To obtain information about network interfaces in a computer, including the MAC addresses, we can use the NetworkInterface class. In this article we will see how to obtain the MAC addresses for each operational network card in the local machine using standard. The MAC addresses, combined with other identifying information, can be used to try to prevent your software from being illegally copied from one computer to another. One common use is to limit the execution of software according to a licensing scheme. There are some situations where it can be useful to obtain the MAC addresses that are in use on the local computer.

Finally, in this article, we will see MAC addresses with no punctuation, such as 0123456789AB. Sometimes the digits are grouped into three sets of four, such as 0123.4567.89AB. It is common to see six pairs of hexadecimal digits, delimited by hyphens or colons, such as 01-23-45-67-89-AB or 01:23:45:67:89:AB. The six bytes of a MAC address provide over 280 trillion possible values that can be formatted in various ways. For example, many notebook computers have two MAC addresses one for a wired network port and one for a wireless adapter. These include computers that have more than one network card. Other devices have multiple MAC addresses. For example, a printer connected to a small local area network (LAN) will generally require only one network interface and, therefore, a single MAC address. Many devices have only one MAC address, as they have only one connection. Many network technologies use a Media Access Control address, known as a MAC address, for this purpose.Ī MAC address is a six byte code that is assigned to each network interface in a device. MAC AddressesĪll devices that are connected together using a network must have a unique identifier in order that messages can be correctly passed between them. NET framework, the MAC addresses of the network interfaces in a computer can be found. A MAC address is a twelve digit hexadecimal number that uniquely identifies a network interface, such as a network card in a computer or printer.

Get mac address of a printer