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dchan · 01-02-2015

DescriptionThere have been reports of instability when using a Verizon Pantech UML290 3G/4G modem with a FortiGate. The modem sometimes disconnects and reconnects on its own. SolutionThe problem is caused by the modem switching randomly from 3G to 4G...

dchan · 02-28-2010

Description Topology Fortigate A -------Fortigate B -------ISP1 --> ISP2 -----ISP (N) --------Fortiguard Server Problem FortiGate A and B are in NAT mode. FortiGate B has no problem communicating with the Fortiguard Web filter server in Port 53 or Po...

dchan · 02-28-2010

Description This article describes how to load firmware and/or configuration backup from a USB drive Scope FortiGate 6.2+ Solution In scenarios where technical staff or a console cable are not available, it is possible to leverage a USB thumb drive t...

dchan · 02-28-2010

Description When 2 FortiGates are in HA Cluster, the “boot alternative firmware” option is not available via the GUI. To be able to use the “boot alternate firmware” option, it is necessary to break the HA Cluster (For example shutdown the Slave Fort...

dchan · 02-19-2010

DescriptionScenario: Multiple connections with multiple ISPs, policy routes are configured to route particular hosts/subnets on internal network to a certain ISP connection (port1, 2) Virtual IP: 1) SMTP Server 10.10.10.33 External IP = 1.1.1.33 Inte...

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Verizon Pantech UML290 instability issue

Technical Tip: High number Source Port can be blocked by ISP

Technical Tip : Firmware Upgrade and Configuration Restore using a USB drive

Technical Tip : How to boot alternative FortiGate firmware when running in HA mode

Technical Tip : Policy Based Routing may block the access to an external VIP (Virtual IP) from an internal interface

Technical Tip : Firmware Upgrade and Configuration...

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