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{{Admon/note | Use your Fedora Host | Complete this investigation on your Fedora host.}}
<span style="background-color:yellow">While we use 32bit IP addresses to communicate over an internetwork, on the local ethernet network packets are delivered to a 48bit hardware address (sometimes called a MAC address). The ARP protocol resolves 32bit IP addresses to 48bit MAC addresses by using a broadcast and caching the results. We can examine the ARP cache to get the MAC addresses of other computers on our local network.</span>
# On the fedora host <code>ping</code> each of your VM's
# Check the contents of the cache again by using the command <code>arp -n</code>
# What was the difference in output?
=== Investigation 7: How can I see what network services or ports are active on my Fedora system? ===