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DuyNguy
Staff
Staff
October 22, 2024

Technical Tip: The user laptop with docking station failed Dialup VPN connection to remote FortiGate

  • October 22, 2024
  • 0 replies
  • 417 views
Description

This article provides a resolution to a use case, where a user laptop with a docking station failed Dialup VPN to remote FortiGate.

Scope FortiSwitch in FortiLink mode.
Solution

Issue:

The user laptop with a docking station connected to a managed FortiSwitch failed to establish a Dialup VPN connection to another FortiGate at a remote site.

 

Topology:

UserLaptop---DockStation---FSW---LocalFortiGate---RemoteFortiGate---RemoteSite

 

Root Cause Analysis:

The user's Laptop not seeing all the reply packets while on LAN, therefore IKE retransmits and session times out eventually. The docking station NIC dropped reply packets.

 

Resolution:

Connect the ethernet cable directly to the Laptop NIC and Dialup VPN established.

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