Chapter 10. Designing and Building SSL Remote Access VPNs (WebVPN)
Providing remote access VPN connectivity is a relatively new application for the Secure Sockets Layer (SSL). SSL was designed to secure TCP-based protocols and applications such as HTTP (HTTPS), FTP (FTPS), POP3 (POP3S), and SMTP (SMTPS).
SSL is built in to most, if not all, web browsers, and this fact allows the deployment of SSL remote access VPNs without the requirement to install specific client software on remote user workstations or devices—only a web browser is needed for basic (clientless) SSL remote access VPN connectivity.
Although clientless SSL remote access VPNs provide a basic level of access, more comprehensive access can be provided through the use of the Cisco SSL ...
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