MAC address

To find your computer’s MAC address, you can use ipconfig.

Open a command shell (or powershell if you’ve downloaded it) and enter the command “ipconfig /all”.

This will produce output similar to the following :

>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : your_system_name
Primary Dns Suffix  . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : home

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix  . : home
Description . . . . . . . . . . . : Intel(R) Wireless WiFi Link 5100
Physical Address. . . . . . . . . : 00-21-BC-14-AC-C0
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::990:d56d:f3d5:3232%12(Preferred)
IPv4 Address. . . . . . . . . . . : 181.156.1.46(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, September 22, 2010 5:38:14 PM
Lease Expires . . . . . . . . . . : Thursday, September 23, 2010 5:38:14 PM
Default Gateway . . . . . . . . . : 181.156.1.254
DHCP Server . . . . . . . . . . . : 181.156.1.254
DNS Servers . . . . . . . . . . . : 181.156.1.254
NetBIOS over Tcpip. . . . . . . . : Enabled

The MAC address is shown above as ‘Physical Address’ : 00-21-BC-14-AC-C0

If the MAC address has been “changed”, you can find out what is being broadcast by using the cmd “getmac”

> getmac

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