VPN Why do industrial routers need to set up the VPN function

Industrial routers are industrial versions added on the basis of ordinary routers, and industrial VPN routers are VPN functions added on the basis of industrial routers.

VPN generally refers to a virtual private network, simply speaking, it is a private network established on a public network for encrypted communication. The function of VPN is to encrypt data packets while realizing destination address translation and remote access. Therefore, industrial VPN routers are very suitable for projects that require high data transmission security.

Why do industrial routers need to set up the VPN function? In other words, what are the benefits of the VPN function?

1. The VPN function allows people to stay in complex public networks without worrying about security issues. Of course, this is also the basic function of industrial VPN routers;

2. It can solve the problem of using multiple devices to connect to the Internet at the same time and need to use the VPN function at any time. There is no longer any need for cumbersome operations after logging in and connecting to each device, and you can choose to use or not apply the VPN function as long as you switch to a network, achieving the effect of instant use;

3. Multiple connected devices are connected to the network, some need to use the local network, and some use the VPN network, so that they can be used in a staggered manner;

4. The industrial VPN router can use one account to connect multiple terminals, so there is no need to worry about the VPN account limiting the number of connected terminals;

5. Most of the industrial routers on the market already support the PPTP connection method in VPN, and the fool-like operation settings are no longer the patents of experts.

The VPN function is very popular in industrial, commercial, and civil purposes. It can make network transmission safer, more professional, and more free. Classification of industrial VPN routers Common classifications of industrial VPN routers include PPTP, L2TP, and IPSEC. The most common one is the PPTP protocol. As mentioned earlier, most industrial routers on the market have the PPTP security protocol, that is, the Point-to-Point Tunneling Protocol. It can enable remote users to access the enterprise network safely by dialing into the ISP, directly connecting to the Internet or other networks. L2TP is an industry-standard VPN network transmission tunnel protocol. Its functions are roughly similar to PPTP protocol. For example, it can also encrypt network data streams.

The difference is that PPTP uses a single tunnel, while L2TP uses multiple tunnels; L2TP provides header compression and tunnel authentication, while PPTP does not support it. The IPSEC security protocol provides active protection and prevents attacks through end-to-end security, and is the long-term direction of secure networking. In communication, only the sender and receiver are the only computers that understand IPSEC protection. The security service of IPSec needs to support the shared key to complete authentication and confidentiality, and the mode of manually entering the key is required. How to set up industrial VPN routers Different brands of industrial VPN routers have different setting methods, because the setting methods and built-in webpage settings are all made by the manufacturers. But the function is the same, and the setting method is also similar.

Regarding the VPN establishment process of the 4G industrial wireless router, please refer to How to Create a 4G Industrial Router VPN to understand the specific configuration process.