There is a specific industrial-grade router marketed under the model number . This device is an all-in-one 3G/4G LTE modem and Wi-Fi router.
If you are writing code for hardware like an with an Ethernet shield, you "develop" the connection by defining the IP as a byte array: My Home Automation Web Switch - Arduino Forum 192168101
Depending on your goal, here is how you can "develop" or configure this: 1. Networking Hardware There is a specific industrial-grade router marketed under