What is a VPN? Advantages of industrial VPN routers

#VPN #Router #Industrialrouter #IIoT #M2M #IoT

Industrial routers add industrial application functions and strengthen work materials on the basis of ordinary routers, while industrial VPN routers add VPN functions on the basis of industrial routers. So, why do industrial routers need to set up the VPN function? What are the advantages of adding a VPN function? This article will take you to understand in detail.

▍What is a VPN

VPN is referred to virtual private network. The VPN function is to encrypt data packets while realizing destination address translation and remote access. Therefore, routers with VPN functions are very suitable for projects that require high data transmission security.

▍ Advantages of VPN

1. Economy

Remote users can conduct network communication through VPN, the communication cost is greatly reduced, and enterprises can save the cost of purchasing and maintaining communication equipment.

2. Convenience

The use of VPN only requires simple management, and the IP addresses of VPN users can be assigned uniformly. This not only greatly reduces network complexity, but also improves the interconnectivity of enterprise networks.

3. Safety

In the application of VPN, the security of private data transmission through the public network is ensured through user authentication, tunnel encryption technology, and data authentication.

▍Classification of VPN

Common classifications of industrial VPN routers include PPTP, L2TP, and IPSEC:

PPTP: The PPTP protocol is the most common and common protocol. Most of the industrial routers on the market are equipped with the PPTP security protocol, that is, the point-to-point tunneling protocol. Allows remote users to securely access the corporate network by dialing into the ISP, directly connecting to the Internet or other networks.

L2TP: L2TP is an industry-standard Internet tunneling protocol, similar to PPTP, which can also encrypt network data streams. The difference is that PPTP uses a single tunnel, and L2TP uses multiple tunnels; L2TP provides packet header compression and tunnel authentication, while PPTP does not.

IPSEC: The IPSEC protocol is not a single protocol. It provides a complete framework for using network data security at the IP layer, including network authentication protocols AH, ESP, IKE, and some algorithms for network authentication and encryption. In communication, only the sender and receiver are the only computers that understand IPSEC protection. The security services of IPSEC are required to support shared keys to complete authentication and confidentiality, and require manual key input methods.

The VPN function is very popular in industrial, commercial and civil use, it can make network transmission more professional and free.

Caimore industrial routers have VPN function, support IPSEC, L2TP, PPTP, GRE and other VPN protocols, support DHCP client, DDNS, firewall, SNAT/DNAT, DMZ host, WEB configuration and other practical functions, after strict design and testing And 15 years of practical application, the product performance is stable and reliable.