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If you are using OpenBSD or Mac OS X type the following command: If you are using FreeBSD type the following command:

Under Linux you can type the command to setup a new MAC address : Please note that physical MAC addresses are permanent, but several mechanisms allow modification (read as spoofing) of the MAC address that is reported by the operating system. # netstat -ia A Note About HP-UX Unix Users Type the following command to find out the mac address: Apple OS X and other Unix like operating systems.The primary options are clearing an address mapping entry and manually setting up one. -n : Shows numerical addresses instead of trying to determine symbolic host, port or user names.Īrp manipulates the kernel’s ARP cache in various ways.Sample outputs: Address HWtype HWaddress Flags Mask Iface use the following to see your routers or other computers mac address on other end: Use the arp command to manipulates or displays the kernel’s IPv4 network neighbour cache i.e. Valid_lft forever preferred_lft forever Find out my Mac address Inet6 fe80::208:9bff:fec4:3031/64 scope link tentative dadfailed Sample outputs: 4: bond0: mtu 9000 qdisc noqueue state UP Most modern Linux distro prefer to use the ip command: # ifconfig -a Use ip Command To Find Out Mac Address Under Linux I recommend that you pass -a option to ifconfig command to get details about all interfaces which are currently available, even if down: TX packets:45 errors:0 dropped:0 overruns:0 carrier:0

RX packets:312 errors:0 dropped:0 overruns:0 frame:0 UP BROADCAST RUNNING SLAVE MULTICAST MTU:9000 Metric:1 Sample outputs: eth0 Link encap:Ethernet HWaddr 00:08:9b:c4:30:31 You can use the ifconfig command to view the mac address of your own computer or an ethernet adapter, enter: Use ifconfig Command To Find Out Mac Address Under Unix Like Operating Systems This blog posts demonstrates how to get the Media Access Control (MAC) address for an ethernet adapter under Linux, Unix, Apple OS X, and *BSD operating systems using command line options.