About jcovarrubias

jcovarrubias · 12-23-2024

Description This article describes a scenario in which a VPN tunnel does not establish when using secondary IP addresses and presents a 'no proposal chosen' error in the IKE debugs. Scope FortiGate Solution Overview: When configuring IPsec VPN tunnel...

jcovarrubias · 12-04-2024

Description This article provides a comprehensive guide to managing memory on FortiGate, focusing on long-term strategies to prevent conserve mode and ensure optimal performance. Scope FortiGate. Solution Why Long-Term Focus is Needed: Conserve mode ...

jcovarrubias · 11-11-2024

Description This article describes a scenario where a High-Availability (HA) FortiGate pair upgrade becomes stuck in SENT-IMAGE status. Scope FortiGate Solution Pre-requisites: Understanding of the High-Availability upgrade process as documented in T...

jcovarrubias · 10-20-2024

Description This article describes the reasons why the FortiGate is missing a large amount of signatures. Scope FortiGate v7.0, v7.6 Solution In some instances, upon review of the application signature platform, whether that isin profile or proxy mod...

jcovarrubias · 10-14-2024

Description This article describes tips to interpret SNMP (Simple Network Management Protocol) debug output as a user downloads malware file. Step-by-step instructions are provided on how to read and analyze SNMP debug output. Scope All FortiGate mod...

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Technical Tip: VPN IKE Tunnel fail to come up 'no proposal chosen' local-gw with secondary IP addresses

Technical Tip: Memory Management: A Long-Term Strategy to Prevent Conserve Mode

Troubleshooting Tip: FortiGate High-Availability (HA) Upgrade: Troubleshooting SENT-IMAGE Status Loop

Technical Tip: FortiGate missing significant number of signatures

Technical Tip: SNMP debugging deep dive for Antivirus TRAPS