Which multicast scope does FF02 correspond to in IPv6?

The address scope identified by the prefix FF02 in IPv6 corresponds to link-local multicast addresses. In IPv6 multicast addressing, the "FF" indicates that it is a multicast address, while the "02" following it designates that the multicast scope is limited to a single link.

Link-local multicast addresses are intended to be used for communication between nodes on the same local link, which means that they are not forwarded by routers to other networks. This scope is essential for various protocols that require local communication, such as neighbor discovery processes where devices on the same segment need to exchange information without requiring end-to-end routing.

Understanding the significance of the link-local scope also underscores why multicast addressing is critical in IPv6, as it provides efficient local communication without the need for broader addressability that may not be relevant in localized scenarios.