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How to set up OpenVPN server via AstroRelay?

This tutorial introduces the steps to set up an OpenVPN server via AstroRelay on a GL.iNet router, which is ideal for users who need remote access to their home or office local services but do not have a public IP address from their ISP.

AstroRelay provides a secure reverse proxy tunnel, through which you can securely access resources behind NAT and firewalls.

  1. Follow this guide to set up an OpenVPN server on your GL.iNet router, even if you don't have a public IP address.

    set up openvpnd server

    Then export the OpenVPN configuration. Here is an example config file.

    openvpn config

  2. (Optional) If you need to access the VPN server's LAN remotely, enable Allow Remote Access LAN. Otherwise, skip this step.

    For firmware v4.7 and earlier
    1. In the left sidebar, click VPN > VPN Dashboard.
    2. Click the Options icon.
    3. Toggle the switch to on for Remote Access LAN.

    4. Click Apply.

      remote access lan

    For firmware v4.8 and later
    1. In the left sidebar, click VPN > OpenVPN Server.
    2. Click Options in the upper right.
    3. Toggle the switch to on for Allow Remote Access the LAN Subnet.

    4. Click Apply.

      remote access lan

  3. Sign up an AstroRelay account and follow this tutorial to complete first-time setup.

    When adding a new domain, choose the server closest to your router.

    astrorelay add a new domain

    When adding a new link, enter your router's LAN IP address into the Destination Host IP field, and enter 1194 in the Destination Port field.

    link for openvpn server

    You will then get a link, such as testforx3000.arlab1.cc:37202. Click it to copy the link.

    astrorelay link

  4. Open the OpenVPN configuration file, and replace the value after Remote with the link you got in the previous step. In the example below, "42.200.00.00 1194" is replaced with the link "testforx3000.arlab1.cc:37202". Then replace the colon ":" with a space and apply the changes.

    openvpn config

    replace link

  5. Install the OpenVPN Connect app on the device you want to use as an OpenVPN client. Then upload the modified configuration file to the app and start the conneciton. Alternatively, upload it to another GL.iNet router so as to set it up as an OpenVPN client.

    Once connected, you will be able to access your home or office local services remotely.

    openvpn up

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