OpenConnect SSL VPN
Free open-source SSL VPN client supporting multiple protocols including AnyConnect
What is OpenConnect?
OpenConnect is a free open-source SSL VPN client that provides secure remote access to private networks. It’s designed to establish secure encrypted connections across different networks while maintaining high performance.
The client stands out for its compatibility with Cisco AnyConnect VPN servers while remaining completely open-source. This makes it an ideal choice for organizations and users seeking flexible secure remote access solutions.
Core Functionality & Advantages
Protocol Compatibility
Supports Cisco AnyConnect SSL VPN, Juniper/Netscreen SSL VPN, and Pulse Connect Secure
Multi-OS Support
Runs seamlessly across all major operating systems and architectures
Enterprise-Grade Protection
Implements strong encryption standards and certificate-based authentication
Open Source Advantage
Completely free and open-source with transparent code development
Download OpenConnect
Available for all major platforms – completely free and open-source
Windows
Compatible with Windows 7 and newer
Linux Systems
Ubuntu/Debian .deb packages
Apple macOS
macOS 10.15 and later
Windows Setup Instructions
Download the Installer
Download the latest OpenConnect Windows installer from the official repository or trusted source. The installer is typically available as a standard .exe file for easy installation.
Run Installation
Launch the downloaded installer with administrator privileges for proper system access. The installation process typically takes 2-3 minutes on modern Windows systems.
Configure VPN Connection
Configure the client by entering your organization’s VPN server address and credentials. Specify authentication method, certificates, and any custom connection parameters required.
Connect to VPN
Select your configured connection profile and click connect to establish the VPN tunnel. Confirm successful connection through status indicators and test network accessibility.
Problem Resolution Guide
Connectivity Problems
Check firewall settings and ensure required ports are open for VPN traffic. Confirm certificate validity and authentication credentials with your network administrator.
Certificate Errors
Import required root certificates and intermediate certificate authorities. Verify certificate chain completeness and proper installation in certificate store.
Note: Enterprise users should contact their network administrators for customized setup instructions. Some networks require additional security software or openconnect specific configuration tweaks.