Comments on: How to spoof your MAC address in Mac OS X

By: Annie

Annie — Fri, 30 Dec 2011 09:44:44 +0000

My step father blocks my internet during day and only allows me to access the internet for a 2 hour period in the evenings. Will spoofing my mac address allow me to have access to the internet? He blocks only my laptop and iPhone, no one else in the house gets this treatment.

I am running 10.6.8 if that means anything.

By: neo

neo — Thu, 24 Nov 2011 00:23:43 +0000

Tried this on OS Lion. The ether command returns the new mac address… however when i connect to a network only connection timeout ereor comes… any ideas?

By: Petar

Petar — Wed, 16 Nov 2011 11:32:47 +0000

Hello,
I did it, but there is a problem – when I verify the new mac address there is nothing done, the MAC address is the original. I’m using OS-X 10.4.11 and external wi-fi card (RTL) and Realtek WLAN Client Utility.

Can you help me?

Thanx a lot!

By: Donnie Ringeisen

Donnie Ringeisen — Fri, 21 Oct 2011 01:30:49 +0000

I do believe all the ideas you have introduced for your post. They’re very convincing and will certainly work. Still, the posts are too brief for beginners. Could you please prolong them a little from subsequent time? Thanks for the post.

By: Derek

Derek — Thu, 13 Oct 2011 09:08:43 +0000

Change “airport” to “Wi-Fi” for Lion

By: Adam

Adam — Sat, 24 Sep 2011 09:03:25 +0000

This doesn’t work under Lion for me:

#!/bin/bash
#
export PATH=/usr/local/mysql/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
#
#echo ” ”
date
/usr/sbin/airport -z
counter=0
clear
#
MAILVAR=`date`
NUM_FILE=/tmp/Num_File
OLD_ETHER=`ifconfig en0 | grep ether | awk ‘{print $2}’`
#
#

if [ ! -f ${NUM_FILE} ]
then
touch ${NUM_FILE}
echo “0″ >> ${NUM_FILE}
fi
#exit_num=`cat ${NUM_FILE}`
exit_num=0

GET_HEX ()
{
if [[ ${VAR} -lt 10 ]]
then
HEX_VALUE=`echo ${VAR}`
fi

if [[ ${VAR} -eq "10" ]]
then
HEX_VALUE=a
fi
if [[ ${VAR} -eq "11" ]]
then
HEX_VALUE=b
fi
if [[ ${VAR} -eq "12" ]]
then
HEX_VALUE=c
fi
if [[ ${VAR} -eq "13" ]]
then
HEX_VALUE=d
fi
if [[ ${VAR} -eq "14" ]]
then
HEX_VALUE=e
fi
if [[ ${VAR} -eq "15" ]]
then
HEX_VALUE=f
fi

# echo “${HEX_VALUE}”
}

Make_Random_Hex ()
{
for i in {1..6}}
do

VAR=$((RANDOM%15))
GET_HEX

FULL_HEX=`echo ${FULL_HEX}${HEX_VALUE}`

VAR=$((RANDOM%15))
GET_HEX

FIX_I=`echo ${i} | awk -F\} ‘{print $1}’`
#echo $FIX_I
if [ ${FIX_I} -eq 6 ]
then
FULL_HEX=`echo ${FULL_HEX}${HEX_VALUE}`
else
FULL_HEX=`echo ${FULL_HEX}${HEX_VALUE}:`
fi

done
}

Make_Random_Hex

echo “The new randomised Mac Addr we want to change to = ${FULL_HEX}”

NUM_VAL=`echo “${FULL_HEX}” | tr ‘:’ ‘ ‘ | awk ‘{print $1}’`
TESTED_VALUE=kk

if [[ ${exit_num} -eq 0 ]]
then
while [ ${exit_num} -eq "0" ]
do
ifconfig en0 ether ${FULL_HEX}
#/bin/sleep 0.2
VALUE=`ifconfig en0 | grep ether`
TESTED_VALUE=`echo ${VALUE}| awk ‘{print $2}’ | awk -F: ‘{print $1}’`
echo “THE_NEW_NUMBER_WE WANT = ${NUM_VAL} THE_TESTED_VALUE = ${TESTED_VALUE}”
echo “`tput cup 0 1`”

if [ ${NUM_VAL} = ${TESTED_VALUE} ]
then
echo “`tput cup 5 1`”
ifconfig en0 down
sleep 8
ifconfig en0 up
sleep 8
NEW_ETHER=`ifconfig en0 | grep ether | awk ‘{print $2}’`
echo “The OLD ethernet mac = ${OLD_ETHER}”
echo “The NEW ethernet mac = ${NEW_ETHER}”
exit_num=1
echo “1″ > ${NUM_FILE}
exit 0
fi

done
fi

if [ ${exit_num} -eq "0" ]
then
(( counter = ${counter} + 1 ))
if [ ${counter} -eq 356 ]
then
/Users/graeme/KSH-Scripts/test.ksh
#Spiner=XXXX
fi
fi
adammbair13:/ adam$ sudo ./test.ksh
Sat Sep 24 02:01:49 PDT 2011
./test.ksh: line 7: /usr/sbin/airport: No such file or directory

.”test.ksh: line 66: [: -eq: unary operator expected
“/test.ksh: line 66: [: -eq: unary operator expected
./test.ksh: line 66: [: -eq: unary operator expected
./test.ksh: line 66: [: -eq: unary operator expected
./test.ksh: line 66: [: -eq: unary operator expected
.”test.ksh: line 66: [: -eq: unary operator expected
“The OLD ethernet mac = ”ddr we want to change to = e4:d9:36:93:a7:9a:”
“The NEW ethernet mac = ” string2
adammbair13:/ adam$ string1
tr [-Ccu] -s string1
tr [-Ccu] -ds string1 string2
“THE_NEW_NUMBER_WE WANT = THE_TESTED_VALUE = ”
“

By: NightLion | Spoof your MAC address in OSX Lion and Snow Leopard – Quick 3 Step Guide.

Thu, 15 Sep 2011 15:11:29 +0000

[...] Spoof your MAC address in OSX Lion and Snow Leopard – Quick 3 Step Guide. [...]

By: Mulder

Mulder — Wed, 17 Aug 2011 18:50:43 +0000

Sorry, but this doesn’t work for the Ethernet MAC address, although it used to on 10.4.11. I can change it, but then I can’t connect to any web page, and if I reboot, it’s changed back to the actual MAC address.

That doesn’t help anyone, especially those that don’t have WiFi, and cannot upgrade to any other version of Mac OS X.

Spoofing is especially helpful for those who print coupons on the web, since most of the vendors use a system from Fox (as in Fox News) that requires the installation of some software, and then use Java to keep you from saving the file as PDF, and log your MAC address to prevent you from printing more than two coupons.

It would be nice to have a way to spoof the Ethernet MAC address that works again, by letting you load web pages after you’ve done it.

By: Master ksh Coder

Master ksh Coder — Tue, 16 Aug 2011 13:20:42 +0000

Geez guys.

I read all of the above.. it is simple
just run the code below in a terminal.. all will be solved.
..

enjoy

How to use it.. type==> sudo ./test.ksh

Code below.(save the file as test.ksh)
————————————————–
#!/bin/bash
#
export PATH=/usr/local/mysql/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin
#
#echo ” ”
date
/usr/sbin/airport -z
counter=0
clear
#
MAILVAR=`date`
NUM_FILE=/tmp/Num_File
OLD_ETHER=`ifconfig en0 | grep ether | awk ‘{print $2}’`
#
#

if [ ! -f ${NUM_FILE} ]
then
touch ${NUM_FILE}
echo “0″ >> ${NUM_FILE}
fi
#exit_num=`cat ${NUM_FILE}`
exit_num=0

GET_HEX ()
{
if [[ ${VAR} -lt 10 ]]
then
HEX_VALUE=`echo ${VAR}`
fi

# echo “${HEX_VALUE}”
}

Make_Random_Hex ()
{
for i in {1..6}}
do

VAR=$((RANDOM%15))
GET_HEX

FULL_HEX=`echo ${FULL_HEX}${HEX_VALUE}`

VAR=$((RANDOM%15))
GET_HEX

FIX_I=`echo ${i} | awk -F\} ‘{print $1}’`
#echo $FIX_I
if [ ${FIX_I} -eq 6 ]
then
FULL_HEX=`echo ${FULL_HEX}${HEX_VALUE}`
else
FULL_HEX=`echo ${FULL_HEX}${HEX_VALUE}:`
fi

done
}

Make_Random_Hex

echo “The new randomised Mac Addr we want to change to = ${FULL_HEX}”

NUM_VAL=`echo “${FULL_HEX}” | tr ‘:’ ‘ ‘ | awk ‘{print $1}’`
TESTED_VALUE=kk

done
fi

if [ ${exit_num} -eq "0" ]
then
(( counter = ${counter} + 1 ))
if [ ${counter} -eq 356 ]
then
/Users/graeme/KSH-Scripts/test.ksh
#Spiner=XXXX
fi
fi

By: Pax

Pax — Thu, 12 May 2011 09:50:41 +0000

Correct me if I’m wrong, but this is the trick to get free Dropbox space, right ?
As I didn’t want to mess in OSX I used random MAC adresses before booting on a VM of Ubuntu via Parallels. Parallels lets you randomize a MAC adress in the pref of the VM. The only thing you gotta do, is doing it while VM is OFF, and you gotta reboot the VM each time you randomize.

Reply if unclear.

By: Reed

Reed — Wed, 04 May 2011 04:08:40 +0000

After some web searching and trial and error I have figured out how to spoof both ethernet and airport MAC’s for 10.5.8 on my Macbook Pro. Airport must be on but disassociated as explained in previous posts. Ethernet works while you are on or offline, though if online, you will lose connection since your network settings have changed.

For clarification, the first 2 commands show the preset MAC addresses (I obviously censored mine, but you get the idea). Next I spoof the adresses and confirm it worked as I go. First is the ethernet (en0) and then airport (en1).

MacBook33-2:~ mycomp$ ifconfig en0 | grep ether
ether xx:xx:xx:xx:xx:xx
MacBook33-2:~ mycomp$ ifconfig en1 | grep ether
ether yy:yy:yy:yy:yy:yy
MacBook33-2:~ mycomp$ sudo ifconfig en0 lladdr aa:aa:aa:aa:aa:aa
Password:
MacBook33-2:~ mycomp$ ifconfig en0 | grep ether
ether aa:aa:aa:aa:aa:aa
MacBook33-2:~ mycomp$ sudo ifconfig en1 ether ee:ee:ee:ee:ee:ee
MacBook33-2:~ mycomp$ ifconfig en1 | grep ether
ether ee:ee:ee:ee:ee:ee

Hope this helps someone out there.

By: a

Mon, 18 Apr 2011 04:48:32 +0000

> success on 10.6.5.
> not all mac ranges work.
> not sure 5 pair fail is needed.
> all 00 mac may not work for some.

•> sudo ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport /usr/sbin/airport
••>sudo airport -z
•••>sudo ifconfig en1 ether 00:00:00:00:00
••••>sudo ifconfig en1 ether 00:00:00:00:00:09
•••••>ifconfig en1 | grep ether

By: Vinicius

Vinicius — Wed, 23 Feb 2011 15:02:32 +0000

Hi, I did what’s on the page, and pops two numbers like this:
ether 00:1f:5b:3a:a4: 44
ether 00:1f:5b:3a:a4:45

could someone help me, what is the correct mac address
may be by e-mail (vcantalejo@msn.com)

Thanks
Vinicius

By: W

Tue, 18 Jan 2011 23:26:55 +0000

The MAC address is your machines physical address, whereas your IP address is the address of your computer on a network. Spoofing a MAC address won’t change your IP, and vice versa.

By: OseX

OseX — Tue, 18 Jan 2011 21:46:32 +0000

If I type in terminal the following:

[localhost:~] peter% sudo ifconfig en0 ether 123.123.123.123

with the 123.123.123.123 being just an example (not real in my case), but truly being the public IP address shown at http://whatismyipaddress.com

I get an error:

ifconfig: ioctl (SIOCAIFADDR): Invalid argument

What did I wrong?
Thanks.