F5 BIG-IP Local Traffic Manager (LTM) vs OpenVPN Access Server comparison

F5 BIG-IP LTM optimizes the speed and reliability of your apps via both network and application layers. Using real-time protocol and traffic management decisions based on app and server and connection management conditions, and TCP and content offloading, BIG-IP LTM dramatically improves application and infrastructure responsiveness. BIG-IP LTM's architecture includes protocol awareness to control traffic for the most important applications. BIG-IP LTM tracks the dynamic performance levels of servers and delivers SSL performance and visibility for inbound and outbound traffic, to protect the user experience by encrypting everything from the client to the server.

BIG-IP LTM provides enterprise-class Application Delivery Controller (ADC). You get granular layer 7 control, SSL offloading and acceleration capabilities, and advanced scaling technologies that deliver performance and reliability on-demand. The highly optimized TCP/IP stack combines TCP/IP techniques and improvements in the latest RFCs with extensions to minimize the effect of congestion and packet loss and recovery. Independent testing tools and customer experiences show LTM's TCP stack delivers up to a 2x performance gain for users and a 4x increase in bandwidth efficiency.

OpenVPN Access Server is a comprehensive VPN solution that enables secure remote access and site-to-site connectivity. It uses the open-source OpenVPN protocol with added encryption and authentication for robust security. The web-based admin interface simplifies setup and centralized management of users, devices, and access controls.

OpenVPN Access Server's ease of setup, comprehensive security features, and professional support make it a viable option for businesses looking to facilitate secure remote access and inter-office connectivity. However, potential users should be mindful of the technical requirements for setup and the possibility of network performance issues in specific scenarios.

Based on over 30 independent peer reviews, OpenVPN garners consistently positive feedback for its stability, security, and free open-source licensing. The most common complaints relate to initial setup complexity and occasional connection drops. Despite these drawbacks, most reviewers highly recommend OpenVPN Access Server due to its robust encryption standards, flexible access options, and scalability across organization sizes.

Versatile Installation and Client Support:

• OpenVPN Access Server can be installed on various Linux OS platforms, offering flexibility to adapt to different network environments. This includes popular distributions like Ubuntu, Debian, CentOS, and Red Hat Enterprise Linux.
• OpenVPN Access Server supports a comprehensive range of VPN clients, ensuring broad compatibility and user accessibility. This includes clients for Microsoft Windows, macOS, iOS, Android, and Linux, enabling users to connect securely from various devices.

User Authentication and Security:

• OpenVPN Access Server incorporates a built-in user authentication system, which can be managed via a web-based interface. This allows administrators to manage user accounts, passwords, and access permissions easily.
• For enhanced security, OpenVPN Access Server supports integration with external authentication systems like PAM, LDAP, RADIUS, and SAML. This allows you to leverage your existing authentication infrastructure for VPN access.
• The solution provides the flexibility to implement custom Python programming for advanced authentication methods, catering to specific security requirements.
• OpenVPN Access Server utilizes the OpenVPN protocol, renowned for its robust encryption and security. VPN tunnels are secured with TLS authentication, credentials, certificates, and optional MAC address lock, ensuring a high level of protection for data transmission.

Flexible Access Control and Tunneling Options:

• OpenVPN Access Server provides comprehensive access control rules, allowing administrators to specify user or group access to IP addresses and subnets. This enables granular control over network access and resource utilization.
• OpenVPN Access Server supports both full-tunnel and split-tunnel redirection. Full-tunnel mode routes all VPN client internet traffic through the VPN tunnel, while split-tunnel mode allows selective routing of specific traffic.

OpenVPN offers professional support for Access Server, with a global team of experts available through an online ticket system. This ensures that users have timely access to assistance when needed.