Technical Tip: BGP is flapping

rbarnes · 12-11-2024

Description This article describes how to resolve an issue where the SSL VPN web portal is configured with an RDP widget. When trying to connect to the RDP widget on the SSL VPN portal, the connection is closed. Error Message: Scope FortiGate. Soluti...

rbarnes · 11-29-2024

Description This article describes the case when: FortiGate is configured in Azure. Passive FTP traffic failing to get directory listing. Passive FTP failing to transfer files. Scope FortiGate Azure VM. Solution VIP is already configured for the serv...

rbarnes · 09-10-2024

Description This article provides a scenario where there is a BGP setup between 2 devices. One or both FortiGates BGP is flapping up and down. Scope FortiGate. Solution A common cause of this is ISP connectivity or packet loss. Step 1. Check connecti...

rbarnes · 09-04-2024

Description This article describes the scenario where an IPsec VPN is built to a third-party firewall or VPN appliance and the phase2 is failing. The issue is caused by the spi keys that are not read in the same order by the third-party device. This ...

rbarnes · 09-02-2024

Description This article describes how to troubleshoot policy routes. Scope FortiGate. Solution Here are the commands to troubleshoot: diag firewall proute listdiag firewall iprope list. Get router info kernel.get router info routing-table all diag d...

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Troubleshooting Tip: RDP widget not connecting to a server

Troubleshooting Tip: Passive FTP not functioning correctly with Azure FortiGate VM

Technical Tip: BGP is flapping

Troubleshooting Tip: IPsec dialup or site to site to a third-party firewall or VPN appliance

Troubleshooting Tip: Policy routing

Technical Tip: BGP is flapping

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