A large array of customization options for perfectly tuning your newly created Cisco-based secure tunnelĪlthough its user interface is simple and intuitive, Cisco VPN Client comes with numerous features. You can do this by registering your certificate via the PKI framework and get approval from the CA. If you're a system administrator who has already set up the client using digital certificates, you can obtain a certificate by enrolling with a Certificate Authority (CA). 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.