IP: Layer 2 send this to

As with the example in Chapter 1, "Building a Simple Network," Address Resolution Protocol (ARP) does not have an entry in its MAC address table, so it must place the packet in the parking lot until it uses ARP to resolve the Layer 3 logical IP address to the Layer 2 physical MAC address. This is shown in Figure 2-6.

Figure 2-6 Checking the ARP Table

Layer 2: ARP, do you have a mapping for

ARP: Is in my ARP table? No, Layer 2 will have to put the packet in the parking lot until I do an ARP.

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