routeris capable of simultaneously managing5 Secure Sockets Layer (SSL) VPN tunnels, as well as10 Generic Routing Encapsulation (GRE) tunnels2, empowering your mobile users by providing remote access to a central corporate database. Site-to-site VPN tunnels use IP Security (IPSec) Protocol, Point-to-Point Tunnelling Protocol (PPTP), or Layer 2 Tunnelling Protocol (L2TP) to facilitate branch office connectivity through encrypted virtual links.The DSR-250N simultaneously support up to 25 IPSec VPN tunnels, and 25 additional PPTP/L2TP tunnels.

Efficient Green Technology

D-Link Green Wi-Fi and D-Link Green Ethernet features save power and help cut energy usage costs. The D-Link Green WLAN Scheduler shuts down your wireless network automatically according to a schedule you define, allowing you to turn off your wireless network during off-peak hours, saving energy and keeping your network secure. The D-Link Green Ethernet feature can detect if a link is down on a port, and automatically puts that port into a sleep mode that drastically reduces the amount of power used. In addition, compliance with RoHS (Restriction of Hazardous Substances) and WEEE (Waste Electrical and Electronic Equipment) directives make D-Link Green-certified devices an environmentally responsible choice.

1The following 3G dongles are supported: DWM-152 A1/A2/A3, DWM-156 A1/A2/A3/A5*/A6*, DWM-157*, Huawei E1550, E173, and EC306.* The dongles marked with * will be supported through firmware upgrades.
2Available through future firmware upgrade.



High-Performance VPN






VPN Tunnels

Up to 65 tunnels


Enhanced Network Services


IEEE 802.1q VLAN

Multiple SSIDs

Port Monitoring/Bandwidth Control

srTCM, trTCM, &policing

Wireless Access and Security

IEEE 802.11 b/g/n (2.4 GHz)

IEEE 802.1x RADIUS Authentication with EAP-TLS, EAP-TLLS, EAP-PEAP


Technical Specifications


Ethernet Interface

1 x 10/100/1000 Mbps WAN Ports

8 x 10/100/1000 Mbps LAN Ports

Wireless Interface

802.11b/g/n (Single Band)

2 Detachable 2 dBi Omni-Directional Antennas

USB 2.0 Ports


Console Port



Firewall Throughput2

750 Mbps

VPN Throughput (3DES)3

50 Mpps

Concurrent Sessions


New Sessions (per second)


Firewall Policies


Internet Connection Type

Static/ Dynamic IP


Multiple PPPoE

Firewall System

Static Route

Dynamic DNS

Inter-VLAN Route


Web Content Filtering

Static URL


Intrusion Prevention System (IPS)

Signature Package Included in Firmware


DHCP Server/ Client

DHCP Relay


VLAN (Port-Based)

IP Multicast

IGMP Proxy


3G Redundancy


Multiple Service Set Identifier (SSID)

Service Set Identifier (SSID) to VLAN Mapping



Wireless Security

Wired Equivalent Privacy (WEP)

Wi-Fi Protect Setup (WPS)

Wi-Fi Protected Access – Personal (WPA-PSK)

Wi-Fi Protected Access – Enterprise (WPA-EAP)

Wi-Fi Protected Access version 2 – Personal (WPA-PSK)

Wi-Fi Protected Access version 2 – Enterprise (WPA-EAP)

Virtual Private Network (VPN)

VPN Tunnels


IPSec Tunnels


SSL VPN Tunnels


PPTP/L2TP Clients




Encryption Methods

DES, 3DES, AES, Twofish, Blowfish, CAST-128, NULL

SSL Encryption Methods

RC4-128, 3DES, AES

IPSec/PPTP/L2TP Server

IPSec NAT Traversal

Dead Peer Detection

IP Encapsulating Security Payload (ESP)

IP Authentication Header (AH)

VPN Tunnel Keep Alive

Hub and Spoke

Bandwidth Management

Maximum Bandwidth Control

Priority Bandwidth Control

Port-based QoS

3 Classes

System Management

Web-based User Interface


Command Line

SNMP v1, v2c, v3

Physical &Environment

Power Supply

External Power Supply Unit

DC 12 V/1.5 A

Max. Power Consumption

12.6 W

Dimensions (L x W x H)

140 x 203 x 35 mm (5.51 x 8.0 x 1.38 inches)

Operation Temperature

0 to 40 °C (32 to 104 °F)

Storage Temperature

-20 to 70 °C (-4 to 158 °F)

Operation Humidity

5% to 95% non-condensing


FCC Class B, CE Class B, C-Tick, IC


cUL, LVD (EN60950-1)

3rd Party Certification

Wi-Fi, ICSA-Certified Firewall, VPNC AES Interop, VPNC Basic Interop


250,000 hours

1Firewall throughput is measured using UDP traffic with a 1,518 bytes packet size, adhering to RFC2544.

2Actual performance may vary depending on network conditions and activated services.

3VPN throughput is measured using UDP traffic with the packet size 1420 bytes and encryption method 3DES plus SHA-1, adhering to PFC2544.

4Available through future firmware upgrade.

Specification Sheets / Installation guides / Associated files

Warranty: 1 Year Return to Base

Full manufacturers warranty details are available at the manufacturers (D-Link) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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