How to access the network server on the intranet through the 4G lte router? Considerations and analysis of advantages and disadvantages during use

With the rapid development of IIoT, 4G lte router have become key devices for connecting remote devices and enabling real-time data transmission. For traditional industries, how to achieve access to network servers from the external network through 4G lte routers is not only related to the efficiency and security of data transmission, but also directly affects the production efficiency and business continuity of enterprises. This article will explore the implementation methods, usage considerations, and advantages and disadvantages of 4G lte routers in this process.

How to complete the network server for accessing the intranet from the external network based on the 4G lte router?

1.1 VPN virtual private network technology

VPN technology is one of the most common methods to achieve access to the intranet from the internet. By configuring a VPN server such as L2TP or IPsec on a 4G lte router, an encrypted tunnel can be created to securely transmit access requests from the internet to the intranet server. The specific steps are as follows:
VPN server configuration: Set up a VPN server on the 4G lte router, including protocol selection, server address, port number, username, and password.
2. Client configuration: Install and configure client software supporting the corresponding VPN protocol on the external network device, and enter the relevant information of the VPN server to connect.
Routing and NAT settings: Ensure that the routing table and NAT network address translation configuration of the 4G lte router are correct so that the VPN traffic can be routed correctly to the intranet server.
Firewall and security policy: Adjust the firewall and security policy to ensure that VPN traffic can pass through and prevent potential security threats.
1.2 Port Forwarding
Another way to access the intranet from the external network is through port forwarding. Configure port forwarding rules on the 4G lte router to forward external requests to specific ports on the intranet server. In this way, when external network users attempt to access the 4g lte router's public IP address and specified port, the 4g lte router will automatically forward the request to the intranet server.

II. Precautions for use

2.1 Safety

Due to the security issues involved in data transmission when accessing the intranet from the external network, great attention must be paid to security during configuration and use. This includes using strong passwords, regularly updating firmware and software, and restricting VPN access privileges.

2.2 Stability

4G lte routers should have good stability and reliability to ensure long-term stable operation in complex industrial environments. At the same time, it is necessary to pay attention to network signal strength and stability to avoid data transmission interruptions caused by signal problems.

2.3 Compatibility

When selecting a 4G lte router, it is necessary to ensure that its compatibility matches the existing network equipment and systems of the enterprise. In addition, attention should be paid to the compatibility of VPN protocols and port forwarding functions.

2.4 Performance and Bandwidth

Choose the right 4G lte router based on the actual needs of the enterprise to ensure that its performance and bandwidth can meet the needs of data transmission. At the same time, it is important to pay attention to issues such as network congestion and bandwidth limitations to avoid affecting the efficiency and stability of data transmission.

III. Analysis of Strengths and Weaknesses

3.1 Advantages

High flexibility: 4G lte routers are not limited by geographical location and can be flexibly deployed in places where remote access is required.
Strong real-time performance: Data transmission is achieved through 4G network, which has high real-time performance and reliability.
Good security: Encrypted transmission is achieved through VPN and other technologies to ensure the security of data transmission.
Multi-protocol support: 4G lte routers usually support multiple communication protocols to meet the needs of different devices and systems.

3.2 Disadvantages

Higher cost: Compared with wired networks, 4G networks have higher costs and require additional traffic fees.
Relying on mobile networks: The performance of 4G lte routers is affected by mobile network signals, and unstable signals may lead to data transmission interruptions.
Configuration complexity: For non-professionals, the configuration and use of 4G lte routers may be complex.
Security challenges: Although technologies such as VPN can improve security, there is still a risk of being attacked and regular updates and maintenance are required.
Using a 4G lte router to access a network server on the intranet through the internet is an efficient, flexible, and secure method. However, it is important to pay attention to issues such as security, stability, compatibility, and performance during use, and to choose the appropriate equipment and solution based on the actual needs of the enterprise.