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

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.

: Robust aluminum chassis and six external antennas for high-performance connectivity.

If you are developing a network "piece" or segment using this IP address (192.168.10.1):