如何修改mac地址How do I modify the MAC addressHow to modify the Mac address -modify, Mac-North network-ITwave
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How do I modify the Mac address?
Http://www.enorth.com. cn 2008-02-22, 15:55
Vista modify the network card MAC address, easy to defend ARP
attack 07-09-03
How to manually modify the MAC address of the network card underthe Windows system [graph] 07-03-15
I. The use of the MAC address
The MAC address is fixed in the network card and the MAC addressof each network card is different. Network card in theproduction process, the factory will burn a group of numbersin its EPROM, this group of figures, each card is different,this is the network card MAC (physical) address.
Because of the uniqueness of the MAC address, it is primarilyused to identify the user' s identity in the network. For example,ADSL Internet, telecom used it to confirm your billing, on thenet; in the campus network, MAC address can also be used toidentify the user. For a formal user in campus network, its MACaddress will be registered on the server side, if you are theillegal user, the server is not your network card MAC address,so that when you try to connect to the Internet, the server willimmediately recognize you, keep you connected to the network.Two and MAC addresses can be modified
In some situations, such as pretending to be an official userin the network, you need to modify your network card MAC. Tomodify the MAC address, you can be realized by hardware method,namely the use of program to modify the card provided by themanufacturer to burn the card EEPROM, although it is feasible,but the risk is very big, the operation is complicated, even
if you have a lot of experience, but also inevitably lead toerrors in operation.
In fact, you don't have to burn the MAC address in the networkcard at all. You know, when windows is installed, itautomatically reads the MAC address from the network card andstores it in the registry for later use. When the data istransmitted in the network, the data packet from the networkcard issued requires a source MAC address, the MAC address isread from the registry (not read from the card) , so long as youmodify the registry MAC address, is equivalent to the changein the EEPROM card MAC address the actual effect is exactly thes ame!
Three, modify the registry MAC method
1, using software modifications
Recommend a tool, K-MAC, very easy to use, small and convenient,calledMAC address modifier, Baidu, Google, it is easy to find.Here' s the link, too. You can try it, but you don't have muchhope for CSDN' s system. . . . . .
2, modify in the network card property
If your network card uses RealTek' s RTL8139 chip, you can modifythe MAC in the network card property, so that the MAC addressin the registry will change together, as follows:
In the Win2003/XP/2000 menu, click"start"/settings/controlpanel, double-click the system, click the "hardware" / device
manager, expand the network adapter in device manager, rightclick to modify the MAC address of the network card, select"properties"; click the Advanced tab, in the "property" next,click Network
Address project,
Under the "value" on the right, enter the value of the MACaddress you want to specify (for example, 020202020202) . Notethat you want to enter 12 digits or letters consecutively. Afteryou restart the computer, the changes will take effect. As forthe MAC modification method under Win98, it is similar to theabove method.
If you want to change the MAC address in the registry toWin2003/XP/2000 as it is, then you can choose "Network""Address", select the value on the right as "no", and thenrestart. "Under Win98" is "select", "no"".
3, modify in the registry
For non RTL8139 chip network card, you can directly modify theregistry of MAC, note: modify the registry, you must firstbackup the registry.
(1) Win2003/XP/2000
Click Start /run, enter regedit, open the registry, and locateto HKEY_LOCAL_MACHINE\
SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC 1-08002BE 10318}
\0000, 0001, 0002, and other key keys, to find the contents ofDriverDesc, to understand the network card using which primarykey (for example, 0001) , if the primary key under the paramsentry, then the primary key is also used by the network card;For example, the card uses 0001 keys, so we select it, builta string of items on the right-hand side of (named
NetworkAddress) , double-click the input string, you specifythe MAC address value (note should be continuous numbers orletters, 12 bits with no - No. ) ; in 0001 under the NDI\Add a Zijian params (called NetworkAddress) , select the sub key,add a string named default inhis right, the key is the revisedMAC address, the same with the above numerical changes afterthe restart.
(2) Win98
Click on the "start / run", type winipcfg of your choice tomodify the network card MAC address and record the value; thenclick the "start / run", type regedit to open the registry,HKEY_LOCAL_MACHINE\System\Current ControlSet\
Services\Class\Net, the "0000", "0001", "0002" and other key;from the "0000" key click on the start, in order to find thekeyunder the"DriverDesc"key, until you find the just recordedMAC address;
For example, the card uses 0001 keys, so we select it, a newseries in the right name for networkaddress, and thendouble-click the string, enter a new MAC address value (noteshould be continuous numbers or letters with no -No. 12 bit) ;finally restart the computer make modification effect.4 and Linux systems
If your system is Linux, you want to change the MAC address inyour system (for example, to 020202020202) . The method is: use#ifconf ig
Eth0 down disable the network card first, otherwise you willreport the systembusy and cannot change. Then use ifconfig eth0HW ether
020202020202 can.
If you want to permanently modify the MAC address in your system,you can do this: add the following three lines in
/etc/rc.d/rc. local (and add the following three lines in/etc/init.d/network)
Ifconfig eth0 down
Ifconfig eth0 HW ether 020202020202
Ifconfig eth0 up
Four, have the MAC address been changed?
If you want to know if the MAC address in your system has beensuccessfully modified, you can do this: restart your computer(not necessary) , and at the command prompt, enter theIPconfig/all command, so Physical
Address will display an address on the right. You can check tosee if MAC was successful.
Editor: Liu Jun skills network
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Please be civilized, reasonable, and comply with the relevantregulations, after registration comments. User comments 3,check all
Only registered users in northern China can comment. . . . . .Username: Pas sword: remember
[5087281] Tianjin netizen: comments at 17:21 2011-01-13:good
[5068382] Hubei netizen: comments at 15:41 2010-12-13:Broadcom can' t change it
[788664], Hubei province netizen: my comment at 14: 182009-09-25:
Well
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