Private IP Addresses
Devices connected to a local network are uniquely identified by their private IP addresses. To ensure safe and effective communication within a particular network, they are made to be non-routable on the open internet.
Important Features of Private IP Addresses:
Network Uniqueness: Every device on a local network has a private IP address that is specific to it. This enables direct communication between devices.
Non-Routable on the Public Internet: The public internet cannot route private IP addresses. This aids in shielding gadgets from outside dangers and illegal access.
Defined Ranges: specific ranges of Private IP addresses define by the Internet Assigned Numbers Authority (IANA):
- 10.0.0.0 to 10.255.255.255 (Private IP Address Class A)
- 172.16.0.0 to 172.31.255.255 (Private IP Address Class B)
- 192.168.0.0 to 192.168.255.255 (Private IP Address Class C)
Private IP addresses: Why Use ?
Security: Private IP addresses improve security by shielding devices from the general internet.
Efficiency: Private IP addresses eliminate the need for intricate routing configurations and streamline network administration.
Flexibility: Large-scale networks with multiple devices are made possible by private IP address ranges.
Public & Private IP Address
| Public IP Address | Private IP Address |
| Globally reach on word wide | Reach on Internally |
| Works on Internet | Works on office home or Local LAN |
| Unique IP Address, Not Used By other Devices | Reuse by Other Device |
| Not Free | Free |
| 10.0.0.0 to 10.255.255.255 (Class A) 172.16.0.0 to 172.31.255.255 (Class B) 192.168.0.0 to 192.168.255.255 (Class C) |
