D-Link DSR-250V2 Gigabit VPN Router Instruction Manual

1. Acabatview

The D-Link DSR-250V2 Unified Services VPN Router is designed to provide a high-performance networking solution for small and medium-sized businesses. It features dual WAN Gigabit Ethernet ports for high availability of Internet connections, supporting load balancing across links to enhance performance and application availability. A secondary WAN port can also be configured as a DMZ for server isolation. The DSR-250V2 supports mobile broadband networks via an extendable USB modem (3G/4G/5G dongles), allowing for additional redundancy and traffic load balancing on mobile data connections.

2. Què hi ha a la caixa

The DSR-250V2 package includes the following items:

• D-Link DSR-250V2 Router
• Guia d'instal·lació ràpida (QIG)
• Peus de goma (4)
• Cable Ethernet
• Adaptador d'alimentació AC/DC

Image: The D-Link DSR-250V2 router with various cables connected to its ports, illustrating a typical setup.

3. Característiques del producte

• All-in-One VPN Solution: Extends corporate networks to remote locations with enhanced security, suitable for small businesses and hybrid teams.
• Enterprise-Grade Security & Encryption: Supports IPSec, PPTP, L2TP, OpenVPN, SSL, and strong encryption (DES, 3DES, AES) to protect sensitive data.
• TAA/NDAA Compliance: Manufactured in Taiwan, meeting government and industry standards for elevated data protection.
• Dual WAN Failover: Automatically switches to a backup internet source to minimize disruptions and optimizes bandwidth with load balancing.
• Gestió simplificada: Característiques web-based and SNMP tools for clear visibility and control, simplifying deployment and troubleshooting.
• Router-Based or Client-Based VPN Options: Flexible deployment as a dedicated hardware VPN for always-on access or client-based VPN for traveling users.
• Feature-Rich Hardware & Performance: Equipped with 1x1Gbps WAN, 3x1Gbps LAN, 1x1Gbps configurable LAN/WAN, up to 75 VPN tunnels, 50 IPsec tunnels, 950 Mbps firewall throughput, 50,000 sessions, 300 policies, 16 VLANs, and RIPv1/v2/OSPF dynamic routing.
• Trusted Expertise: Backed by D-Link's Limited Lifetime Warranty, ensuring long-term reliability.

4. Guia de configuració

4.1 Instal·lació física

1. Connecteu-vos a l'alimentació: Connect the provided AC/DC power adapter to the router's power input and plug it into a power outlet.
2. Connexió a Internet (WAN): Connect your modem or internet service provider's device to the router's WAN port using an Ethernet cable. The DSR-250V2 supports multiple WAN connections for failover or load balancing.
3. Connecta dispositius locals (LAN): Connect your computers, switches, or other network devices to the LAN ports using an Ethernet cable.
4. Connexió USB opcional: For mobile broadband backup, connect a compatible 3G/4G/5G USB modem to the USB port.
5. Port de la consola: The console port is available for command-line interface (CLI) management, typically used by advanced users or network administrators.

Image: Front panel of the DSR-250V2, highlighting the WAN, LAN, Console, and USB ports for connectivity.

Image: Rear panel of the DSR-250V2, showing the power input and reset button.

4.2 Configuració inicial

After physical installation, access the router's web-based management interface from a connected computer. Refer to the Quick Installation Guide for default IP address and login credentials. It is recommended to change the default password immediately for security purposes.

5. Instruccions de funcionament

5.1 Configuració de VPN

The DSR-250V2 supports various VPN protocols to establish secure connections for remote access or site-to-site links. These include IPSec, PPTP, L2TP, OpenVPN, and SSL VPN. The web interface provides detailed options for configuring VPN tunnels, including encryption algorithms (DES, 3DES, AES), authentication methods, and tunnel parameters.

Image: Diagram illustrating how the DSR-250V2 facilitates secure VPN connections for main offices, branch offices, and mobile users using various VPN protocols.

5.2 Dual WAN Failover and Load Balancing

Configure multiple WAN connections to ensure continuous internet access. In a failover setup, if the primary WAN connection fails, the router automatically switches to a secondary connection. Load balancing distributes traffic across multiple active WAN links, optimizing bandwidth utilization and improving overall network performance.

Image: Diagram illustrating a Dual WAN setup for redundant internet, utilizing both Ethernet and mobile broadband connections for continuous service.

5.3 Funcions de seguretat avançades

• Protecció del tallafoc: The router includes a high-performance firewall with up to 950 Mbps throughput, supporting numerous policies for network protection.
• Web Filtret de contingut: Implement static or dynamic web content filtering to block malicious objects, specific URLs by keyword, or categories like social networking and gaming.
• Control d'aplicacions: Manage network traffic by allowing specific applications, prioritizing critical services (e.g., VoIP), and limiting bandwidth for non-essential uses.
• Portal captiu: Control network access for guests and employees with customizable landing pages and various authentication methods (e.g., Microsoft Windows Active Directory, local database, RADIUS).

Image: Illustration of the Application Control feature, demonstrating how the router can manage and prioritize traffic for different online services.

Image: Visual representation of Web Content Filtering, showing the router's ability to block various categories of online content.

6. Manteniment

To ensure optimal performance and security of your DSR-250V2 router, regular maintenance is recommended:

• Actualitzacions de firmware: Comproveu periòdicament el suport de D-Link weblloc web per a les darreres actualitzacions de firmware. L'aplicació d'actualitzacions pot millorar el rendiment, afegir noves funcions i solucionar vulnerabilitats de seguretat.
• Còpia de seguretat de la configuració: Regularly back up your router's configuration settings. This allows for quick restoration of your network settings in case of an unexpected issue or hardware replacement.
• Inspecció física: Ensure the router is placed in a well-ventilated area to prevent overheating. Keep ports and cables free from dust and damage.
• Gestió de contrasenyes: Use strong, unique passwords for accessing the router's management interface and VPN connections. Change passwords periodically.

7. Solució De Problemes

If you encounter issues with your DSR-250V2 router, consider the following troubleshooting steps:

• Sense accés a Internet:
  • Verifiqueu que el mòdem funciona correctament i que té una connexió a Internet activa.
  • Check all Ethernet cable connections between the modem and the router's WAN port, and between the router and your devices.
  • Restart the modem and then the router.
  • Confirm WAN settings in the router's web interface (e.g., DHCP, Static IP, PPPoE).
• Problemes de connexió VPN:
  • Ensure VPN server settings on the router and client settings match exactly.
  • Check firewall rules to ensure VPN traffic is allowed.
  • Verify user credentials for VPN access.
• Rendiment de xarxa lent:
  • Comproveu si hi ha trànsit de xarxa excessiu o aplicacions que consumeixen molta amplada de banda.
  • Ensure Quality of Service (QoS) settings are configured appropriately to prioritize critical traffic.
  • Verify that all connected devices are operating at their expected link speeds (Gigabit, etc.).
• El router no respon:
  • Perform a soft reboot by unplugging the power adapter for 10 seconds and plugging it back in.
  • If the issue persists, a factory reset may be necessary (refer to the Quick Installation Guide for instructions). Note that a factory reset will erase all custom configurations.

For further assistance, please contact D-Link Technical Support.

8. Especificacions

9. Garantia i Suport

The D-Link DSR-250V2 Gigabit VPN Router is backed by D-Link's Limited Lifetime Warranty, providing long-term confidence in the quality and reliability of your network infrastructure. For detailed warranty terms, technical support, and additional resources, please visit the official D-Link support weblloc o poseu-vos en contacte amb el seu servei d'atenció al client.