D-Link DFL-1660 – NetDefend Network UTM Firewall with 6 Configurable Gigabit Ports, IPS / Antivirus / Web Content Filtering, 1.2Gbps Firewall Throughput & 19” Rack-Mount Design
Overview:
• The D-Link DFL-1660 is a NetDefend Network UTM Firewall designed to protect business networks against viruses, unauthorized intrusions, malicious content, and application-based threats.
• It provides unified threat management features including firewall, VPN, intrusion detection and prevention, antivirus, web content filtering, traffic load balancing, and bandwidth management.
• The firewall includes 6 configurable Gigabit Ethernet ports, 2 reserved USB ports, and 1 DB-9 RS-232 console port.
• It delivers firewall throughput up to 1.2Gbps, VPN throughput up to 350Mbps, IPS throughput up to 400Mbps, antivirus throughput up to 225Mbps, and supports up to 600,000 concurrent sessions.
• The DFL-1660 supports advanced VPN features including IPSec, PPTP / L2TP server, Hub and Spoke, IPSec NAT Traversal, and up to 2500 dedicated VPN tunnels.
• This product is listed by D-Link MEA as discontinued, making it mainly suitable for legacy replacement, support, or expansion in existing D-Link NetDefend firewall environments.
Key Features:
• NetDefend Network UTM Firewall.
• 1U 19” rack-mount design.
• 6 configurable Gigabit Ethernet ports.
• 2 reserved USB ports.
• DB-9 RS-232 console port.
• Firewall throughput up to 1.2Gbps.
• VPN throughput up to 350Mbps.
• IPS throughput up to 400Mbps.
• Antivirus throughput up to 225Mbps.
• Supports up to 600,000 concurrent sessions.
• Supports up to 15,000 new sessions per second.
• Supports up to 4,000 policies.
• Intrusion Detection and Prevention System IDP / IPS.
• Gateway antivirus with Kaspersky signatures.
• Web Content Filtering WCF.
• URL blacklist and whitelist support.
• Script filtering for Java, Cookie, ActiveX, and VB.
• Supports NAT and PAT.
• Supports transparent mode.
• Supports policy-based routing.
• Supports IEEE 802.1Q VLAN up to 1024.
• Supports IGMPv3 multicast.
• Supports outbound load balancing.
• Supports server load balancing.
• Supports WAN failover and Active-Passive HA.
• Supports policy-based traffic shaping and bandwidth management.
• 80 PLUS internal power supply.
• Limited lifetime warranty listed on product page.
• Product status: Discontinued.
Technical Specifications:
• Product Type: UTM Firewall
• Brand: D-Link
• Model: DFL-1660
• Series: NetDefend
• Form Factor: 1U 19” Rack-Mount
• Ethernet Interfaces: 6 × Configurable Gigabit Ports
• USB Ports: 2 × USB Ports Reserved
• Console Port: 1 × DB-9 RS-232
• Firewall Throughput: 1.2Gbps
• VPN Throughput: 350Mbps
• IPS Throughput: 400Mbps
• Antivirus Throughput: 225Mbps
• Concurrent Sessions: 600,000
• New Sessions: 15,000 Sessions Per Second
• Policies: 4,000
• Firewall Features: Transparent Mode, NAT, PAT, OSPF, H.323 NAT Traversal, Time-Scheduled Policies, Application Layer Gateway, ZoneDefense
• Networking: DHCP Server / Client, DHCP Relay, Policy-Based Routing, IEEE 802.1Q VLAN 1024, IGMPv3
• VPN Tunnels: 2500 Dedicated VPN Tunnels
• VPN Protocols: IPSec, PPTP / L2TP Server
• VPN Features: Hub and Spoke, IPSec NAT Traversal
• Encryption Methods: DES, 3DES, AES, Twofish, Blowfish, CAST-128
• Traffic Load Balancing: Outbound Load Balancing, Server Load Balancing, Traffic Redirect at Failover
• Load Balance Algorithms: Round-Robin, Weight-Based Round-Robin, Destination-Based, Spill-Over
• Bandwidth Management: Policy-Based Traffic Shaping, Guaranteed Bandwidth, Maximum Bandwidth, Priority Bandwidth, Dynamic Bandwidth Balancing
• High Availability: WAN Failover, Active-Passive Mode, Device Failure Detection, Link Failure Detection
• IPS / IDP: Automatic Pattern Update, DoS / DDoS Protection, E-mail Attack Alarm, Advanced IDP / IPS Subscription, IP Blacklist by Threshold or IDP / IPS
• Content Filtering: URL Blacklist / Whitelist, Java / Cookie / ActiveX / VB Script Filtering, E-mail Blacklist / Whitelist, External Database Content Filtering
• Antivirus: Real-Time AV Scanning, Unlimited File Size, Scans VPN Tunnels, Supports Compressed Files, Kaspersky Signature Licensor, Automatic Pattern Update
• Power Supply: 80 PLUS Internal Power Supply
• Dimensions: 440 × 400 × 44 mm
• Operating Temperature: 0°C to 40°C
• Storage Temperature: -20°C to 70°C
• Operating Humidity: 5% to 95%, Non-Condensing
• EMI: FCC Class A, CE Class A, C-Tick, VCCI
• Safety: cUL, CB
• MTBF: 400,000 Hours
• Product Status: Discontinued
Applications:
• Business network perimeter security.
• UTM firewall deployment for offices and branches.
• Intrusion prevention and antivirus gateway protection.
• Employee internet control and web content filtering.
• Secure VPN connectivity between head office and branches.
• Remote user VPN access.
• Network segmentation using VLAN.
• Policy-based routing and bandwidth management.
• WAN failover and high availability firewall deployments.
• Legacy D-Link NetDefend firewall replacement or support projects.
• Rack-mounted security appliance installations.
Connect Gates Recommendation:
• Recommended only for legacy D-Link NetDefend UTM Firewall environments where DFL-1660 compatibility, replacement, or support is required.
• Suitable for existing business networks that already use D-Link NetDefend UTM services and need continuity with the same platform.
• Best used when the client needs 6 configurable Gigabit ports, UTM security, IPS, antivirus, web content filtering, VPN, load balancing, and 1U rack-mount installation.
• For new security projects, Connect Gates recommends reviewing newer next-generation firewall solutions with updated threat protection, active security subscriptions, higher throughput, and current vendor support.