SoftEther VPN ("SoftEther" means "Software Ethernet") is a powerful, multi-OS and easy-to-use multi-protocol VPN software. It supports SSL-VPN (HTTPS), as well as OpenVPN, IPsec, L2TP, MS-SSTP, L2TPv3 and EtherIP tunneling protocols and has a clone function to support OpenVPN clients. WWW: https://www.softether.org