ShrewSoft VPN Client
FreeShrewSoft VPN Client is a robust, open-source VPN solution designed for establishing secure connections to corporate networks. It supports various VPN protocols, including IPsec, making it compatible with a wide range of VPN gateways. Though officially discontinued, its lightweight nature and configurable options continue to appeal to users seeking a free and powerful VPN client for various operating systems, particularly Linux and FreeBSD.