An IPv6 enabled device sends a data packet addressed to FF02::2. What does this address target?

The address FF02::2 is a specific multicast address in IPv6. It is designed to target all IPv6 routers on the local link, meaning that any IPv6-enabled router that is connected to the same local network will receive packets sent to this address. Multicast addresses in IPv6 are used to allow a single packet to be sent to multiple destinations simultaneously, making communication more efficient in scenarios where the same data needs to be sent to multiple devices, such as routers.

In the case of FF02::2, the "FF" signifies that this is a multicast address, and the "02" indicates that it is scoped to the link-local level. Therefore, devices that send data packets to this address are broadcasting their messages to all routers in the local segment, allowing for functionalities such as router discovery and coordination. This is particularly useful for protocols like ICMPv6, where devices need to communicate with all nearby routers.