ok I wasn't sure. On Linux it has to be down
Well I also tried it when the ethernet cable was unplugged and it worked ok. Wowzera, can you paste the output of "ifconfig en0" before and after issuing the "ether" command ?
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Is there a way to change Ethernet's MAC address?
- Thread starter Wowzera
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Well I also tried it when the ethernet cable was unplugged and it worked ok. Wowzera, can you paste the output of "ifconfig en0" before and after issuing the "ether" command ?
An interesting thought; it could be that the OP's MAC address is not banned, but simply not on the list of addresses allowed to be on the system. In that case, even if the MAC address is changed, it may not be helpful since he still will not have a 'valid' MAC address.
Yep, I am working on it. I've talked with my teacher yesterday and he said that issue is only with one laboratory, the others accept other computers to plug. He also said I could manage to solve it by myself..
@Tex-Twil
Yes, of course.
Code:
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 00:1f:5b:ec:9f:3d
media: autoselect status: inactive
supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0 ether aa:bb:cc:dd:ee:ff
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 00:1f:5b:ec:9f:3d
media: autoselect status: inactive
supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
macbook-de-matheus-bossle:~ Matheus$It didn't ask for a password because I've typed it some seconds before to write that, but because a mistake I choose to close window and do it again.
Thanks for helping!!
Did you try with the dummy "aa:bb:cc:dd:ee:ff" address ? I know that some ethernet cards don't accept mac addresses which are not valid. Can you try with "00:1f:5b:ec:9f:ff" for exmaple ? Or choose a prefix of one of an existing manufacture
Tex
Tex
Did you try with the dummy "aa:bb:cc:dd:ee:ff" address ? I know that some ethernet cards don't accept mac addresses which are not valid. Can you try with "00:1f:5b:ec:9f:ff" for exmaple ? Or choose a prefix of one of an existing manufacture
Tex
Code:
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0 ether 00:1f:5b:ec:9f:ff
Password:
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 00:1f:5b:ec:9f:3d
media: autoselect status: inactive
supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0 ether 00:1f:43:00:ec:3d
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 00:1f:5b:ec:9f:3d
media: autoselect status: inactive
supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0 ether 00:24:f4:01:02:dd
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 00:1f:5b:ec:9f:3d
media: autoselect status: inactive
supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
macbook-de-matheus-bossle:~ Matheus$I've tried some, none worked
What may be going on ? If it worked for you, must work for me... We may be forgetting a little step.
Thank you anyways for all your efforts!
Didn't work either.
Macbook early 2008, this is the one I use on university.
Didn't work either.
Macbook early 2008, this is the one I use on university.
MAC spoofing most decidedly does work with that model. I have the same one, and I've been able to change the MAC address just fine using ifconfig.
Tell me how so please!
I am running Mac OS X Leopard 10.5.6. I can not change ethernet (en0) MAC address!
What am I doing wrong?
Code:
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0 down
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0 lladdr 00:1f:4d:5b:9c:3d
ifconfig: ioctl (set lladdr): Network is down
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0 up
macbook-de-matheus-bossle:~ Matheus$ sudo ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 00:1f:5b:ec:9f:3d
media: autoselect status: inactive
supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
Code:
sudo ifconfig en1 ether xx:xx:xx:xx:xx:xx
Try this..
/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport -z
This will cause the Airport indicator to go "inactive", but not turn off the wifi.
ifconfig en1 lladdr xx:xx:xx:xx:xx:xx
And then select the wifi.
Here is the rub. I don't think it will allow you to spoof another Apple. Several mac addresses I tried didn't work before I tried something vastly different and it just worked.
/System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport -z
This will cause the Airport indicator to go "inactive", but not turn off the wifi.
ifconfig en1 lladdr xx:xx:xx:xx:xx:xx
And then select the wifi.
Here is the rub. I don't think it will allow you to spoof another Apple. Several mac addresses I tried didn't work before I tried something vastly different and it just worked.
Any news on that topic ? I've just found this software so you might give it a try : http://www.versiontracker.com/dyn/moreinfo/macosx/33101
Oh, I already tried that, does not work for en0 either.
It was the first thing I tried.
Thank you very much!
It would be great if someone with the same revision of the MBP could try also.
Which exact revision of your MB do you have ?
Which exact revision of your MB do you have ?
MBP en0 MAC address change works
The change works (in 10.5.7) - I tested the following sequence:
sudo -s
ipconfig en0 lladdr 00:11:22:33:44:55
then test the change not by looking into preferences but do a
ipconfig en0
it will list more than you wish but it shows the new MAC address
The change works (in 10.5.7) - I tested the following sequence:
sudo -s
ipconfig en0 lladdr 00:11:22:33:44:55
then test the change not by looking into preferences but do a
ipconfig en0
it will list more than you wish but it shows the new MAC address
Yay!
Thanks it worked!
Btw, it's ifconfig instead of ipconfig, was a mistake of Julian. So if you have the same question, use ifconfig, not ipconfig.
If no other machines can connect to the 'net from that ethernet connection except the university's PC, then it sounds like it has nothing to do with your machine and its MAC address, and everything to do with the university's network security.