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Chapter 10. Network Protocols > The Protocols of the Web

10.2. The Protocols of the Web

Following are descriptions of the most important network protocols for the Web with performance information on each. Lower layers are presented first.

10.2.1. ARP

The Address Resolution Protocol (ARP) is what translates IP addresses to Ethernet's hardware addresses, also known as Media Access Control (MAC) addresses. A host needing to get an IP packet to a final destination on the same LAN as itself sends out an ARP broadcast asking if anyone knows the MAC address assigned to the desired IP. The machine with the target IP should answer the ARP request.


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