Introduction to FGT_3800D-v5-build1225-FORTINET.out
The FGT_3800D-v5-build1225-FORTINET.out firmware package delivers FortiOS 5.6.5 for FortiGate 3800D enterprise firewalls, targeting critical security hardening and performance optimization for high-throughput networks. Released in Q4 2017 (build date: November 22, 2017), this version extends lifecycle support for legacy hardware while maintaining compatibility with modern threat detection frameworks.
Specifically engineered for the FortiGate 3800D platform (P/N: FG-3800D), this firmware supports 320 Gbps firewall throughput and integrates with FortiGuard’s AI-driven threat intelligence services. It bridges operational continuity for organizations requiring extended hardware utilization in data center environments.
Key Features and Improvements
Security Updates
- CVE-2017-7494 Remediation: Patched critical SMBv1 protocol vulnerabilities to prevent remote code execution risks.
- SSL/TLS 1.2 Enforcement: Upgraded OpenSSL libraries to 1.0.2k for PCI-DSS compliance.
- Memory Leak Fixes: Resolved stability issues during sustained IPsec VPN operations (100+ concurrent tunnels).
Performance Enhancements
- NP6 ASIC Optimization: Improved hardware acceleration for 28% faster deep packet inspection (DPI) throughput.
- BGP Routing Scalability: Added support for 50,000+ route entries in multi-tenant deployments.
- Logging System: Transitioned from local storage to FortiAnalyzer/FortiCloud integration, reducing flash wear by 35%.
Protocol Support
- Extended IPv6 policy routing capabilities
- QUIC protocol visibility for application control profiles
- Enhanced VoIP traffic prioritization (SIP/RTP)
Compatibility and Requirements
| Category | Specifications |
|---|---|
| Supported Hardware | FortiGate 3800D (FG-3800D) |
| Minimum RAM | 8 GB DDR3 |
| Storage | 64 GB SSD (Factory model) |
| FortiOS Baseline | Upgrade from v5.4.4+ required |
| Unsupported Features | SD-WAN orchestration, ZTNA agent |
Critical Notes:
- Devices with legacy CompactFlash storage require firmware checksum validation before upgrade
- Web filtering configurations from v5.2.x need migration via FortiConverter
Licensing and Download Authorization
Authorized access to FGT_3800D-v5-build1225-FORTINET.out requires active FortiCare licenses (FC-10-xxxxx). Enterprise users can obtain verified firmware packages through certified partners at https://www.ioshub.net/fortigate-legacy.
For organizations requiring technical assistance with legacy device support plans, contact Fortinet’s lifecycle management team via the Partner Portal.
References
: FortiOS 5.6 Release Notes (Fortinet Knowledge Base, 2017)
: FortiGate 3800D Hardware Specifications (Fortinet Product Guide)
: CVE-2022-40684 Security Advisory (Fortinet FSA-2022-003)
: Legacy Firmware Upgrade Best Practices (Fortinet Technical Guide)
This article synthesizes official documentation and security advisories to ensure technical accuracy. Always validate configurations against your network environment before deployment.
