The SonicWALL SSL VPN 4000 is recommended for medium sized organisations and provides remote access for up to 200 concurrent users in the form of an affordable, simple and secure clientless remote access and support solution that requires no pre-installed client software.

Utilising only a standard Web browser, users can easily and securely access e-mail, files, intranets, remote desktops (includes both full desktop and individual application access) and other resources on the corporate LAN from any location. SonicWALL Virtual Assist, a licensable add-on module for the SSL-VPN 2000 and 4000 appliances, enables a technician to assume control of a customer’s PC or laptop in order to provide assistance.

With no need for a pre-installed or "fat" client, administrators are freed from the tasks of deploying, configuring and updating software, thus reducing maintenance and support costs. SonicWALL SSL VPN Series solutions integrate seamlessly into virtually any network topology to deliver powerful, scalable and affordable remote access to corporate resources.

Key Features and Benefits:

• Seamless integration behind virtually any firewall enables organizations to leverage the existing network infrastructure without the need to purchase additional hardware.
• Clientless connectivity removes the need for a pre-installed or "fat" VPN client, thus freeing administrators from the tedious and costly task of installing and updating a client on users' PCs.
• Offering unrestricted concurrent user tunnels instead of per-tunnel licensing significantly reduces the costs associated with deploying a scalable secure remote access solution.
• NetExtender technology provides enhanced capabilities such as access to additional resources, services and applications on the corporate network.
• Granular policy configuration controls enable network administrators to create policies that "lock down" a user to specific applications/resources and prevent remote users from viewing or using restricted network resources.
• Customizable Web interface provides a personalized portal experience and displays only those resources that are available to the user based on company policy.
• Tokenless two-factor authentication provides enhanced protection against key loggers. This added level of security is achieved by combining a unique one-time password that is generated by the SSL VPN appliance and sent to a remote user's mobile device or e-mail address using the user's network user name and password.
• Enhanced layered security is enabled when deployed alongside a SonicWALL Internet security appliance which utilizes powerful deep packet inspection technology to scan traffic for malicious threats such as viruses, worms, Trojans and spyware.
• Context-sensitive help is provided throughout the Web-based administrative interface and end user portal, increasing management flexibility and ease-of-use.
• Clientless remote support using SonicWALL Virtual Assist enables technicians to provide secure on-demand assistance to customers while leveraging the existing network and authentication infrastructures.

The following features are available with firmware v3.0 on the SSL-VPN 4000

• Technician Anywhere support
• Customer hotkeys 
• Technician shortcuts
• Optional email notification to Technician 
• Improved logging and reporting
• NetExtender Enhancements
• 64-bit XP and 64-bit Vista support for Windows NetExtender client
• OpenSUSE Linux NetExtender support
• Setup and usability improvements for Mac NetExtender clients
• Admin Portal Enhancements
• Redesigned graphical user interface
• Self-refreshing status pages
• Mouseover tooltips
• Reverse Proxy Enhancements
• Per HTTP(S) bookmark SSO support
• Miscellaneous Enhancements
• One Time Password enhancements
• Scheduling and SMTP authentication for sending logs
• Port-based policies
• Remote Desktop Protocol client enhancements