I was using AMD's magic packet utility to build a list of computers to do wake-on-lan and it found these entries:
188.8.131.52 igmp.mcast.net 01-00-5e-00-00-16 184.108.40.206 *NameNotFound* 01-00-5e-00-00-fc 220.127.116.11 *NameNotFound* 01-00-5e-7f-ff-fa
First of all, I'm not sure why it would find these. They're not in the subnet I provided. I've never heard of them before; if they're reserved or not.
Feel free to offer a more descriptive title to this question and delete this comment. I'm not sure how to describe what I'm seeing, google only makes fun of me when I ask it this.