计算机网络与抓包

OSI 七层模型

从低到高分别为物理层、数据链路层、网络层、传输层、会话层、表示层、应用层

ARP协议（数据链路层协议），即为address resolution protocol ，是一个根据IP地址获取mac地址的TCP/IP协议。

抓包分析ARP协议：

过程描述：在192.168.80.202上ping192.168.80.200以后，执行arp -a展示，然后进行抓包分析。

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附操作过程：