Network engineers and networking trainees would know already that IP addresses falling between and qualify as private IPs. Obviously, being the 4th IP address from the beginning, the 192.168.o.3 IP address also belongs to this range of private IPs. These IP addresses are valid as nodes on Internet. Resolution and routing of these IPs is possible across the Internet. The IP addresses that are private are not valid on the Internet, but are used in privately owned networks. The range of IP addresses to which 192.168.o.3 belongs is also known as the range for Class C networks. These are the networks that are preferably managed in smaller blocks. However, this does not imply that such a network will be limited in coverage and reach.

There are so many router manufacturers in the industry that it is simply not possible for network engineers to learn the default IP addresses for all of these. Several routers in the market come with a default IP of 192.168.o.3. ‘Default’ has pretty flexible implications here. This does not mean that the router will always have to work with the IP address of 192.168.o.3. The network administrator has the option of 1) changing the IP address of the router from the default 192.168.o.3 to something else, or 2) doing the opposite, that is, changing the IP address of a router to 192.168.o.3.

D-Link and Netgear routers are extremely popular in the networking industry, and network engineers can hardly get ahead without interacting with equipment from these manufacturers. Generally, routers from these two manufacturers have as the default IP address. But then, there is always a chance that these routers would become parts of already present networks in an office. In such a case, network engineers prefer to maintain the IP addresses in a sequential order, which means that if there are devices that have already been assigned IPs of and, then it will make sense to re-configure the new router to work with an IP address of 192.168.o.3. This way, you will be able to make quick networking configuration and addressing changes without necessarily having to refer to somebody for knowing the IP addresses being used by the devices.

To do this, you’ll first need to connect the router to a computer through an Ethernet connection. Once this is done, you can use the web browser on your computer to access the configuration panel of the router. Of course, you will need to know the IP address of the router. Let us suppose you are working with a D-Link router with a default IP of Use the IP address of the router in the address bar of the browser and press Enter. You will be prompted for login credentials Enter the username and password and you will be taken to the control panel. Here, you can change the IP address of the router to 192.168.o.3.