When you connect any device to the internet, it has its own unique Internet Protocol (IP) address that allows for communication between the device and the web. Until fairly recently, the "standard" for IP was IPv4, which utilizes a 32-bit addressing scheme and assigns addresses to more than 4 billion devices across the globe. However, in recent years, many devices have shifted to using IPv6, a more advanced and secure version of the Internet Protocol. So, what is IPv6, and how does it set itself apart from IPv4? Likewise, why should you be using IPv6 if you're not already? We answer these questions and more below. What Is IPv6? IPv6 technology has been around since 1998. However, because IPv4 seemed to be working well and was seen as the standard, few were in a hurry to upgrade. Specifically, IPv6 sets itself apart from IPv4 by using 128-bit addressing instead of