IPv6 Internet Protocol Version 6 (IPv6) is the current version of the Internet Protocol (IP, which provides an identification and location system for computers on networks and routes traffic over the Internet. IPv6 is intended as a replacement for IPv4. A successor became necessary because all available addresses were used up in 2011. In the meantime, however, Network Address Translation (NAT) allows end-user devices to use common IPv4 addresses. Therefore, the Ipv4 address space is still present. However, besides providing a larger address space, IPv6 also provides an efficient packet processing mechanism, better security and higher performance. IPv6 is based on a 128-bit addressing system. This means that 2^128 unique IP addresses can be created. There are three different types of IPv6 addresses: Unicast (one-to-one communication between two devices) Multicast (one-to-many communication) Anycast (one-to-nearest communication; forwarded to nearest router based on routing). To all terms in the expert knowledge To all terms in the expert knowledge