Chapter 14. REVERSE ADDRESS RESOLUTION AND THE TCP/IP REVERSE ADDRESS RESOLUTION PROTOCOL (RARP)

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In Chapter 13, you explored the operation of the TCP/IP Address Resolution Protocol (ARP). ARP is used when a device needs to determine the layer 2 (hardware) address of some other device but has only its layer 3 (network, IP) address. It broadcasts a hardware layer request, and the target device responds with the hardware address that matches the known IP address.

In theory, it is also possible to use ARP in the opposite way. If you know the hardware address of a device but not its IP address, you could broadcast a request containing the hardware address ...

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