Cisco Cisco IOS Software Release 12.4(6)T

The SSL VPN feature (also known as WebVPN) provides support, in Cisco IOS software, for remote 
user access to enterprise networks from anywhere on the Internet. Remote access is provided through a 
Secure Socket Layer- (SSL-) enabled SSL VPN gateway. The SSL VPN gateway allows remote users to 
establish a secure Virtual Private Network (VPN) tunnel using a web browser. This feature provides a 
comprehensive solution that allows easy access to a broad range of web resources and web-enabled 
applications using native HTTP over SSL (HTTPS) browser support. SSL VPN delivers three modes of 
SSL VPN access: clientless, thin-client, and full-tunnel client support.

This document is primarily for system administrators. If you are a remote user, see the document SSL 
VPN Remote User Guide.

The Cisco AnyConnect VPN Client is introduced in Cisco IOS Release 12.4(15)T. This feature is the 
next-generation SSL VPN Client. If you are using Cisco software before Cisco IOS Release 12.4(15)T, 
you should be using SSL VPN Client and see GUI for the SSL VPN Client when you are web browsing. 
However, if you are using Cisco software Release 12.4(15)T or later, you should be using 
Cisco AnyConnect VPN Client and see GUI for Cisco AnyConnect VPN Client when you are web 
browsing.

For “What’s New” information about SSL VPN features by release, see the section “

Finding Feature 

Information in This Module

,” which follows.

Your software release may not support all the features documented in this module. For the latest feature 
information and caveats, see the release notes for your platform and software release. To find information 
about the features documented in this module, and to see a list of the releases in which each feature is 
supported, see the 

.

Use Cisco Feature Navigator to find information about platform support and Cisco IOS, Catalyst OS, 
and Cisco IOS XE software image support. To access Cisco Feature Navigator, go to 

. An account on Cisco.com is not required.