libreswan: Libreswan VPN software libreswan: Libreswan is a free software implementation of the most widely supported libreswan: and standardized VPN protocol using IPsec and the Internet Key Exchange libreswan: (IKE). These standards are produced and maintained by the Internet libreswan: Engineering Task Force (IETF). libreswan: libreswan: Package maintainer: Felipe Sanchez libreswan: