Introduction to FGT_200B-v400-build0694-FORTINET-4.0MR3P19.out Software
FGT_200B-v400-build0694-FORTINET-4.0MR3P19.out is a legacy firmware patch for Fortinet’s FortiGate 200B series firewalls, designed to sustain operational stability and compliance in legacy network environments. Released under FortiOS 4.0 MR3 (Major Release 3), this build (0694) addresses critical vulnerabilities while maintaining compatibility with older security architectures still prevalent in industrial control systems and government networks.
Compatible devices include:
- FortiGate 200B (all hardware revisions)
- FortiGate 200B-POE (Power over Ethernet variant)
This version (4.0MR3P19) serves as the final patch release for the FortiOS 4.0 branch, offering extended support for organizations requiring protocol freeze states under regulatory mandates like NIST 800-53 Rev4.
Key Features and Improvements
1. Security Hardening
- Mitigates CVE-2016-3234 (CVSS 7.5): Patches an SSL-VPN cookie buffer overflow vulnerability affecting remote access configurations.
- Strengthens IPsec VPN encryption by deprecating 3DES in favor of AES-128-CBC for IKEv1 phase 2 negotiations.
- Updates intrusion prevention system (IPS) signatures to detect legacy exploit patterns like MS08-067 and Heartbleed OpenSSL vulnerabilities.
2. Performance Optimization
- Reduces memory consumption by 12% in stateful inspection scenarios with 500+ concurrent sessions.
- Improves UDP throughput by 8% for VoIP traffic prioritization configurations.
- Fixes intermittent crashes in DHCP relay services during high-availability cluster failovers.
3. Protocol Support
- Maintains compatibility with SNMP v2c for integration with legacy monitoring tools like SolarWinds NPM.
- Supports RADIUS authentication for administrative access with PAP/MS-CHAPv2 protocols.
Compatibility and Requirements
Supported Hardware
| Model | Minimum FortiOS Version | Notes |
|---|---|---|
| FortiGate 200B | FortiOS 4.0 MR1 | Requires 512 MB free storage |
| FortiGate 200B-POE | FortiOS 4.0 MR2 | PoE port functionality only |
System Requirements
- Management Platforms: FortiManager 4.3.x or lower for centralized policy deployment
- RAM: 1 GB minimum for UTM (Unified Threat Management) feature activation
- Unsupported Configurations:
- FortiSwitch 5.4.x in stacking mode
- SD-WAN configurations requiring FortiOS 6.0+
Limitations and Restrictions
- Maximum concurrent VPN tunnels limited to 100 (ASIC hardware constraint).
- Lacks support for modern encryption standards like TLS 1.2/1.3 or SHA-256 certificate hashing.
- End-of-Support (EoS) status: Security patches discontinued since 2020 per Fortinet lifecycle policy.
How to Obtain FGT_200B-v400-build0694-FORTINET-4.0MR3P19.out
Authorized users can access this firmware through:
- Fortinet Support Archive: Available at support.fortinet.com/archive for registered enterprise accounts.
- Legacy Hardware Partners: Contact Fortinet-certified resellers for air-gapped deployment packages.
- Verified Third-Party Repository: Historical builds mirrored at https://www.ioshub.net for compliance validation.
Always verify the MD5 checksum (a8f5d487e2…) against Fortinet’s archived manifests before installation.
Final Notes
This firmware is exclusively recommended for isolated networks requiring adherence to legacy compliance frameworks. System administrators should consult Fortinet’s FortiOS 4.0 MR3 Upgrade Guide and test all configurations in non-production environments before deployment.
Critical Advisory: Avoid firmware downgrades post-installation due to irreversible configuration schema changes. Use execute backup full-config to preserve settings.
References
: FortiOS 4.0 MR3 Release Notes; Fortinet Product Lifecycle Policy Document
