| 19216821, also commonly written as 192.168.2.1, is an IP | | | | the 19216821 default address. In order for the router to |
| address no different from the many other addresses | | | | relay requests such as a webpage from your |
| available. It is also an address that can only be used | | | | computer to the external public network, it uses a |
| within a private network. To simplify matters, there are | | | | public IP address assigned by the ISP which remains |
| two types of networks in the great big world of | | | | unchanged even if you power off the router. To |
| networking. The public network is the cloud which | | | | correctly send and forward information to devices in |
| enables big and small networks to interact and | | | | the private network, the router utilizes a method called |
| communicate with one another via websites, emails, | | | | Network Address Translation. |
| e-commerce and many more. On the other hand, the | | | | There are a few reasons for a router to maintain a |
| private network is a world of devices within each | | | | minimum of two IP addresses. Firstly, it is to separate |
| network. Their sizes range from large networks for | | | | the private network from the public network for |
| organizations and academic institutions to smaller ones | | | | security purposes. Since misuse and abuse is rampant |
| for small business and residential use. Coming back to | | | | in the internet, this is an effective way to protect |
| the subject at hand, this IP address can be assigned to | | | | internal computers from hacker and crackers. Unique |
| any computing device or peripheral. However, its | | | | IP addresses under the current IPv4 is also exhaustible. |
| uniqueness lies in the fact that it is normally a default | | | | If each and every device is assigned a public address, |
| address for specific types of home broadband routers. | | | | it will run out more quickly than its current rate. As |
| As such, it's best to assign your personal computer or | | | | such, allocating one public address to a home |
| a peripheral with other addresses. | | | | broadband router which then uses its private address |
| When devices in your internal private network | | | | of 19216821 to communicate with devices within is an |
| communicate with the broadband router, they refer to | | | | ideal method. |