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Marit · 09-16-2025

Description This article describes how to resolve VA scan (Rapid7) failures where the scan result shows an 'Inconclusive host' message. Scope FortiGate, VA scan. Solution Use Case: An environment with two FortiGate devices configured with FGCP (FGT-1...

Marit · 05-09-2025

Description This article explains the key debug messages generated by the FortiGate LTE module during the startup sequence, specifically, when the WWAN interface is changed from down to up and acquires an IP address via DHCP. Scope FortiGate 40F-3G4G...

Marit · 03-27-2025

Description This article describes the TCP state machine using output from the 'diagnose sys session stat' command. Scope FortiGate V7.2. Solution When using 'diagnose sys session stat' to retrieve session statistics on a FortiGate device, various TC...

Marit · 03-26-2025

Description This article explains the impact on FortiGate when the tcp-halfopen-timer value is increased. Scope FortiGate v7.2, Python. Solution The tcp-halfopen-timer defines the number of seconds the FortiGate should wait before closing a session a...

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Technical Tip: Rapid7 VA scan fails with the error message 'Inconclusive host'

Technical Tip: Understanding LTE (3G/4G) Startup Debug Messages on FortiGate

Technical Tip: Understanding the TCP State Machine via diagnose sys session stat

Technical Tip: FortiGate Behavior When Increasing tcp-halfopen-timer

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