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Changing NIC MAC addresses

 
TJ_16
Frequent Advisor

Changing NIC MAC addresses

It was suggested to me to change some NIC addresses to the local MAC address to clear some VCS issues. Any one out there know of a way to change the MAC address to the local MAC?

Dual port NIC card is:
Intel Corp. 82546EB Gigabit Ethernet Controller
5 REPLIES 5
Alexander Chuzhoy
Honored Contributor

Re: Changing NIC MAC addresses

If you wish to define virtual Mac address then add a line:
MACADDR=
to /etc/sysconfig/network-scripts/ifcfg-ethx
Steven E. Protter
Exalted Contributor

Re: Changing NIC MAC addresses

The actual MAC address on the card can't be changed. Every once in a while the maker ships a card with a bad mac addy or it loses it. At that point the card has to be replaced. If its built on the the motherboard, it has to be replaced under warranty or replaced with an add in NIC.

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Steven E Protter
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Marco Di Ianni
Frequent Advisor

Re: Changing NIC MAC addresses

For change mac address you can type:

# ifconfig eth0 hw ether deadbeef0001

this command must be run when the network card is NOT active!

Bye!
Justin Burrell
Occasional Advisor

Re: Changing NIC MAC addresses

You might try MAC Changer for linux also. May or may not work with your setup.

http://www.alobbs.com/modules.php?op=modload&name=macc&file=index
Never underestimate the power of stupid people in large groups.
Will Spencer
New Member

Re: Changing NIC MAC addresses

Instructions for changing MAC addresses under most common Operating Systems are at:

http://www.tech-faq.com/data-networks/change-mac-address.shtml