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aionescu · 09-27-2021

DescriptionThis article shows how the FortiGate manages the IPsec SAs when DPD is configured as on-demand compared to on-idle.Related documents.https://docs.fortinet.com/document/fortigate/6.2.8/cookbook/785501/forticlient-as-dialup-client https://da...

aionescu · 09-09-2021

DescriptionThis article describes the format for DHCP option 43 to specify while the FortiGate is configured as DHCP server.Related documents.RFC 2132: DHCP Options and BOOTP Vendor Extensions (rfc-editor.org)Configuring DHCP Option 43 (cisco.com)Uni...

aionescu · 08-09-2021

DescriptionThis article describes how to configure the FortiGate to avoid routing issues after a route change when SNAT session preservation is used.SolutionThere are situations when, multiple links are needed to reach different resources. For exampl...

aionescu · 08-03-2021

DescriptionThis article describes how to use automation stitches to automatically send alert emails if the status of the VPN tunnel changes.Related document.https://help.fortinet.com/fos60hlp/60/Content/FortiOS/fortigate-system-administration/Monitor...

aionescu · 06-24-2021

DescriptionThis article explains the result of selector narrowing in conjunction with IKE v2.Reference:https://datatracker.ietf.org/doc/html/rfc5996SolutionUnlike IKEv1, IKEv2 allows the responder to choose a subset of the traffic proposed by the ini...

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Technical Tip: Explanation of the DPD effect on a dialup IPsec tunnel SA lifetime

Technical Tip: FortiGate DHCP option 43 configuration for Cisco and Ubiquiti units

Technical Tip: Configuration to avoid routing issues after a route change in conjunction with SNAT session preservation

Technical Tip: Email alert notification when IPsec VPN tunnel is down

Technical Tip: IKE v2 traffic selector narrowing

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