The Network IP (Internet Protocol) is a unique address for the SIMs in your private network.
In general, our suggested settings should work fine with most common network configurations. However, if your devices and network connector have to communicate with your existing Local Area Network (LAN) there is a risk of another node in the network having an IP address within the suggested range. In this case, you will need to select a custom IP address range for your network, if you are unsure check with your IT administrator.
The Subnet Mask defines the IP address range for your client network so that your devices are each assigned a private IP address within that range. This is required by our system to identify a SIM communication.
For example, An IP Address: 192.168.0.1 with a Subnet Mask: 255.255.255.0 will give you a range between 192.168.0.1 and 192.168.0.254.
That will give you up to 254 addresses which means you can have up to 254 SIMs running on the network.
When defining this range keep in mind the LAN (Local Area Network) IP addresses in use in order to avoid issues. Check this with the IT administrator of your LAN if you need more help.