IANA has allocated also for Layer2 multicast addressing a range. The range start from 01:00:5E:00:00:00 through 01:00:5E:7F:FF:FF. This will leave for us 23 bits available to be used for multicast group ID.
Bottom line, whenever you see a MAC address going to a destination and starting with 01:00:5E, then know that this is a multicast Layer2 addressing.
This is all what I wanted to explain in this chapter. I know you are wondering where the LABS are, I promise you that starting next chapter we will start doing LABS and a lot of them ????. See you in the upcoming chapter.