OpenVPN is a powerful and flexible open-source VPN protocol supported by MikroTik devices. Its key advantages are the highest level of security (thanks to the use of certificates and robust encryption, e.g., AES-256) and cross-platform compatibility (works on virtually any device via client applications). However, it is important to note that configuring OpenVPN on MikroTik requires more effort compared to PPTP or L2TP due to the need for certificate and configuration file management, and it may create a higher load on the router's CPU. We recommend this protocol for tasks where confidentiality and bypassing complex blocks are critical (thanks to the ability to set up connections using port 443, which masks traffic as HTTPS).