How to find/display your MAC Address

Linux
Solaris/SunOS
FreeBSD/NetBSD
OpenBSD
Caldera/SCO UnixWare/OpenUNIX
HP-UX (HP UNIX)
IRIX (SGI UNIX)
NeXTStep (NeXT UNIX)
AIX (IBM UNIX)
Tru64 UNIX (Digital UNIX)
Macintosh OS X
Macintosh OS w/ Open Transport (Pre-MacOS X)
Macintosh OS w/ MacTCP (Pre-MacOS X)
Windows NT/2000/2003/XP
Windows 95/98/ME
DOS/Windows 3.11/Windows for Workgroups

Linux

As the root user (or user with appropriate permissions)
Type “ifconfig -a”
From the displayed information, find eth0 (this is the default first Ethernet adapter)
Locate the number next to the HWaddr. This is your MAC address

The MAC Address will be displayed in the form of 00:08:C7:1B:8C:02.

Example "ifconfig -a" output:
eth0      Link encap:Ethernet HWaddr 00:08:C7:1B:8C:02
          inet addr:192.168.111.20  Bcast:192.168.111.255  Mask:255.255.255.0

...additional output removed...

Solaris/SunOS

As the root user (or user with appropriate permissions)
Type “/sbin/ifconfig -a”
From the displayed information, find the Ethernet adapter (it will probably be called le0 or ie0)
Locate the number next to ether. This is your MAC address

The MAC Address will be displayed in the form of 0:3:ba:26:1:b0 — leading zeros are removed. For this example, the actual MAC Address would be 00:03:ba:26:01:b0.

Example "ifconfig -a" output:
le0: flags=863 mtu 1500
     inet 192.168.111.30 netmask ffffff00 broadcast 192.168.111.255
     ether 0:3:ba:26:1:b0

FreeBSD/NetBSD

As the root user (or user with appropriate permissions)
Type “ifconfig -a”
From the displayed information, find the Ethernet adapter (the name changes based on the Ethernet card installed)
Locate the number next to the HWaddr. This is your MAC address

The MAC Address will be displayed in the form of 00:08:C7:1B:8C:02.

(Using the command“dmesg”will also display the MAC address — along with a lot of other information)

Example "ifconfig -a" output:
    ed0: flags=8843 mtu 1500
         inet 192.168.111.40 netmask 0xffffff00 broadcast 192.168.111.255
         ether 00:08:C7:1B:8C:02

...additional output removed...

OpenBSD

As the root user (or user with appropriate permissions)
Type “netstat -in”
From the displayed information, find the Ethernet adapter (the name changes based on the Ethernet card installed)
Locate the number below Address. This is your MAC address

The MAC Address will be displayed in the form of 00:08:c7:1b:8c:02.

Example "netstat -in" output:
Name  Mtu  Network  Address           Ipkts    Ierrs Opkts   Oerrs Colls
fxp0  1500 <Link>   00:08:c7:1b:8c:02 4112773  0     224501  0     0

...additional output removed...

Caldera/SCO UnixWare/OpenUNIX

As the root user (or user with appropriate permissions)
Type “ndstat”
From the displayed information, find net0 (this is the default first Ethernet adapter)
Locate the number below MAC Address in use. This is your MAC address

The MAC Address will be displayed in the form of 00:00:c0:88:0a:2e.

Example "ndstat" output:
   Device       MAC address in use    Factory MAC Address
   ------       ------------------    -------------------
   /dev/net0    00:00:c0:88:0a:2e     00:00:c0:88:0a:2e

...additional output removed...

HP-UX (HP UNIX)

As the root user (or user with appropriate permissions)
Type “/usr/sbin/lanscan”
From the displayed information, find lan0 (this is the default first Ethernet adapter)
Locate the number below Address. This is your MAC address

The MAC Address will be displayed in the form of 0x000E7F0D81D6 — the leading hexadecimal indicator should be removed. For this example, the actual MAC Address would be 00:0E:7F:0D:81:D6.

Example "lanscan" output:
Hardware Station        Dev Hardware Net-Interface   NM  Encapsulation      Mjr
Path     Address        lu  State    NameUnit State  ID  Methods            Num
2.0.2    0x000E7F0D81D6 0   UP       lan0     UP     4   ETHER              52

...additional output removed...

IRIX (SGI UNIX)

IRIX 4.01 or later
- As the root user (or user with appropriate permissions)
- Type “netstat -ia”
- From the displayed information, find the Ethernet adapter (the name changes based on the Ethernet card installed)
- Locate the number below Address. This is your MAC address
Alternate Method
- Typing “/etc/nvram eaddr” should also show the MAC address

The MAC Address will be displayed in the form of 00:00:6b:71:1a:6a.

Example "netstat -ia" output:
Name  Mtu    Network   Address            Ipkts   Ierrs   Opkts  Oerrs  Coll
ec0   1500   noWhere   warum              6514913 10234  184317     0  13513
                       192.168.111.90
                       00:00:6b:71:1a:6a
...additional output removed...

NeXTStep

As the root user (or user with appropriate permissions)
Type “/sbin/ifconfig -a”
From the displayed information, find the Ethernet adapter (it will probably be called le0 or ie0)
Locate the number next to ether. This is your MAC address

The MAC Address will be displayed in the form of 0:0:f:a1:75:a0 — leading zeros are removed. For this example, the actual MAC Address would be 00:00:0f:a1:75:a0.

Example "ifconfig -a" output:
le0: flags=863 mtu 1500
     inet 192.168.111.70 netmask ffffff00 broadcast 192.168.111.255
     ether 0:0:f:a1:75:a0

AIX (IBM UNIX)

As the root user (or user with appropriate permissions)
Type “netstat -ia”
From the displayed information, find the Ethernet adapter (the name changes based on the Ethernet card installed)
Locate the number below Address. This is your MAC address

The MAC Address will be displayed in the form of 00:09:6B:51:1f:79.

Example "netstat -ia" output:
Name  Mtu    Network   Address            Ipkts   Ierrs   Opkts  Oerrs  Coll
ec0   1500   noWhere   flotsam              5514233 11434  101317     0  14113
                       192.168.111.95
                       00:09:6B:51:1f:79
...additional output removed...

Tru64 UNIX (Digital UNIX)

As the root user (or user with appropriate permissions)
Type “netstat -ia”
From the displayed information, find the Ethernet adapter (the name changes based on the Ethernet card installed)
Locate the number below Address. This is your MAC address

The MAC Address will be displayed in the form of >00:00:F8:1a:73:da.

Example "netstat -ia" output:
Name  Mtu    Network   Address            Ipkts   Ierrs   Opkts  Oerrs  Coll
ec0   1500   noWhere   jetsam              5514233 11434  101317     0  14113
                       192.168.111.95
                       00:00:F8:1a:73:da
...additional output removed...

Macintosh OS X

Wired (MacOS 10.2 and earlier)
- From the dock, select System Preferences
- Select Network, Select Location, Select Interface
- Select TCP/IP Tab
- Locate the number next to the Ethernet Address. This is your MAC address
Wired (MacOS 10.3 and later)
- From the dock, select System Preferences
- Select Network, Select Location, Select Interface
- Select Ethernet Tab
- Locate the number next to the Ethernet ID. This is your MAC address
Wireless (AirPort)
- From the dock, select System Preferences
- Select Network, Select Location, Select Interface
- Select AirPort Tab
- Locate the number next to the AirPort ID. This is your MAC address

The MAC Address will be displayed in the form of 00:0D:93:13:51:1A.

Macintosh OS w/ Open Transport (Pre-MacOS X)

From the Apple Menu, select Control Panels
Open either the Appletalk or the TCP/IP Control Panel
From the Edit Menu, select User Mode
Change the mode to Advanced or Admin
Click the Info Button (lower left hand corner)
An AppleTalk or TCP/IP window will pop up
Locate the number next to the Hardware Address. This is your MAC address

The MAC Address will be displayed in the form of 00 0D 93 13 51 1A.

Macintosh OS w/ MacTCP (Pre-MacOS X)

Make sure CAPS Lock is not on
Make sure the Macintosh is connected to an Ethernet network
From the Apple Menu, select Control Panels
Open the MacTCP Control Panel
Hold down the Option Key and click the Ethernet icon
Locate the number next to the Hardware Ethercard Address that appears beneath the icon. This is your MAC address