Mikrotik Openvpn Config Generator

Before discussing the generator, we must understand the "why." OpenVPN is an open-source VPN protocol that uses SSL/TLS for key exchange. It is renowned for:

MikroTik supports OpenVPN in two modes:

The problem? MikroTik’s OpenVPN implementation has quirks. It does not support the comp-lzo directive used by older OpenVPN servers. It requires specific cipher negotiations. One misplaced setting, and you get infamous errors like "Options error: Unrecognized option or missing parameter(s)". This is precisely where a MikroTik OpenVPN config generator becomes indispensable. mikrotik openvpn config generator

For administrators who want to build their own internal MikroTik OpenVPN config generator (using Python, Bash, or PHP), here is a template logic:

def generate_mikrotik_openvpn(config):
    script = []
    # 1. Certificate Section
    script.append(f"/certificate add name=ca-config['name'] certificate=\"config['ca_cert']\"")
    script.append(f"/certificate add name=server-config['name'] certificate=\"config['server_cert']\" key=\"config['server_key']\"")
# 2. Pool and Profile
script.append(f"/ip pool add name=pool-config['name'] ranges=config['pool_range']")
script.append(f"/interface ovpn-server server set enabled=yes port=config['port'] mode=config['protocol'] cipher=config['cipher'] auth=config['auth'] default-profile=profile-config['name']")
# 3. Firewall
script.append(f"/ip firewall filter add chain=input protocol=config['protocol'] dst-port=config['port'] action=accept comment=\"OpenVPN config['name']\"")
return "\n".join(script)

This script can be extended to generate client .ovpn files dynamically from a database of users. Before discussing the generator, we must understand the "why

If you need a single config immediately, use this manual process:

  • On the Client PC:

  • /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
    

    Adjust auth/cipher to match client configuration.