What is the function of a VPN concentrator?

The function of a VPN concentrator is specifically designed to manage multiple VPN connections effectively and to encapsulate data securely. A VPN concentrator enables the establishment, management, and termination of numerous concurrent VPN sessions. It creates a secure tunnel between external users and an internal network, allowing for encrypted data transmission, which is crucial for protecting sensitive information as it traverses the internet or other unsecured networks.

The ability to handle many connections simultaneously makes VPN concentrators essential for organizations that have remote employees or branch offices needing secure access to the corporate network. They also ensure that the data encapsulation maintains confidentiality, integrity, and authenticity throughout its transmission. This is vital in maintaining robust cybersecurity and complying with data protection regulations.

Other choices could involve functionalities that do not align with the primary role of a VPN concentrator; for example, providing internet access is not its focus, nor does it serve as a primary firewall. Similarly, while it could support secure connections that might include video conferencing services, facilitating video conferencing is not its primary function.