SSL VPN failed on macOS and Linux OS

Options
ANVAR_ANVAR
ANVAR_ANVAR Posts: 2 image  Freshman Member
in Security

Device: Zyxel USG FLEX 500
Firmware Version: (please insert your firmware version here)
Service: SSL VPN

Issue:
SSL VPN is not working on macOS and Linux clients.
The connection works normally on Windows using Zyxel SecuExtender, but macOS and Linux clients fail to establish the SSL VPN tunnel.

Error messages:

  • macOS: “Unable to establish SSL connection”
  • Linux: tunnel interface is not created or shows “TLS connection failed”

All Replies

  • Zyxel_Tina
    Zyxel_Tina Posts: 399 image  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 50 Answers First Comment

    Hi @ANVAR_ANVAR,

    Welcome to the Zyxel Community!

    Regarding your observation, the USG FLEX 500 does not provide an SSL VPN client for Linux, which is why the SSL VPN tunnel cannot be established on Linux platforms.

    For macOS, could you please confirm which VPN client you are using, the built-in macOS VPN or Zyxel SecuExtender?

    Additionally, since the connection attempt is failing, could you please help check the device’s Event Log at the time the SSL VPN connection fails? Kindly share the relevant log entries or screenshots so we can further analyze the issue and assist you more effectively. Thank you for your cooperation!

    Zyxel Tina

  • Peppino
    Peppino Posts: 180 image  Master Member
    First Comment Friend Collector Seventh Anniversary
    edited November 20

    Hi ANVAR_ANVAR,

    I just posted a guide on how to configure an Ubuntu for IKEv2. You may consider checking it out.

Categories

Security Help Center

EnglishTiếng ViệtРусскийไทย中文（台灣）