What Is IPv6 and How Does It Differ from IPv4
Discover the key differences between IPv4 and IPv6 and why the internet is shifting toward the newer protocol.
The Internet Protocol (IP) defines how devices communicate across networks. The two primary versions in use today are IPv4 and IPv6.
IPv4 Overview
IPv4, introduced in 1983, uses a 32-bit format and looks like this: `192.168.0.1`. It supports about 4.3 billion unique addresses, which once seemed like enough, but the explosion of internet-connected devices quickly changed that.
IPv6 Overview
IPv6 was developed to replace IPv4 and uses a 128-bit format, such as `2001:0db8:85a3:0000:0000:8a2e:0370:7334`. This system allows for an enormous number of unique addresses, solving the issue with IPv4.
IPv6 also improves:
- Security – Built-in encryption support
- Performance – Simplified routing and configuration
- Scalability – Future-proof for billions of devices
Conclusion
Both IPv4 and IPv6 coexist today, but the future clearly belongs to IPv6. DNScale supports both formats, ensuring your domains remain compatible and optimised as the internet evolves.