ASA - Clientless VPN

Using a Cisco ASA, it is possible to configure what is known as a clientless VPN. A clientless VPN is a technology that allows remote users to securely access network resources and applications without the need to install dedicated VPN client software on their devices. It typically operates through a web browser, leveraging web-based technologies to establish secure connections.

To use such a VPN, a user would typically brows to the IP address of the ASA and obtain web access through a portal. Thus, all interactions between the web browser and the Internet occur through a VPN tunnel.

Note in a clientless VPN tunnel, only the interactions that take place via the web browser are protected. All other activities on the device that use the network may not be protected.