Understanding IP Addresses and Their Types

September 18, 2024

IP

An IP address is a unique identifier for a device on the Internet or a local network. "IP" stands for Internet Protocol, the rules that define the format of data sent across networks. Essentially, IP addresses allow data to be transmitted between devices, making them accessible for communication.

Versions

  • IPv4: The original protocol, using 32-bit decimal notation, allowing around 4 billion addresses.

    Example: 102.22.192.181

  • IPv6: Introduced to meet the growing demand, uses 128-bit alphanumeric hexadecimal notation, providing ~340e+36 addresses.

    Example: 2001:0db8:85a3:0000:0000:8a2e:0370:7334

Types

  • Public: Assigned by the ISP, this IP is visible on the internet. Example: Your router's public IP.

  • Private: Assigned within local networks by your router. Example: IP addresses for your home devices.

  • Static: Manually assigned, often used for servers or remote access, providing reliability.

  • Dynamic: Assigned automatically, changes over time, commonly used in consumer devices.