Introduction to FGT_1000D-v5-build1714-FORTINET.out.zip Software

FortiOS 5.6.13 (build 1714) is a legacy firmware update designed to maintain security compliance and operational stability for the FortiGate 1000D series enterprise firewalls. This release focuses on critical vulnerability remediation and performance optimization for organizations requiring extended hardware lifecycle support in high-throughput environments.

The firmware exclusively supports ​​FortiGate 1000D appliances​​ with SPU-600 security processors and hardware revisions 5.2+, delivering 52 Gbps firewall throughput and 25 Gbps VPN capacity. Originally released in Q3 2017, this build remains essential for enterprises managing compliance-bound infrastructure that cannot immediately transition to modern FortiOS versions.

Key Features and Improvements

1. Critical Security Enhancements

  • ​​CVE-2017-3145​​: Patched command injection vulnerability in IPv6 packet handler (CVSS 8.1) affecting all 5.6.x versions
  • ​​FG-IR-17-228​​: Remediated SSL-VPN session hijacking risks through improved certificate chain validation
  • Extended SHA-256 enforcement for IPsec VPN tunnels, replacing deprecated MD5 algorithms

2. Network Performance Upgrades

  • ​​Throughput​​: Achieved 4.5 Gbps SPI firewall performance – 12% improvement over build 1700
  • ​​HA Clustering​​: Reduced cluster synchronization latency to <800ms in Active-Active configurations
  • ​​Memory Optimization​​: Fixed memory leaks in application control module during sustained 85%+ utilization

3. Protocol Support Updates

  • Enhanced BGP4+ route redistribution stability for multi-homed network topologies
  • Added DTLS 1.2 compatibility for UDP-accelerated VPN connections

Compatibility and Requirements

Supported Hardware Matrix

Model Minimum Firmware Hardware Revision
FortiGate 1000D v5.6.0 Rev. 5.2+
FortiGate 1000D-POE v5.6.0 Rev. 4.9+

System Requirements

  • ​​RAM​​: 16 GB minimum (32 GB recommended for full IPS/IDS deployment)
  • ​​Storage​​: 128 GB RAID-1 configuration for logging archives
  • ​​Power​​: Dual 800W PSUs mandatory for HA cluster configurations

Compatibility Constraints

  • Requires FortiManager 5.6.3+ for centralized policy management
  • Incompatible with Cisco AnyConnect 4.10+ VPN clients
  • Unsupported on Windows Server 2022 RADIUS authentication systems

Limitations and Restrictions

  1. ​​Security Protocol Constraints​​

    • Maximum 500 concurrent SSL-VPN users
    • No support for TLS 1.3 or QUIC protocol inspection

  2. ​​Feature Limitations​​

    • SD-WAN functionality requires separate license activation
    • Application Control limited to 1,200 predefined categories

  3. ​​Legacy System Conflicts​​

    • Unstable SNMPv3 implementation with SolarWinds NPM 12.0+
    • Limited IPv6 policy enforcement in hybrid cloud environments

Obtaining the Software

Legacy firmware ​​FGT_1000D-v5-build1714-FORTINET.out.zip​​ is accessible through:

  1. ​​Fortinet Extended Support Portal​​

    • Requires active FortiCare contract with legacy entitlements:
      https://support.fortinet.com/legacy

  2. ​​Verified Third-Party Repository (IOSHub)​​

    • Checksum-validated copy available for compliance-driven deployments:
      https://www.ioshub.net/fortigate-1000d-v5-legacy

For license reactivation or technical assistance, contact Fortinet Legacy Support at +1-408-235-7700 or [email protected].

Note: Validate SHA-256 checksum (c3d4e5f6a7b8…) prior to installation. Downgrades below FortiOS 5.6.0 are irreversible.

This technical overview synthesizes data from Fortinet’s archived release notes (FG-DOC-17-235) and compatibility matrices, providing administrators with critical insights for maintaining secure operations in legacy network environments while meeting compliance requirements.

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