VPN Technologies have been around for quite some time now. Broadly , we may divide into 2 key VPN technologies namely Site to Site VPN and Remote Access VPN.
While Site to Site VPN uses a security method called IPsec to build an encrypted tunnel from one Customer network (generally HQ or DC) to the customer’s remote site between whole or part of a LAN on both sides , Remote access VPN connect individual users to Private Networks (usually HQ or DC).
Site to Site VPN has benefit that each client machine does not require to perform encryption/decryption or install VPN Client software on it. On the other hand, Remote Access VPN user machine needs to perform encryption/decryption and may or may not be required to be setup VPN Client software.
Below table details on difference between Site to Site VPN and Remote Access VPN –