Vulnerability Development mailing list archives

changing MAC address


From: buanzox () USA NET (Arturo Busleiman)
Date: Wed, 29 Mar 2000 11:23:23 -0300


This is question regarding an old thread.

as an example, under linux, as root:

  ifconfig eth0 hw ether 00:aa:23:ce:3a:11

changes the mac address of eth0 to 00:aa:23:ce:3a:11, iirc.

        [root@machine /root]# ifconfig eth0 hw ether 00:aa:23:ce:3a:11
        SIOCSIFHWADDR: Device or resource busy

why does this happen? under which circumstances can I use ifconfig for
that purpose?

*> Panic? My kernel doesn't panic! We are doomed! DustDustDust!!!!
*> Get PGP KEY: use pgpk -a hkp://horowitz.surfnet.nl/buanzox () usa net
*> System Fork BBS, en Argentina! (5411) 4799-2510 Dedaparamaxxaginos rules!


Current thread: