Verification of Additional Fields in Peer Certificates during IKE Negotiation in Windows Vista for L2TP/IPSec Tunnel Connectionshttp://blogs.technet.com/b/rrasblog/archive/2007/03/08/verification-of-additional-fields-in-peer-certificates-during-ike-negotiation-in-windows-vista-for-l2tp-ipsec-tunnel-connections.aspxIn Windows Vista IKE Layer authentication for L2TP/IPSec tunnel connections using machine certificates has been strengthened by verifying additional fields in the certificate presented by the peer during the IKE negotiation apart from validating thaten-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)