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edyrmishi
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‎11-19-2025
Last activity: Nov 19, 2025 9:19:03 AM
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Technical Tip: Configuring CRL check for Dialup IPsec VPN with certificate authentication using FortiAuthenticator as the CRL provider

11-06-2025
Description This article describes how to configure Certificate Revocation List (CRL) checks for dial-up IPsec VPN users authenticated with certificates on a FortiGate. Both file-based CRL import and online CRL updating methods are covered. In this s...

Technical Tip: FortiClient v7.4.4 fails to send Traffic over IKEv2 tunnel with AES256-SHA512 proposals

10-27-2025
Description This article describes an issue where FortiClient does not forward traffic to the FortiGate over an IKEv2 IPsec tunnel when both Phase 1 and Phase 2 are configured with the AES256-SHA512 proposal. The behavior has been observed following ...

Technical Tip: FortiView SD-WAN widgets showing no data in FortiAnalyzer

09-29-2025
Description This article describes the FortiGate-side changes that commonly restore missing SD-WAN information in FortiAnalyzer's FortiView SD-WAN widgets. Scope FortiGate, FortiAnalyzer. Solution Even if FortiAnalyzer successfully receives SD-WAN lo...

Technical Tip: IPsec VPN flapping, DPD/ESP (unknown SPI) errors due to HA split-brain

08-26-2025
Description This article describes a specific scenario where, due to an HA split-brain scenario, an IPsec tunnel flaps and repeated rekey/ESP SPI mismatches are noticed. Scope FortiGate HA. Solution If repeated Received ESP packets with unknown SPI e...

Technical Tip: How to safely delete Local-in Policies when SSL VPN with a Geo-Location restriction is applied

06-24-2025
Description This article describes how to safely remove local-in policies that restrict SSL VPN connections on the FortiGate to specific countries using GEO-IP address objects. It emphasizes the importance of deleting these policies in the correct or...
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