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D-Link DSR-250 User Manual

D-Link DSR-250
233 pages
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Unified Services Router
User Manual
DSR-250 / 250N / 500 / 500N / 1000 / 1000N
Ver. 1.04
http://security.dlink.com
Building Networks for People
Small Business Gateway Solution

Table of Contents

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D-Link DSR-250 Specifications

General IconGeneral
VPN SupportYes
Concurrent Sessions20000
VPN Throughput200 Mbps
Max. Number of VPN Tunnels25
Power SupplyExternal Power Adapter
Dimensions280 x 180 x 44 mm
Humidity10% to 90% non-condensing
Encryption3DES, AES
Flash Memory32 MB
Operating Temperature0°C to 40°C
Storage Temperature-20°C to 70°C (-4°F to 158°F)
LAN Ports8 x Gigabit Ethernet

Summary

Chapter 2. Configuring Your Network: LAN Setup

Chapter 3. Connecting to the Internet: WAN Setup

3.4 Features with Multiple WAN Links

Explains failover and load balancing features for WAN connectivity.

Chapter 4. Wireless Access Point Setup

Chapter 5. Securing the Private Network

5.1 Firewall Rules

Restricts inbound and outbound Internet traffic by defining rules.

5.3 Configuring Firewall Rules

Details creating new inbound/outbound rules, specifying zones, services, and actions.

5.8 Web Content Filtering

Provides options to block or allow web-based content, circumventing firewall rules.

5.8.1 Content Filtering

Enables blocking proxy servers, preventing ActiveX downloads, and managing cookies.

5.9 IP/MAC Binding

Enhances security by allowing outbound traffic only from IP addresses matching bound MAC addresses.

5.10 Intrusion Prevention (IPS)

Prevents malicious attacks from the internet using static attack signatures.

5.11 Protecting from Internet Attacks

Manages WAN security threats like ping requests, ARP scans, and TCP/UDP floods.

Chapter 6. IPsec / PPTP / L2TP VPN

6.1 VPN Wizard

Quickly creates IKE and VPN policies for secure tunnels.

6.2 Configuring IPsec Policies

Sets up IPsec policies between the router and gateways or remote clients.

6.3 Configuring VPN clients

Details configuring remote VPN clients with policy parameters and user databases.

6.4 PPTP / L2TP Tunnels

Supports VPN tunnels from PPTP or L2TP ISP servers for secure data transfer.

6.4.1 PPTP Tunnel Support

Configures PPTP VPN clients to access remote networks.

6.4.2 L2TP Tunnel Support

Configures L2TP VPN servers for LAN and WAN client access.

6.4.3 OpenVPN Support

Allows OpenVPN setup using pre-shared keys, certificates, or username/password.

Chapter 7. SSL VPN

7.1 Groups and Users

Allows creating, editing, and deleting user groups for access control.

7.1.1 Users and Passwords

Details user configuration, including name, password, group selection, and idle timeout.

7.2 Using SSL VPN Policies

Creates SSL VPN policies at Global, Group, or User level for network resource access.

7.2.1 Using Network Resources

Defines network resources (services/IPs) to simplify SSL VPN policy creation.

7.3 Application Port Forwarding

Enables remote SSL users to access specific network applications via port forwarding.

7.4 SSL VPN Client Configuration

Provides point-to-point connection setup for SSL VPN clients.

7.5 User Portal

Allows remote users to log in via a portal for authentication and access level configuration.

Chapter 8. Advanced Configuration Tools

8.3 Authentication Certificates

Uses digital certificates for IPsec VPN authentication and SSL validation.

Chapter 9. Administration & Management

9.1 Configuration Access Control

Manages GUI access via LAN/WAN IP addresses and user login policies.

9.1.1 Remote Management

Restricts HTTPS and Telnet access to specific IP addresses.

9.4 Log Configuration

Captures log messages for traffic, VPN, wireless, and security events.

9.4.1 Defining What to Log

Determines log granularity and facilities (Kernel, System, Wireless, Local-UTM).

9.5 Backing up and Restoring Configuration Settings

Saves router configuration to a file for backup or restore operations.

9.6 Upgrading Router Firmware

Updates the router's software to a newer version.

9.7 Dynamic DNS Setup

Allows routers with varying public IP addresses to be located using internet domain names.

9.8 Using Diagnostic Tools

Provides tools like Ping, Trace Route, and DNS Lookup for network analysis.

Chapter 10. Router Status and Statistics

10.1.1 Device Status

Summarizes router configuration, serial number, firmware version, and interface information.

Chapter 11. Trouble Shooting

11.1 Internet connection

Addresses issues with accessing the router's web interface or the internet.

11.4 Restoring factory-default configuration settings

Details how to reset the router to its original factory default settings.

Appendix B. Factory Default Settings

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