Which protocol is often used for creating virtual private networks (VPNs) in MikroTik routers?

PPTP, or Point-to-Point Tunneling Protocol, is commonly utilized for establishing virtual private networks (VPNs) on MikroTik routers. This protocol enables secure communication over public networks by encapsulating data packets within a secure tunnel. It is particularly favored for its relative ease of configuration and compatibility with various operating systems, making it accessible for remote access configurations.

PPTP supports features like authentication mechanisms, which help ensure that only authorized users can establish a connection to the VPN. This is crucial for maintaining the security and integrity of sensitive data transmitted over potentially insecure networks. Overall, its capability to facilitate secure data transmission in a user-friendly manner is why it is a popular choice for VPN implementations on MikroTik devices.

The other protocols listed—HTTP, SMTP, and FTP—serve entirely different purposes such as web browsing, email transmission, and file transfer, respectively, and do not provide the tunneling functionality required for creating VPNs.