CHAPTER 5 Address Resolution Protocol

What You Will Learn

In this chapter, you will learn about the hardware addressing used in the data link layer frame and how it is found by the sender. We’ll talk a lot about the hardware addresses used on LANs, the MAC addresses.

You will learn about the ARP protocol, which is how IP stacks on LANs identify the hardware address that the destination field of the frame should use.

The Internet, or any internetwork, is made up of a combination of physical networks such as LANs and internetworking devices such as routers. A packet sent by a host might pass through several different physical networks before finally reaching its destination.

The hosts and routers at the network layer are identified by their ...

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