MAC
A Media Access Control (MAC) address is a hardware address that uniquely identifies each node of a network. A MAC is a 48-bit Address usually represented in hexadecimal format with colons between every 8-bits. For example: 08:00:20:95:fb:83
To find out your MAC address, choose your operating system:
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Linux From a terminal on your linux box, as any user, type the following: /sbin/ifconfig -a |grep HWaddrYou should see something like the following: eth0 Link encap:Ethernet HWaddr 00:80:5F:CB:52:E7 FreeBSD/OpenBSD/NetBSD /sbin/ifconfig -a |grep etherYou should see something like the following: ether 00:d0:b7:bb:6f:f5 Solaris/NeXTStep /sbin/ifconfig -a |grep etherYou should see something like the following: ether 00:d0:b7:bb:6f:f5 Windows ipconfig /allYou should see something like the following: Windows NT IP Configuration Host Name . . . . . . . . . : example.math.ias.edu DNS Servers . . . . . . . . : 192.108.106.49 192.16.204.20 Node Type . . . . . . . . . : Hybrid NetBIOS Scope ID. . . . . . : IP Routing Enabled. . . . . : No WINS Proxy Enabled. . . . . : No NetBIOS Resolution Uses DNS : Yes Ethernet adapter N1001: Description . . . . . . . . : Adapter Name Here Physical Address. . . . . . : 00-08-C7-82-4A-7E DHCP Enabled. . . . . . . . : No IP Address. . . . . . . . . : 192.168.192.253 Subnet Mask . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . : 192.168.192.254 Primary WINS Server . . . . : 192.168.192.252 The MAC Address is called the Physical Address. Make sure you use the Physical Address from the correct adapter, check the line that say's Adapter Name Here to see if it looks reasonable. Do NOT use the PPP Adapter (OS 10.1 and higher) SystemsWired Connection
Wireless Connection
If there are errors or ommisions in this document, please send comments/corrections to help@math.ias.edu. Thank you |