Fixed Private IP (Private APN)

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In a context of increasing connected devices and the transmission of increasingly large volumes of data, the issue of security is paramount. In the field of SIM card connectivity, devices can receive private fixed / dynamic IP addresses from the operator or public fixed / dynamic IP addresses . This assignment is defined by the APN used in the device configuration and by the option that was chosen when the M2M ( machine to machine ) SIM card was activated .

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Case 1: fixed public IP address

It is used especially in the case that a server or a person wants to connect to the device remotely (for example, terminal with video content, video surveillance camera …). This option carries risks since the IP address is static. Therefore, the device and the SIM card will be easily accessible by malicious people who could cause excessive consumption and fraudulent use.

The fixed public IP address has the advantage of not requiring additional technical configuration, so the server can connect directly to it.

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Case 2: dynamic public IP

It is used especially when a server or a person wants to connect to the device remotely (for example, a video camera to eliminate doubts or a sensor to activate a firmware update). May require implementation of DynDNS type solution . The Dynamic DNS service will redirect a domain name of your choice to the public IP address, so that at any time the Dynamic DNS service will know your IP address and connect to it if necessary.

These first two configurations are not very secure since the IP addresses are visible on the Internet, so it is easy for a specialist to identify them and make connection attempts. This can create a denial of service or increased consumption of the SIM card.

In the field of SIM card connectivity, devices can receive private fixed / dynamic IP addresses from the operator or public fixed / dynamic IP addresses

In this way, we found that the invoices of the operators can be multiplied by 10 compared to normal operation.

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Case 3: dynamic private IP

It is used in case the device is going to connect to your server to send information. This is the most common configuration in the M2M industry, and does not allow remote device management natively. Your modems must be VPN clients (the router’s ability to mount the VPN tunnel when connecting), which allows computers to communicate with their servers in a secure manner. Also, the modem is at the source of the connection.

However, there are several flaws in this solution: there is no real time, it is necessary to start a connection for each device, it requires more expensive equipment …

IP networks.

Case 4: Fixed Private IP (Private APN)

It is used in the event that the device must connect to its server to send information or retrieve it in real time and in a secure way. This situation will be very common in areas such as remote reading, telemetry and all operations that require remote supervision.

Specifically, this solution has multiple advantages: it facilitates the configuration of the equipment, simplifies its maintenance and remote monitoring, ensures the exchange of data between the private APN and its information system and has a single single link between its equipment and your information system.

Although it can be expensive and have long implementation times, Matoomaallows, thanks to its MatooWan solution, the commissioning of this private network quickly and at an economical price. The objective of this private APN solution is to secure connections and facilitate remote access to industrial equipment connected by SIM card, allowing bi-directional, secure and real-time access of connected devices.

By directly connecting the customer information system to MatooWan, data exchange is ensured. In this way, the data is transmitted through a private APN and avoids exposure to the Internet thanks to the installation of fixed and non-routable private IPs, a way to optimize the security and quality of the data transmitted between IoT devices (Internet of things).

This private APN solution simplifies the maintenance and monitoring of connected equipment. Additionally, multiple communications can be initiated simultaneously between servers and connected objects, simplifying remote monitoring and maintenance.