Airport Extreme changing MAC address

I have a very frustrating situation. One of the UFO airport extremes on our network is spontaneously changing it's MAC address. In the server logs, there is a message that IP address "xxx.xxx.xxx.xxx moved from MACaddress1 to MACaddress2". The IP address is for the airport base station and one of the MACaddresses is the WAN port of the of the base station. There are times when the MAC address changes back and forth several times in a span of a few minutes. Needless to say, this is causing severe problems with our wireless network.
I have flushed the routing table on our servers. I have done a hard reset and reconfigured the base station.
Let me know if more information is needed.
Any assistance would be greatly appreciated.

cdated, Welcome to the discussion area!
Since there is no way to change the MAC addresses used by theAirPort Extreme base station (AEBS), I would suspect that another device is acquiring/using the AEBS's IP address.
Have you tracked down the device/port using this 2nd MAC address?

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Can't change MAC address of my wireless card on Windows XP

Dear Forum Members,
I have recently bought a notebook, Lenovo IdeaPad G550L (I haven't found section for the G series here on the forum) and would like to use its WiFi adapter (BCM4310 according to Everest) with explicitly changed MAC address. I installed the recommended driver, available from Lenovo's website, version 5.10.38.14. I tried the common way to change the MAC address, went to Control Panel -> Network Interfaces -> Broadcom Wireless Network Adapter -> Configure... -> Advanced -> Locally administered MAC address, and changed it to a different address (without ":" or any separator characters). Unfortunately this common solution won't work at all. Although, no error messages are produced when changing it (so it seems successful) my wireless router shows me the original MAC address of my integrated wifi card. Tried to restart my computer, my router, everything.
* Tried different drivers, downloaded a driver from HP which had a separate wireless configurator, Broadcom Wireless Utility. It worked like the driver from Lenovo (except this one hasn't got the utility), but I was still unable to change my MAC address.
* Tried a different driver from SoftPedia, version 5.10.79.14 (this is newer than Lenovo's), it didn't work either.
* Tried Nathan True's MACShift utility. It seemed to change the MAC address, but my router showed the original, so it didn't.
* Tried to look for official Broadcom drivers on www.broadcom.com but found nothing for BCM4310.
* Finally, I booted my alternative OS, the latest Ubuntu Linux, and used the kernel driver b43 for my wireless adapter. I tried to change my MAC address using the command ifconfig wlan0 hw ether .... and connected to my network. It worked, my router showed the changed MAC so the hardware (or the firmware) is capable of doing this by the right driver/firmware.
I tried to address Broadcom with the issue, sent them a letter like this post they replied that they are not competent, they wrote the following (I guess this was an automatically generated message because it got back in 10 seconds ) from [email protected]:
"As the chipset supplier, Broadcom provides driver support to our customers - the manufacturers of wireless devices - that ultimately provide products to end customers, such as wireless LAN vendors, cable modem vendors, and notebook providers. It is up to these manufacturers to provide product-specific drivers and software support to their end customers. Please contact the manufacturer of your wireless device for their current drivers"
Then I addressed Lenovo with the problem, their answer:
"Dear ******,
Thank you for contacting Lenovo, the makers of ThinkPad and ThinkCentre products. As I understand, you have purchased a Lenovo IdeaPad G550L and would like to use its WiFi adapter (BCM4310 according to Everest) with explicitly change MAC address.and you would like to know is there an official driver for Windows XP that allows you this basic feature like b43 in Linux. We apologize,Please do speak with our Idea pad technical Team at 877-453-6686 Option 1-2-1-2 for further assistance.
If you have further questions or concerns, please feel free to contact us at 866-42-THINK (84465) option number 2. We will be happy to assist at that time.
Once again, thank you for contacting Lenovo.
Sincerely,
Lenovo Websales/CustServe"
So this means I should call them and spend extra money for phone bill of international calls because of their fault of providing a basic feature that is to be expected from every single wireless card in the market. Should I believe that a guide over the phone is more efficient than a step-by-step solution or a link to an alternative driver? I'm getting kind of disappointed. At least they have understood (or copy-pasted) my problem, dutch comfort though.
Any ideas? Anyone experienced the same problem and solved it? Is there an official (or even unofficial) driver for this device for Windows XP that allows me this basic feature (like b43 in Linux)?
Thanks in advance,
str4ngS

Yes, I have posted this thread to different forums after I realized that Lenovo "customer care" is not likely to help me out and even wirelessforums.org members couldn't come up with any ideas for days, that's why. I have already written that helper applications like SMAC (or etherchange or macshift) don't work, because they do the same thing in the system as I change it in the driver panel, so they use the same method which simply does not work.
Locked? Definitely not. If yes, why can I change the MAC of my adapter under Ubuntu Linux using b43 open-source driver if it's really locked? Or you mean it's locked from software, because Lenovo or Broadcom didn't want their users to change their MACs or they just forgot to release a fully-functional driver? Well, then I would like to have a driver in which it's not locked, because this is a basic feature of my adapter of which the hardware is capable.
I have already contacted Broadcom, see their (automatically-generated) answer in my initial post, but I will try to do that again with more foresight.

Changing MAC Address

Recently i have been trying to change my Router's MAC Address. I have a WRT54g v.3. I have done it before where i had unplugged the internet cable going from the wall to the modem. I saw the change on the 192.168.1.1 status page. And i noticed with a proxy and the new changed MAC address i was able to get into gaming servers i hadn't been able to before because my IP was banned.
Now when i try to change my MAC address, it doesn't seem to change on the router stautus page like it did once before. I'm sure that it's possible to concel my identity of my old IP and get a new IP (through a proxy), many people do this for security reasons so i'm hoping linksys products can offer some kind of security by doing this.
btw, sorry about the name, if it's possible can it be changed to Joe. Thanks guys.

Your MAC is "stuck" to that router, you need to spoof it. Google it.

I would like to change Mac Address of Ethernet only without card change

I would like to change Mac Address of Ethernet only without ethernet card change.
Please let me know how to change Mac Address.
It's need to keep internet security.

I question why you want/need to also, but it can be easily done...
http://osxdaily.com/2008/01/17/how-to-spoof-your-mac-address-in-mac-os-x/
http://whatismyipaddress.com/change-mac

How to change mac address on mac

i'm sry i'm not sure if this is the right section or not but yeah.... nyways does anyone know how to change mac address on a macbook?

If you have not updated your OS you can use the following command.
sudo ifconfig enX ether xx:xx:xx:xx:xx:xx
You will need to replace the X with your network number and the xx:xx:xx:xx:xx:xx with the mac you want to have.
Then run
sudo ifconfig enX down
sudo ifconfig enX up
This change will last till your next reboot.
cheers
NOTE: This is not working in 10.5

How to change mac address on time capsule

Hi there,
How to change mac address on time capsule?

There are routers that allow you to create/clone a mac address to whatever you like. Since many companies use the mac address to 'register' a unit connected to it's system, you usually just have to let them know you've changed your router and they will reset your system to accept connections from the new device.

How to change mac address on wrt54g router

How to change mac address on wrt54g router?

are u sure u wanna change the MAC of the WRT54G ? it's not possible....you can however clone the MAC address of your PC onto the router...depending on your ISP.

Airport Extreme No IP Address

Airport Extreme No IP Address & Self Assigned IP Address Issue, RESOLVED:
Re: Airport Extreme IP Address Issue
After hours of trying everything else, this worked!!!
From: Comcast Networking/Router/Wifi Gateway:
Re: Airport Extreme IP Address Issue
11-20-2012 07:11 PM
MyComputerGuyJo:
I just wanted to add what Apple Support walked me through. Worked perfectly. Similar to some of the posts here. This assumes you have finished the setup of the Airport using DHCP to obtain the IP automatically from Comcast and it says the IP is invalid.
Power off\on Sequence
1, Power off Comcast Modem. Remove Battery back up, if it has one. Disconnect the coax cable.
2. Power off Airport Extreme
3. Let both sit for 3 minutes.
4. Reconnect coax cable to Comcast modem and replace battery and power up.
5. Wait a minute or two to make sure the Comcast modem is completely up and then Power on the Airport Extreme.
(When AP asks for DNS, Type in both addresses below)
Re: Airport Extreme IP Address Issue
11-01-2012 03:07 PM
Freyfisher: I had the same problem whenn I switched to the Airport Extreme yesterday. Here is what I did:
1: uplugged modem for 30 sec. and detached all ethernet cables. Plugged back in and reattached airport extreme cable after all lights were solid on the modem. Then, I went into Airport Utility and selected, "Base Station"> "restore default settings". Then" Base Station"> Restart. Then go through setup assistant again. If no luck, try setting IPv4 to 10.0.1.2, subnet to 255.255.255.0, router to 10.0.1.1. IPv6 set to OFF if having trouble. DNS adresses: 75.75.75.75, 75.75.76.76, search domain hsd1.ST.comcast.net where "ST" is your two-letter State abbrev. Hope this helps someone....

I have also looked through other threads about this same problem, but none of the solutions (e.g. posts by Tesserax, followed to the letter) so far have worked.
Here are other things I have tried:
1. Called Cox to have them reset my modem, internet works through Ethernet directly from the modem
2. Downgraded AEBS firmware to 7.6.1 (oddly enough, now I cannot for the life of me update the firmware back to 7.6.4, always says cannot connect to update server)
I ran through the various solutions from this thread: "No DNS servers" and "Internet connection" problems with Comcast?
Still getting that pesky blinking amber light.

Change MAC Address On AirPort Extreme

I'm using the latest Apple AirPort Extreme 802.11n (Apple Part Number MB763AM/A and Model A1301 as noted on the box). I am currently using Firmware 7.5.1. I haven't yet updated to the latest AirPort Base Station Firmware 7.5.2.
Is there a way to change the MAC Address on this device? The reason I ask is because I use cable Internet and releasing and renewing the IP Address on cable never works. You're basically stuck with the same IP address for months on end unless you leave your connection off for at least 72 hours or more (DSL out here works differently - you get a new IP Address immediately after releasing and renewing).
I don't like using the term "spoofing" as it sounds as if you're trying to do something devious (which I'm not) but I just don't like having the same IP Address for months on end since I don't think it's wise for security reasons.
I'd be interested in knowing if there is a way to change the MAC Address of my AirPort Extreme, perhaps using a third-party utility of some sort, perhaps through the Terminal or maybe the new firmware update allows you to finally do this?

Is there a way to change the MAC Address on this device?
If you are referring to the MAC address of the AirtPort Extreme, it is not possible to change this.
You're basically stuck with the same IP address for months on end unless you leave your connection off for at least 72 hours or more (DSL out here works differently - you get a new IP Address immediately after releasing and renewing).
The IP address you are referring to here is assigned by your service provider. The AirPort Extreme has no control over this.
I'd be interested in knowing if there is a way to change the MAC Address of my AirPort Extreme, perhaps using a third-party utility of some sort, perhaps through the Terminal or maybe the new firmware update allows you to finally do this?
Sorry, not possible.

Changing MAC address (spoofing)

Hello,
I want to change the MAC address on a Mac Book Pro running OS X Leopard utilizing the command:
+sudo ifconfig en0 lladdra 00:11:22:33:44:55+
Even though the command does not give a warning, nor an error message, the MAC is not changed. In Tiger, it the same command did just fine.
How do I enable MAC address Spoofing on OS X Leo? Is there any parameter to send to the Kernel?
Mh.
For somewhat ever reason, MAC address spoofing for the wireless interface (en1) still seems to work!?
Makes me fell confused:-)
Help strongly appreciated!
Thanks,
Chris

This is how it works on my machine. Note the change of MAC address and because I am using DHCP it changes the IP address also. I have changed the MAC address in this info so as not to use my real one. So I am now running on the new MAC address. It will revert to the original on reboot, you would need a script to change it every time you restart the computer. Not sure why but this does not work on the airport.
This is a nice exercise but why do you would you want to change it?
regards
Last login: Tue Oct 27 13:42:53 on console
Computer-name-iMac:~ username$ ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1492
inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
ether 00:1e:c2:aa:bb:06
< cut>
Computer-name-iMac:~ username$ sudo ifconfig en0 lladdr 00:1e:c2:aa:bb:07
Computer-name-iMac:~ username$ sudo ifconfig en0 down
Computer-name-iMac:~ username$ sudo ifconfig en0 up
Computer-name-iMac:~ username$ ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1492
inet 192.168.0.3 netmask 0xffffff00 broadcast 192.168.0.255
ether 00:1e:c2:aa:bb:07
media: 100baseTX <full-duplex,flow-control> status: active
<cut>
Computer-name-iMac:~ username$

Airport Utility and MAC addresses - Leopard

Hello,
I recently upgraded to Leopard from Tiger, and cannot stress how much I hate this new Airport Utility. It's like Apple tried to simplify the process so much so that it is bordering on extremely annoying. My biggest problem is the removal of the ability to import/export MAC address access lists (.txt file). Lately, I've had to hard reset my AirPort Extreme and Express (as WDS) base stations a few times due to problems, and let me tell you, re-inputting 14 MAC addresses one by one into each base station can be pretty annoying due to the time it takes...especially when all I had to do before was import it from my documents folder.
Why was this feature removed...? I just don't get it. It's such a simple thing and makes life so much easier. I was wondering if anyone knows a way around this? Is it possible to use or install the Aiport Admin Utility from Tiger onto Leopard so that can get this feature back?
Many thanks.

You can download Airport Admin Utility 4.2.5 from Versiontracker: http://www.versiontracker.com/dyn/moreinfo/macosx/15748
It's supposed to run under Leopard. My version (4.1.1) runs just fine for me but I stopped using it after Airport Utility came out. I didn't notice they removed the MAC import / export feature until reading your post.
Edit to add: You might like this one too:
Airport Management Utility 1.0
http://www.macupdate.com/info.php/id/14758
Message was edited by: John Galt

Airport allows deleted MAC addresses on network

Am I misunderstanding Airport Security and timed access? I've deleted Mac addresses from devices previously on my network, but the devices are still able to join the Airport network again. (I have not changed the password.) I thought this set up required the device to be "on the list" in order to share the network. Is it only about the password?
Thanks for any advice.

Timed Access can be a bit tricky.
It helps to remember that the default under Timed Access will allow all devices unlimited access to the network. Double click on the default setting and a window will open with more details.
If you want to restrict this to certain devices, you must first change the default "rule" to not allow any access.
Then, list each device separately that you want to connect along with the "rule" or allowed connection times for that device.

Change MAC Address

How do you change the MAC address in Leopard?

I've found that http://spoofmac.com works great in Leopard... for spoofing the AirPort MAC address. Not so much for the ethernet. It seems that something changed in Leopard and I haven't seen any information about spoofing wired MAC addresses and success under Leopard.
(A legitimate reason to spoof a MAC address: I'm trying to get two ports in my apartment swapped from the student subnet to the faculty subnet. The net admin has no idea which cables are involved and wants to trace MAC addresses. I've got a couple of routers plugged into the ports... but no way of getting the routers to go through the web forms to register with our student ResNet and therefore no way to get the routers (and their MAC addresses) out of their ResNet jail, and make them traceable so I can get these ports swapped. So... I'm trying to spoof their MAC addresses on a machine that can go through the web forms to get those MAC addresses out of jail. Unclear if spoofing the MAC addresses on the wireless will suffice. Ay yi yi.)

Airport Extreme missing IP address

I have never had so much trouble with anything from Apple before. Then again I am not good at networking. I have set up the AEBS as per the instructions using Airport Utility but I get an error saying the IP address cannot be found. At the moment I am using an Alcatel modem which is shared through a Belkin wireless router. I've got 2 macs and a pc linked to it via ethernet and a laptop and another imac G4 linked to it wireless. I upgraded to the AEBS to try get a better signal strength around the house and to share the printers. However, I am making no head way at all. If some one knows of the exact fix, please help. Thanks

Hello The Swagman. Welcome to the Apple Discussions!
Is your intent to replace the Belkin wireless router with the new 802.11n AirPort Extreme Base Station (AEBSn), or as an addition to the Belkin?

AirPort Extreme LAN IP Address, where?

I open the AirPort utility and over the AirPort Extreme you get the list of computer connected wireless, but what about the wire (LAN Ports) I could not see any of the 3 computers connected. How or where its possible to fine the computers IP address connected trough the LAN Ports? I mean the DHCP List for the wire and wireless divice.
AirPort Extreme 7.6.1
AirPort Utility 6.0

i just set mine up right now...
open airport utility...manual...internet...DHCP... then change to the IP you like. i set mine to be DHCP range of 192.168.0.100 to .150 and AE set itself to 192.168.0.1

Airport Extreme changing MAC address

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