ssltunnel is a client/server software to establish PPP links over SSL/TLS sessions. Client and server are mutually authenticated using X509 certificates, PPP packets are encrypted/decrypted realtime on each side. The client has the ability to initiate the connection through an HTTP/HTTPS relay, even if an authentification is needed. This is the client part. WWW: http://www.hsc.fr/ressources/outils/ssltunnel/