Let's take a look at an example where an ARP request fails.
What we'll do is start a new capture, and this time we will ping an address that does not exist on my network:
We will see Destination host unreachable show up. We will do that a couple of times. Since we are trying a ping, it's going to do that four times on a Windows system. If you're on Linux or macOS, it'll probably do that nonstop, depending on what you use.
Go ahead and stop that capture; we have plenty of information here:
We can see the request ...
