An IP address (Internet Protocol address) is a unique identifier assigned to devices like computers, smartphones, or printers that are connected to a network. It works like a digital address, helping devices communicate by sending and receiving information, much like how a home address directs mail.
Why Do We Need IP Addresses?
IP addresses enable devices to recognize and communicate with each other over networks. For instance, when you enter a website address (like www.Google.Com) in your browser, your device uses an IP address to locate and connect with Google’s server. Without IP addresses, this communication would not be possible.
Types of IP Addresses
- IPv4:- Example: 192.168.1.1.
Uses a 32-bit format, providing about 4.3 billion unique addresses.
- IPv6:- Example: 2001:0db8:85a3:0000:0000:8a2e:0370:7334.
Uses a 128-bit system, offering trillions of specific addresses to accommodate the growing number of devices.
- Public IP: Assigned by your Internet Service Provider (ISP) for global Internet
- Private IP: Used within local networks, allowing devices to communicate internally.
- Static IP: A fixed address that does not change, often used for servers.
- Dynamic IP: A temporary address that changes periodically, commonly used for most personal devices.
How IP Address Work
Each IP address is made up of two parts:
– Network ID: Identifies the network.
– Host ID: Identifies the specific device.
When you visit a website, your device sends a request to the site’s server using its IP address. The server then responds with the requested information.
Why Are IP Addresses Important
- They enable communication between devices.
- They assist in troubleshooting network issues.
- They serve as identifiers for online activity.
In summary, IP addresses are the backbone of modern networking, ensuring that devices remain connected and data flows smoothly.