Troubleshooting Tip: MTU calculations for IPsec tu...

pdhillon · 06-25-2025

Description This article describes the issue that occurs when a tunnel is created on an NPU interface; it inherits the MTU settings from the parent interface, which can cause problems in certain environments. Scope FortiGate Solution In the example b...

pdhillon · 06-13-2025

Description This article explains the various errors that may be encountered while adding a new FortiGate to FortiManager, and the possible solutions. Scope FortiGate, FortiManager. Solution When onboarding FortiGate to FortiManager, it is usually a ...

pdhillon · 07-28-2024

Description This article describes how it is possible to achieve the requirement of routing local traffic for backup configuration through a specific interface. Scope FortiGate. Solution There are some requirements when wanting to specify outgoing tr...

pdhillon · 07-18-2024

Description The article describes one way to use a filter on the NP7 sniffer captures. Scope FortiGate. Solution In the example below, the bidirectional traffic is captured on the interface lag1.55 between the source 172.20.6.1 and 10.0.165.5: NP7 Sn...

pdhillon · 04-07-2024

Description This article describes the troubleshooting approach and debugging steps required to address MAC filtering issues for WIFI users on FortiGate. Scope FortiGate, FortiNAC. Solution In the following configuration, an access point is being man...

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