Windows XP system virtual private network VPN network reveals

VPN (Virtual Private Network), translated into Chinese as a virtual private network, using VPN technology
, users can remotely access an internal network (such as a corporate LAN) through the Internet, through authentication After that, even if the user is actually at the other end of the globe, he can access the network as if he were accessing local network resources. At the same time, because it uses a special encryption technology
, it can ensure that the data in the internal network is not stolen by other users on the Internet.

VPN uses a technology called tunneling to securely transfer data over the Internet to remote access servers on your workplace network. When using a VPN, the public Internet is used instead of making long-distance telephone calls because of a secure connection to a private network, resulting in significant cost savings. In addition, because the VPN encrypts the Internet connection, it is also very secure. The new authentication and encryption protocols are enforced by remote access servers. Sensitive data transmitted over the Internet is private to the public, while legitimate users can securely access these confidential data via VPN.

Ways to Create a VPN Connection

There are two ways to create a VPN connection: dial-up with an Internet Service Provider (ISP), or connect directly to the Internet.

If you are dialing into an ISP, your ISP will then call the remote access server of the private network to establish a PPTP or L2TP tunnel. Once the authentication is complete, you can access the private network.

If you are connected to the Internet, LAN, cable modem or digital subscriber line (DSL), you can tunnel through the Internet and connect directly to the remote access server. Once authenticated, you can access it. Company network.

How to establish a virtual private network (VPN) connection

First click the "Start" menu, click the Control Panel, click "Network Connection" to open the network connection; under the network task, Click "New Connection Wizard" to create a new connection, click Next, click "Connect to my workplace network" in the new window, and then click Next (as shown below); pop up a new window Select "Virtual Private Network Connection", click Next, follow the instructions in the wizard, enter the company name, select the initial connection to the Internet or other public network automatically before establishing the VPN, and then enter the VPN server. The host name or IP address, choose a shortcut to establish the connection on the desktop, and finally click "Finish".

You can also create multiple VPN connections by copying the VPN connection in the Network Connections folder, then you can rename the connection and modify the connection settings so that you can easily create different connections. Connect to provide multiple hosts, security options, and more.
Note: If you are setting up a VPN, you should disable the Winsock Proxy client and you will not be able to create a VPN as long as you have an active Winsock Proxy client. Because the Winsock Proxy client immediately redirects the data to the configured proxy server before the data is processed in the manner required by the VPN, the VPN cannot be created.
If you want to modify the VPN connection, you can select this VPN connection in the "Network Connections" folder, then right click the mouse to pop up the VPN connection properties window (as shown below), click General, Options, Security, Network, advanced, and other tabs where modifications are made.