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> **Possible Duplicate:**  
> 
> [What are the purposes of the addresses in this ARP table?](https://superuser.com/questions/219439/what-are-the-purposes-of-the-addresses-in-this-arp-table) 
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I notice that ANY computer that I go to, if I do a *arp -a* command from a command line, I receive a reply back of 224.0.0.22. It returns as a physical address and is labeled as static. I get this from work computers, home computers, everywhere! So what is it exactly for? Where does it point to?

![enter image description here](https://i.stack.imgur.com/zML9D.png)