作为网络管理员通常都很重视IP地址的分配与管理,但往往会忽略网卡MAC的地址。其实网卡的MAC地址在特定的情况下也非常有用,比如为了防止IP地址被盗用或实现员工的上网时段控制,我们可以将IP与MAC地址捆绑在一起。不过由于MAC地址的离散性,所以它的管理并不像IP地址那么方便,这 As a network administrator usually attaches great importance to the allocation and management of IP addresses, but often ignore the MAC address of the card. In fact, the MAC address of the card is also very useful in specific circumstances, for example, in order to prevent the IP address being stolen or to control employee access to the Internet, we can IP and MAC address bundled together. However, due to the discrete nature of the MAC address, its management is not as convenient as the IP address, which