Troubleshooting Tip: IPsec VPNs tunnels

sgiannogloudis · 05-28-2024

Description This article describes how to add DSCP tags on FortiOS locally generated traffic. Scope FortiOS v7.4.4. Solution Consider a scenario where a network administrator has the following topology: There are multiple spoke devices connected to t...

sgiannogloudis · 05-02-2024

Description This article describes how to securely encrypt and authenticate HA traffic Scope 7.4.2+ GA Releases. Solution Consider a scenario where a network administrator has the following topology: There is an HA cluster which consists of two units...

sgiannogloudis · 03-27-2024

Description This article describes the capability of FortiOS to check if there is an existing session established with an IP that now belongs to the External Threat Feed list. Scope FortiGate v7.2.1+ Solution Let's assume a network administrator is m...

sgiannogloudis · 02-02-2024

Description This article describes the capabilities of VRF0. Scope FortiGate v6.x and v7.x. Solution FortiGate has been configured with one physical interface 'port3' which belongs to the default VRF and one loopback named 'loopback_Test' on VRF 1. T...

sgiannogloudis · 12-11-2023

Description This article describes how to identify the root cause of an hasync high CPU utilization. Scope FortiGate v6.x and v7.x. Solution Let's assume a network administrator identifies that his device has high CPU usage on one of its CPU cores. B...

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Technical Tip: Injection of DSCP markings on FortiGate's self generated traffic

Technical Tip: Encryption & Authentication of HA traffic via IKE daemon

Technical Tip: Dynamically update FortiOS session list table when External Feed list is being updated

Technical Tip: Properties of VRF0 inside FortiOS

Technical Tip: Troubleshooting methodology of hasync process high CPU usage

Troubleshooting Tip: IPsec VPNs tunnels

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Troubleshooting Tip: Collect GUI slowness and erro...

Technical Tip: Nturbo functions within FortiOS

Technical Tip: Removal of maintainer account featu...

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