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| Change your Network card MAC address |
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Posted By: Archie |
Posted On:
Monday, August 20, 2007 |
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Media <b>Access Control</b> address, a hardware address that uniquely identifies each node of a <b>network</b>. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the <b>Media Access Control</b> (MAC) layer. The MAC layer interfaces directly with the network medium.Consequently, each different type of network medium requires a different MAC layer. On networks that do not conform to the IEEE 802 standards but do conform to the OSI Reference Model, the node address is called the Data Link Control (DLC) address.
<P></P>
<P><A id=more-181></A>If you want to change your network card mac address you need to use simple utility called mac changer.MAC changer is a utility for manipulating the <b>MAC address</b> of network interfaces</P>
<P><STRONG>Possible usages</STRONG></P>
<P>You’re in a DHCP network with some kind of IP-based restriction</P>
<P>You’ve a cluster that boot with BOOTP and you want to have a clean set of MACs</P>
<P>Debug MAC based routes</P>
<P><STRONG>MAC Changer Features</STRONG></P>
<P>Set specific MAC address of a <b>network interface</b></P>
<P>Set the MAC randomly</P>
<P>Set a MAC of another vendor</P>
<P>Set another MAC of the same vendor</P>
<P>Set a MAC of the same kind (eg: wireless card)</P>
<P>Display a vendor MAC list (today, 6800 items) to choose from</P>
<P><STRONG>Install MAC Changer in Debian</STRONG></P>
<P>#apt-get install macchanger</P>
<P><STRONG>Install MAC Changer in Ubuntu</STRONG></P>
<P>sudo apt-get install macchanger</P>
<P>This will complete the installation.</P>
<P>If you Find your MAC address using the following command</P>
<P>ifconfig</P>
<P>eth0 Link encap:Ethernet HWaddr 00:0C:29:A8:D0:FA<BR>inet addr:172.20.22.35 Bcast:172.20.22.255 Mask:255.255.255.0<BR>inet6 addr: fe80::20c:29ff:fea8:d0fa/64 Scope:Link<BR>UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1<BR>RX packets:7690 errors:0 dropped:0 overruns:0 frame:0<BR>TX packets:6399 errors:0 dropped:0 overruns:0 carrier:0<BR>collisions:0 txqueuelen:1000<BR>RX bytes:4284579 (4.0 MiB) TX bytes:876317 (855.7 KiB)<BR>Interrupt:177 Base address:0×1080</P>
<P>In the above example MAC Address is 00:0C:29:A8:D0:FA</P>
<P>If you want to configure MAC Changer you need to stop the networking services using the following command</P>
<P>For Debian Users</P>
<P>#/etc/init.d/networking stop</P>
<P>For Ubuntu Users</P>
<P>sudo /etc/init.d/networking stop</P>
<P>Now you need to configure your MAC address using the following examples</P>
<P>MAC Changer Syntax</P>
<P>macchanger [options] device</P>
<P><STRONG>Examples</STRONG></P>
<P># macchanger eth1</P>
<P>Current MAC: 00:09:a5:eb:23:f7 (Hansung Eletronic Industries Development Co., Ltd)<BR>Faked MAC: 00:09:a5:eb:23:f8 (Hansung Eletronic Industries Development Co., Ltd)</P>
<P># <CODE>macchanger --endding eth1</CODE></P>
<P>Current MAC: 00:09:a5:eb:23:f8 (Hansung Eletronic Industries Development Co., Ltd)<BR>Faked MAC: 00:09:a5:6f:31:23 (Hansung Eletronic Industries Development Co., Ltd)</P>
<P># <CODE>macchanger --another eth1</CODE></P>
<P>Current MAC: 00:09:a5:6f:31:23 (Hansung Eletronic Industries Development Co., Ltd)<BR>Faked MAC: 00:11:18:5b:3a:1f (Blx Ic Design Corp., Ltd.)</P>
<P># macchanger -A eth1</P>
<P>Current MAC: 00:06:5b:f6:f3:48 (Dell Computer Corp.)<BR>Faked MAC: 00:0d:11:93:0c:4f (Dentsply - Gendex)</P>
<P># macchanger -r eth1</P>
<P>Current MAC: 00:0d:11:93:0c:4f (Dentsply - Gendex)<BR>Faked MAC: 3c:f1:89:f9:1f:ce (unknown)</P>
<P># <CODE>macchanger --mac=01:23:45:67:89:AB eth1</CODE></P>
<P>Current MAC: 00:40:96:43:87:65 [wireless] <b>Cisco</b>/Aironet 4800/340)<BR>Faked MAC: 01:23:45:67:89:ab (unknown)</P>
<P># <CODE>./macchanger --list=Cray</CODE></P> |
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