Moreover, the user authentication can also be established in several ways: using Remote Authentication Dial-In User Service (RADIUS), the RSA SecurID / SoftID, via the VPN device's database, or through the NT Domain (for Windows NT). The tunneling protocols used by the client are highly secure: Internet Protocol Security (IPSec) and Internet Key Exchange (IKE).
In other words, the Cisco VPN Client employs a Cisco VPN device (VPN 3000 Series Concentrators, Cisco IOS devices with Easy VPN server support and Cisco PIX Firewall Series) in order to create a tunnel (secure connection) between your computer and a VPN.
Use a Cisco device to create a secure tunnel to a VPN Cisco VPN Client is a straightforward software solution that enables you to establish connections between your computer and a Virtual Private Network (VPN) using a Cisco VPN device.
