mac地址原理及应用简介--znzo（MAC address principle and application brief introduction --znzo）.docVIP

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mac地址原理及应用简介--znzo（MAC address principle and application brief introduction --znzo）.doc

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mac地址原理及应用简介--znzo（MAC address principle and application brief introduction --znzo）

mac地址原理及应用简介--znzo（MAC address principle and application brief introduction --znzo） The classification of --| MAC address the principle and application of --znzoznzoVmware virtual computer software back to the home page | index | - 2005 -ping command detailed MAC address principle and application profiles - - Brief introduction of MAC address principle and Application Brief introduction of MAC address principle and Application We all know that in real life, we all have one of their own ID number - ID number, you can go to the police station to change your name, but your ID number, but not with your own name change and change. In the Internet world, we can often hear the concept of IP addresses, but the MAC address is rarely mentioned. We often only know the IP address, and the MAC address is the hero behind the scenes. As we do in our daily communication, it is the same thing to call someone elses name without calling someone elses identity card number. IP address and MAC address In everyday computer usage, everyone knows that IP addresses can be changed at any time as long as the IP address is reasonable. The method of modification is relatively simple, just double-click on the TCP/IP protocol of the corresponding network card, and then modify the parameters. So the MAC address is the same as the IP address. What is the similarity between them and what is the difference between them? Lets take a look at them, and understand their differences and similarities so that we can master them better. At OSI (Open) System, Interconnection, open systems interconnection) 7 layer network protocol reference model (Figure 1), the second layer is data link layer (Data) Link). The MAC address is also called a physical address, a hardware address, or a link address. It is written inside the hardware when it is produced by the network device manufacturer. The IP address and the MAC address are represented in binary in the computer, the IP address is 32 bits, and the MAC address is 4