Which VPN model is described as the most often used to provide secure remote access?

• A. gateway-to-gateway
• B. host-to-gateway
• C. host-to-host
• D. All of the above

Answer: (B)

The key idea is that secure remote access is typically provided by a host-to-gateway VPN setup. In this model, individual user devices (hosts) connect to a VPN gateway located at the edge of the internal network. The gateway authenticates the user, negotiates an encrypted tunnel, and grants the user access to internal resources as if they were on the local network. This approach scales well, centralizes policy enforcement, supports strong authentication, and works effectively behind firewalls and NAT, making it the most common way to enable secure remote access.

Gateway-to-gateway VPNs connect entire networks to each other and aren’t designed for individual remote users, while host-to-host VPNs would require direct, point-to-point connections between endpoints and are impractical for enterprise remote access. Hence, host-to-gateway is the best fit for providing secure remote access.