We will be using system() call through a C++ program that directly communicates with the OS (Operating System) and allows us to use the Linux commands. It acts like a unique ID used to communicate within a network.
#Show mac address in linux mac#
In the above example, XXXXXXXXXXXX and YYYYYYYYYYY are the MAC Address of the two LAN connections in use. The MAC address or Media Access Control Address is a 12 digit hexadecimal number. The second line should always indicate the type of link layer in use and the current hardware address (MAC Address). The first line summarizes the current name of the device, the flags set on the device, the maximum transmission unit (MTU) and so on.
The ip utility should list several parameters of the device. For each device, two lines should summarize the link state and characteristics. Link/ether YYYYYYYYYYYY brd ff:ff:ff:ff:ff:ff Link/ether XXXXXXXXXXXX brd ff:ff:ff:ff:ff:ffģ: wlp2s0: mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
Launch Terminal and enter the ip link command: ip link showĮxample Output: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000Ģ: enp1s0: mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 Every PC’s network device should have a unique MAC address. MAC address is another critical parameter of a network device, including your PC’s hardware or a server. Typically, eth0 is for Ethernet connection, and wlp2s0 for Wireless connection.įor example, use eth0 : ip addr show eth0 Finding the MAC Address of the Linux System Inet6 1:2:00:33:333/64 scope global mngtmpaddr noprefixroute dynamic Valid_lft 548176sec preferred_lft 61403sec Inet6 AB:AD:AK:AI/64 scope global temporary dynamic Valid_lft 61791sec preferred_lft 61791sec Sample Output: 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 ip route list | grep defaultĪlternatively, you can also use device name in particular too, but you should know the names of network devices for that. If you are only interested in the default IP address that connects to the internet, use a grep parameter to list that one. It should display all available IP address including device names. ip route list ip route list command usage in Ubuntu 17.10 Launch ‘Terminal’ and enter the following command to list all the IP address. s to display more information about the command ip command usage in Ubuntu 17.10 Finding the IP address of the Linux System At the prompt, type ifconfig -a grep HWaddr and then push enter. Like with almost everything on the Linux command line, there is more than one way to find MAC address data.
Where xx must be replaced with one of the following to get the desired output. Method 2: Find MAC Address with the ifconfig Command.
0 kommentar(er)
