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Mikrotik Openvpn Config Generator Site

Mikrotik OpenVPN Config Generator: A Step-by-Step Guide

Introduction

OpenVPN is a popular open-source VPN solution that provides secure and encrypted connections between networks. Mikrotik routers are widely used in network infrastructure, and configuring OpenVPN on these devices can be a bit tricky. To simplify the process, we can create a config generator that automates the creation of OpenVPN configuration files for Mikrotik routers.

Prerequisites

  • Mikrotik router with RouterOS 6 or later
  • OpenVPN server software installed on the Mikrotik router
  • Basic knowledge of networking and VPN concepts

Config Generator Requirements

The config generator should take the following inputs:

  • VPN server IP address
  • VPN server port
  • VPN protocol (UDP or TCP)
  • VPN encryption algorithm
  • VPN authentication method (username/password or certificate)
  • VPN certificate and key files (if using certificate authentication)

Config Generator Script

Here is a Python script that generates a Mikrotik OpenVPN configuration file based on the input parameters:

import argparse
def generate_openvpn_config(args):
    config = ""
# Add OpenVPN server settings
    config += "# OpenVPN server settings\n"
    config += f"set openvpn server args.server_ip:args.server_port\n"
    config += f"set openvpn protocol args.protocol\n"
# Add encryption settings
    config += "\n# Encryption settings\n"
    config += f"set openvpn cipher args.cipher\n"
    config += f"set openvpn auth args.auth\n"
# Add authentication settings
    config += "\n# Authentication settings\n"
    if args.auth_method == "username":
        config += f"set openvpn auth-user-pass\n"
    elif args.auth_method == "certificate":
        config += f"set openvpn tls-server\n"
        config += f"set openvpn ca-cert args.ca_cert\n"
        config += f"set openvpn server-cert args.server_cert\n"
        config += f"set openvpn server-key args.server_key\n"
# Add network settings
    config += "\n# Network settings\n"
    config += f"set openvpn topology args.topology\n"
    config += f"set openvpn subnet args.subnet\n"
return config
if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Mikrotik OpenVPN config generator")
    parser.add_argument("--server_ip", help="VPN server IP address")
    parser.add_argument("--server_port", help="VPN server port", type=int)
    parser.add_argument("--protocol", help="VPN protocol (UDP or TCP)", choices=["udp", "tcp"])
    parser.add_argument("--cipher", help="Encryption algorithm", default="AES-256-CBC")
    parser.add_argument("--auth", help="Authentication algorithm", default="SHA256")
    parser.add_argument("--auth_method", help="Authentication method", choices=["username", "certificate"])
    parser.add_argument("--ca_cert", help="CA certificate file")
    parser.add_argument("--server_cert", help="Server certificate file")
    parser.add_argument("--server_key", help="Server key file")
    parser.add_argument("--topology", help="Network topology", choices=["subnet", "p2p"])
    parser.add_argument("--subnet", help="Subnet IP address")
args = parser.parse_args()
config = generate_openvpn_config(args)
    print(config)

Example Usage

To generate a Mikrotik OpenVPN configuration file, save the script to a file (e.g., openvpn_config_generator.py) and run it with the following command:

python openvpn_config_generator.py \
  --server_ip 10.0.0.1 \
  --server_port 1194 \
  --protocol udp \
  --cipher AES-256-CBC \
  --auth SHA256 \
  --auth_method certificate \
  --ca_cert ca.crt \
  --server_cert server.crt \
  --server_key server.key \
  --topology subnet \
  --subnet 10.0.0.0/24

This will generate a Mikrotik OpenVPN configuration file with the specified settings.

Mikrotik Configuration

To import the generated configuration file into your Mikrotik router, follow these steps:

  1. Log in to your Mikrotik router using Winbox or WebFig.
  2. Go to Files and upload the generated configuration file (e.g., openvpn_config.txt).
  3. Go to OpenVPN and click Import.
  4. Select the uploaded configuration file and click Import.

The OpenVPN configuration will be imported into your Mikrotik router, and you can now connect to the VPN using an OpenVPN client. mikrotik openvpn config generator

Conclusion

The Mikrotik OpenVPN config generator script simplifies the process of creating OpenVPN configuration files for Mikrotik routers. By providing a user-friendly interface to input configuration parameters, the script generates a complete OpenVPN configuration file that can be easily imported into a Mikrotik router. This write-up provides a step-by-step guide on using the config generator script to create a Mikrotik OpenVPN configuration file.

Generating an OpenVPN config (.ovpn) for MikroTik can be complex because MikroTik’s implementation of OpenVPN has specific requirements, such as requiring separate certificate files and often favoring TCP over UDP (though UDP is supported in newer RouterOS versions). 🛠️ Popular MikroTik Config Tools

ovpnconfig.com.br (GitHub): A web-based generator specifically built to format .ovpn files for MikroTik compatibility.

Script-Based Generators: Many administrators use Python or Bash scripts to automate the export of certificates and the creation of the config file.

Manual OVPN Creation: You can create a template in a text editor (like Notepad++) by combining your server IP, port, and inline certificates. 📝 Typical MikroTik OpenVPN Config Structure

MikroTik's OpenVPN client usually requires these parameters in the .ovpn file:

client dev tun proto tcp # MikroTik legacy preference, though UDP is now available remote YOUR_IP 1194 resolv-retry infinite nobind persist-key persist-tun remote-cert-tls server cipher AES-256-CBC # Must match MikroTik server settings auth SHA1 auth-user-pass # MikroTik usually requires username/password -----BEGIN CERTIFICATE----- [Your CA Certificate Here] -----END CERTIFICATE----- Use code with caution. Copied to clipboard 🚀 How to Use the Generated Config

Once you have your .ovpn file, follow these steps to import it into your MikroTik router:

Upload File: Drag and drop the .ovpn file into the Files menu of WinBox. Import via PPP: Go to PPP -> Interface. Click the Import .ovpn button. Select your uploaded file and enter your credentials. Finalize Setup:

Check Add Default Route if you want all traffic to go through the VPN.

Ensure your IP -> Firewall -> NAT rules allow the new tunnel traffic. ⚠️ Common Compatibility Issues

Certificate Errors: MikroTik is strict about certificate chains. Ensure the CA, Client Cert, and Key are correctly formatted. Mikrotik router with RouterOS 6 or later OpenVPN

Protocol Mismatch: Ensure both the server and client are set to the same protocol (TCP or UDP). Older RouterOS versions (v6.x) only supported TCP.

Cipher Selection: MikroTik only supports specific ciphers (e.g., AES-128-CBC, AES-256-CBC). If the generator uses an unsupported cipher like CHACHA20-POLY1305, the connection will fail. If you'd like, I can help you:

Write a custom MikroTik script to automate your server setup. Troubleshoot a "TLS Failed" or "Connection Refused" error.

Explain the difference between TCP vs UDP for MikroTik VPNs. Which part of the configuration are you currently stuck on? Import .ovpn and configure OpenVPN client on Mikrotik LTE

Finding a reliable MikroTik OpenVPN config generator usually means either using a community-driven script or an online tool that creates the necessary .ovpn file or RouterOS commands. Because MikroTik has specific certificate and routing requirements, most "generators" are actually templates or automated scripts rather than one-click web buttons. Popular Configuration Generator Tools

ovpnconfig.com.br: A popular community-driven MikroTik OpenVPN Config Generator hosted on GitHub that helps automate the creation of configuration files.

OpenVPN-Config-Generator (Drewsif): A general-purpose config generator on GitHub that includes templates for various setups, which can be adapted for MikroTik.

SparkLabs OpenVPN Generator: A tool by SparkLabs that generates configuration files compatible with most OpenVPN setups, including MikroTik RouterOS. Manual Generation Steps (The "Script" Method)

If you prefer to "generate" your own configuration via the terminal, you can use these steps based on standard MikroTik Documentation and community guides:

Configuring OpenVPN on MikroTik can be notoriously tedious because RouterOS does not natively export the

configuration files required by most clients. To bridge this gap, several automated tools and guides have been developed to generate these configurations. Top Resource: Martin Konicek's OpenVPN Config Generator

One of the most detailed and modern blog posts on this topic is by Martin Konicek

OpenVPN Config Generator: Simplify Your VPN Setup with Static IPs and Automated Key Management What it is RouterOS Script: Contains certificate creation

: A YAML-based tool that automates the generation of certificates (CA, server, and client) and configuration files. Key Features Static IP Management

: Automatically assigns static IPs to every device in your VPN LAN, allowing devices to communicate with each other easily. Automated PKI

: It handles the entire certificate authority (CA) setup, so you don't have to manually run complex Multi-Platform

: Supports both UDP and TCP modes, which is critical since MikroTik has historically had varied support for these protocols. MikroTik community forum Other Notable Guides & Tools Rafał Rusin’s Bash Generator : For those who prefer script-based automation, Rafał Rusin's OpenVPN Config Generator in Bash

provides a script that generates ready-to-use configurations for both servers and clients with a single command. SparkLabs' openvpn-generate

: A simple CLI tool available for macOS, Windows, and Linux that specializes in generating the complex configuration and certificate files that usually trip up users. Major Hayden's Manual Guide : If you want to understand the "under the hood" logic, Major Hayden’s MikroTik OpenVPN HOWTO

is a classic resource that walks through the manual setup step-by-step using the Winbox GUI and CLI. Key Configuration Tips for MikroTik

3. The "RouterOS Script Generator" by InetBridge

  • URL: (Search: "inetbridge openvpn generator")
  • Best for: Beginners.
  • Pros: Feature-rich wizard. Explains what each command does. Includes firewall rules to prevent DNS leaks.
  • Cons: Some advanced ciphers (like AES-256-GCM) require manual selection.

Warning: Avoid random "freetools" websites that ask for your router's public IP but don't use HTTPS. Always prefer open-source or well-reviewed generators.

Why Is Manual Configuration a Pain?

MikroTik’s RouterOS is incredibly powerful, but its interface isn’t exactly "user-friendly" for VPN beginners. Setting up an OpenVPN server manually typically requires:

  1. Certificate Management: Creating a Root CA and a Server certificate, signing them, and exporting them.
  2. IP Pooling: Defining the range of IP addresses remote clients will use.
  3. Profiles and Secrets: Configuring PPP profiles and setting up user credentials.
  4. Exporting Configs: Exporting the .ovpn file so you can actually use it on a laptop or phone.

If you miss one checkbox or mistype a subnet, the connection fails silently. A config generator streamlines this entire workflow into a few copy-paste commands.

Example generated mikrotik_server_commands.txt (ready to paste)

  • Upload ca.crt, server.crt, server.key (and ta.key if used) to Files.
  • Example commands:
/ip pool add name=ovpn-pool ranges=10.8.0.2-10.8.0.254
/ppp profile add name=ovpn-profile local-address=10.8.0.1 remote-address=ovpn-pool dns-server=8.8.8.8
/ppp secret add name=vpnuser password=StrongPass123 profile=ovpn-profile
/interface ovpn-server server set enabled=yes certificate=server.crt require-client-certificate=yes \
auth=sha1 cipher=aes256 default-profile=ovpn-profile port=1194
/ip firewall nat add chain=srcnat src-address=10.8.0.0/24 out-interface=<WAN> action=masquerade
/ip firewall filter add chain=input protocol=tcp dst-port=1194 action=accept

Replace with your WAN interface name.

2. The "Simple OVPN Config Creator" (Community Script)

  • URL: (Found on GitHub: "mikrotik-ovpn-generator")
  • Best for: Hobbyists and homelabs.
  • Pros: Runs locally via Python – no data leaves your machine. Great for security-conscious users. Generates both server and client configs in one go.
  • Cons: Requires Python installed; not a "clicky" web tool.

What Does it Generate?

The output is usually a two-part answer:

  • RouterOS Script: Contains certificate creation, interface setup, pool config, and firewall rules.
  • Client OVPN File: Contains the remote address, port, cipher settings, and inline certificate keys (if using cert auth).