Strongswan is a complete IPSec implementation for Linux, Android, Maemo, FreeBSD, and Mac OS x systems. It supports the interoperability of most IPSec-based VPN products through a IKEV2 or IKEV1 key exchange protocol. The focus is on strong authentication mechanisms that use smart cards to use a standardized pkcs#11 interface for using a X.509 public key certificate and an optional secure storage private key.
Strongswan 4.6.3 This version adds an extended Eap-radius interface that allows one to enforce session timeouts using RFC4478 for repeated verification, and calls for RADIUS dynamic authorization extension (RFC5176) behavior properties. Messages that currently support disconnected requests and COAA contain a session timeout. The TNC-PDP plug-in implements the RADIUS server interface, allowing the strongswanhttp://www.aliyun.com/zixun/aggregation/12039.html "> multinational server as a decision point."
Software Information: http://www.strongswan.org/
Download Address: http://download.strongswan.org/strongswan-4.6.3.tar.gz