Fortinet Document Library

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Table of Contents

Administration Guide

VPN options

To configure VPN options:
  1. Go to Settings and expand the VPN Options section.
  2. Configure the following options:

    Option

    Description

    Enable VPN before logon

    Enable selecting a VPN connection before logging into the system.

    Preferred DTLS Tunnel

    If enabled, FortiClient uses DTLS if it is enabled on the FortiGate and tunnel establishment is successful. If not enabled on the FortiGate or tunnel establishment does not succeed, TLS is used. DTLS tunnel uses UDP instead of TCP and can increase throughput over VPN.

    When disabled, FortiClient uses TLS, even if DTLS is enabled on FortiGate.

    Do not Warn Invalid Server Certificate

    Select if you do not want to be warned if the server presents an invalid certificate.

  3. Click Save.

VPN options

To configure VPN options:
  1. Go to Settings and expand the VPN Options section.
  2. Configure the following options:

    Option

    Description

    Enable VPN before logon

    Enable selecting a VPN connection before logging into the system.

    Preferred DTLS Tunnel

    If enabled, FortiClient uses DTLS if it is enabled on the FortiGate and tunnel establishment is successful. If not enabled on the FortiGate or tunnel establishment does not succeed, TLS is used. DTLS tunnel uses UDP instead of TCP and can increase throughput over VPN.

    When disabled, FortiClient uses TLS, even if DTLS is enabled on FortiGate.

    Do not Warn Invalid Server Certificate

    Select if you do not want to be warned if the server presents an invalid certificate.

  3. Click Save.