1. The switchboard is one kind of MAC(net calorie-based hardware address) identification, can accomplish an encapsulation transmitting functional network of data bag equipment.

2. If the hardware address in the frame is a broadcast address, or if it matches the network interface, the frame is passed to the appropriate protocol in the layer above.

3. Then it obtains the destination hardware address of the next router and finally.

4. If the two values match, the destination hardware address is examined.

5. Step 8: The source machine will process the Address Resolution Protocol (ARP) reply from destination, it store the Sender Hardware Address as the layer 2 address of the destination.

6. The IP packet can now be delivered using the destination hardware address.

7. To make future communications more efficient, the IP address and hardware address mapping of the source host is also included in the request frame.

7. try its best to gather and make good sentences.

8. The RARP protocol is used by IP to find the IP address based on the hardware address of a computer network card.

9. If the mapping is not in cache, ARPARP request frame for the destination hosts hardware address.

10. When IP routes packets, it needs to obtain the destination hardware address.