虚拟专用网：
它代表虚拟专用网络。它是一种采用加密、认证和完整性保护的机制，使我们可以将公共网络用作私有网络。它通过公共网络模拟专用网络。它允许用户远程访问专用网络。
代理人：
实际上代理服务器使用匿名网络ID而不是客户端的实际IP地址(意味着它隐藏了客户端的IP地址)，因此客户端的实际IP地址不能被泄露。
现在，我们看到它们之间的区别：
| S.NO | VPN | Proxy |
|---|---|---|
| 1. | VPN ensures encryption, authentication and integrity protection. | Proxy does not ensure or provide any security. |
| 2. | Protocols used in VPN are PTTP (Point to point tunneling protocol), L2TP (Layer 2 tunneling protocol) etc. | Protocols used in Proxy are FTP (File transfer protocol), SMTP (Simple mail transfer protocol) HTTP (Hyper Text Transfer Protocol) etc. |
| 3. | VPN works on firewall. | Proxy works on browsers. |
| 4. | VPN stands for Virtual Private Network. It simulate a private network over public network. | It does not simulate a private network over public network. |
| 5. | VPN does not hide the IP address of client. | Proxy uses the anonymous network ID instead of actual IP address of client (means it hides the IP address of client). |
| 6. | VPN creates tunnel between end users. | But proxy does not create tunnel between end users. |
| 7. | VPN offers high amount of security. | Proxy does not offer any type of security. |