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IPv4 vs IPv6

by Iwan Price-Evans on Web technology • June 17, 2022

IPv4 and IPv6 are two different versions of Internet Protocols. IPv4 (Internet Protocol version 4) was first introduced in 1981. It has been used for over 30 years and is still widely used today. IPv6 (Internet Protocol version 6) was released in 1998 and is now being adopted by many companies and organizations.

What Is IPV4?

IPv4 stands for Internet Protocol version 4. This protocol is used to route data packets between computers on the internet. It uses 32 bits to identify every computer on the network.

What Is IPV6?

IPv6 stands for Internet Protocol version 6. This protocol was developed as an improvement over IPv4. It has 128 bits to identify every device connected to the internet.

Why Should You Care About IPv4 vs. IPv6?

IPv4 addresses are running out. In fact, IPv4 addresses are predicted to run out by 2031. That means that we need to start planning now for how to use these remaining addresses. IPv6 solves this problem by using a new addressing system.

What Are Some Differences Between IPv4 and IPv 6?

There are some key differences between IPv4 and IPv6.

  1. IPv6 has a 128-bit address space while IPv4 only has a 32-bit address space.
  2. IPv6 allows for much faster data transfer speeds.
  3. IPv6 is backward compatible so older devices will still work with IPv6 networks.
  4. IPv6 is more secure as it uses encryption.
  5. IPv6 is more scalable than IPv4.