In IPsec implementations, which method enables secure communication between entire networks over the internet without requiring individual client software on each device?
SSL VPN
GRE Tunnel
Remote-access VPN
Site-to-site VPN
A site-to-site VPN allows secure communication between entire networks over the internet. It connects multiple devices on one network to devices on another network, without requiring individual VPN clients on each device. Remote-access VPNs, on the other hand, allow individual users to connect to a network using VPN client software. SSL VPNs (Secure Sockets Layer Virtual Private Networks) provide secure access typically through a web browser, and GRE Tunnels (Generic Routing Encapsulation) are a tunneling protocol that can encapsulate a variety of network layer protocols but do not provide encryption on their own.
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