A MAC address is a unique identifier for network adapters or network interface cards.

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892 views

Can an Intel 82577LM Gigabit Network Connection be spoofed?

I need to tell someone my MAC address imminently so I can be added to their router, but I am not at my computer. My laptop is a Dell Latitude E6510, running Ubuntu 12.04 with an Intel 82577LM ethernet ...
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1answer
773 views

How to blacklist a problem Wi-Fi access point by MAC address in Mac OS X

So I am a small Mac-user cog in a larger Windows-based network machine. The network here works fine for most everyone else (on PCs), but I have random timeouts and issues with the Wi-Fi. Luckily, I ...
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1k views

Multiple mac address connections from the same device

My internet speed dropped from aobut 90Mb/s to 0.5-2Mb/s. Only one computer seemed affected. So I was been looking through the device list on my Linkysys Smart Wi-Fi router and came across something ...
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220 views

How can I change the MAC address of hosted network?

I am on a MAC-filterd network. I have a pc and a laptop. I started a hosted network on my laptop. The Laptop has Windows 8. I set up a hosted network on this laptop to connect a smartphone. So the ...
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162 views

Why would results differ from trying two different methods to get a MAC address?

While trying to find MAC addresses of networked machines, two different methods were used and different answers were received: Ping the machine name using the command nbtstat -a xxx.xxx.xxx.xxx (x ...
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1k views

MAC address based VLAN: How to get the MAC address of a newly attached device?

I am in a network that determines by the MAC address of attached devices to which VLAN the used switch port has to be set to. For regular devices that use DHCP the MAC address can be simply ...
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3k views

Spoof MAC address in Windows 7: Bypass

I am trying to spoof the MAC address of my new Win7 laptop. To do so I tried specifying an alternate value from the Device Manager which took no effect. I also tried from the registry, as per other ...
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41 views

NIC MAC address is different than it should be

I have cheap Tenda W150M router that is working as a WLAN card in Client+AP mode. The router MAC Address and WLAN BSSID are xx:xx:xx:xx:xx:68(those are listed in the router admin page). Now on my main ...
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250 views

Can I restrict access to the tplink wifi network to anyone except specified set of Mac addresses?

I have the router TP-Link N750 (TL-WDR4300). I'm familiar with the Mac addresses filtering but I need to restrict all user from joining the network not from Internet after joining the network, so ...
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43 views

How can I filter my home network?

I live in an apartment with one roomate. They have a monopoly, as the complex actually has it's own special ISP they offer...and they restrict other, better providers like Verizon, Charter, and so on. ...
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1answer
115 views

Know the MAC address in the network without touching the router

I'm new to network programming and I don't know if this is the right place where to ask. I have a small router with a proprietary control panel (= no openwrt or similar). I'd like to know ...
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116 views

Issues with IP address when changing MAC address

Whenever I spoof my MAC address the WiFi fails to acquire IP automatically and I have to set it manually. My original MAC address is blocked on the network. Please help me, I'm facing IP address ...
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240 views

iPad and Wifi Access point on a MAC restricted network

I'm trying to help my sister get her iPad online in her university halls of residence. She has one ethernet port in her room and there is no wireless provided. I got her a wireless router (which is ...
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277 views

CE interface in Solaris 10 drops mac address (per ifconfig)

I recently installed Solaris 10 1/13 and proprietary TCP PEP software on a new hard drive within an old Sun v210. When the PEP software starts, the Sun's CE0 interface loses its "ether" address, ...
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2k views

The same MAC address twice on network?

Recently the Wifi network at our small company was messed up in a strange way. When I did a arp -i en1 -a I did in fact see the same MAC address listed twice. When I inquired with a ...
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1k views

Automatic rename computer based on mac address

How to automatically rename computer host / name based on it's MAC address? I have 40 PC's and I need a script to rename them automatically at logon after I use ghost. Win7 environment.
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765 views

Linux Mint chooses random MAC address on bootup

Every time I start a machine with Linux Mint 14 installed, the Ethernet NIC chooses a random MAC address to use. Is there a way to disable that behavior?
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61 views

Virtualize MAC addresses on a single physical network interface

Background: I am working with an application that runs on a host machine that mainly identifies clients via MAC addresses (something that I would not like to change). I am attempting to simulate ...
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117 views

How do MAC addresses get burned into devices during manufacturing?

I'm interested in the steps necessary to manufacture an IP-capable device - say an Ethernet card. Manufacturing the hardware is pretty straight forward since all of the devices are exactly the same ...
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101 views

A Printer that has multiple MAC Addresses?

I have a Lexmark printer that for some reason shows multiple MAC addresses when its connected to a switch. Thats so weird. Anybody had the same problem? How can I solve it and how come it has ...
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22 views

internet disconnects after cloning MAC in Ubuntu 14.10

Whenever I connect the LAN cable to my new laptop, there is connection, but the web is not accessible due to MAC mismatch (my old laptop's MAC is registered with my ISP). When I spoof the MAC address ...
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24 views

getmac ERROR: Invalid class

When trying to run getmac from the Windows Command Prompt, I am getting ERROR: Invalid class. As a Windows utility, I'm not entirely sure why it's broken or how to go about fixing it. Can anyone ...
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134 views

Spoof MAC without limitation in Windows 8?

I am able to change my MAC to anything in Kali Linux, but not in Windows? It needs to be changed to 50:b7:c3:3d:1c:b6. I tried using SMAC and no luck. I heard there were limits on what I can change it ...
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87 views

Windows - MAC address whitelist on wired network?

In Windows (XP or 7), is it possible to configure either Windows, a software firewall, or network cards such that the computer will only communicate with specific known MAC addresses (e.g. the MAC ...
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75 views

Two wireless extenders with same mac address…How to assign IP address dhcp

I have two wireless extenders, and they both have the exact same mac address (same make and model) Now, they work fine in the network, I just wanted to know how can I assign them specific IP ...
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292 views

Spoofing Windows 7/8 Mac address with 00: manufacturer?

As I am sure everyone knows starting with Windows Vista, you are not able to spoof MAC address to something that starts with a 00: For a project I am doing I have to spoof it as starting with 00: I ...
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5k views

Can I track the MAC address of my stolen laptop by service tag number?

My Dell Vostro laptop was stolen five days back. Many valuable documents were on it, so how can I trace the MAC address of my stolen laptop? Can the MAC address be traced through the service tag ...
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872 views

Internet Connection Sharing bypassing MAC Filter in Ubuntu Linux

My university gives me an internet connection by Ethernet, DHCP but they have installed MAC Filtering to allow only using my PC. I have a wireless router TL-WR340GD. which has MAC address cloning ...
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17 views

Disabling/Enabling WLAN connection

Question: What is the terminal command behind right clicking on the wireless icon (Ubuntu 15.04) and then unchecking "Enable Wi-Fi" the box? Why am I asking it? macchanger just work for me when I ...
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45 views

Can not bypass MAC address filtering

I add a white list filter by mistake to my wifi modem router, so I want to change MAC address to that IP. I run this command: ifconfig wlan0 down ifconfig wlan0 hw ether xx:xx:xx:xx:xx:xx ifconfig ...
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73 views

QEMU-KVM macvtap nic passthrough with which MAC address?

I want to give a host nic to a guest in macvtap/passthrough mode but, which MAC address I've to use for correct frames inter-transmission? The real address (of physical nic), or the virtual one? ...
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56 views

Windows 10 under VMWare 11 caches MAC address

I have VMWare Workstation 11 and network for VMs configured as NAT. DHCP configured manually so every VM has fixed hostname and IP address. I've installed Windows 10 TP to one of the VMs. Then I ...
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nginx auth_basic for mac address verification

nginx auth_basic for mac address verification Is it done? Do you have examples? thnx location = / { satisfy any; deny all; auth_basic "Restricted"; ...
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368 views

What does “Decloak: (Mac Address)” mean in Airodump-ng

I have Reaver 1.4 on Ubuntu 14.10 and a Realtek RTL8187SE B/G adapter, and I got a message saying: "Decloak: XX:XX:XX:XX:XX:XX (the X's would be letters and number of the MAC Address). What does this ...
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Does my router broadcast the original WAN MAC address when rebooting?

I have a cloned WAN MAC address to connect to my ISP, does anyone know if it broadcasts the original router WAN MAC address during the router reboot process?
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48 views

If I want to spoof my wireless router's MAC address for privacy reasons, how should I pick one?

Like the title says: how do I decide which "random" MAC address to assign to a machine in order to hide the real one? Just entering a random one doesn't feel very... scientific. Thanks.
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Where does the OS fetches the MAC address before encapsulating frames?

packet arrives from application->...Network->(IP encapsulation added here as per IP configuration)->goes down to Data Link Layer Here the Framing is Done and SourceMac and Dest Mac is added for LAN ...
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86 views

Why would someone spoof my MAC address?

well today I updated the version of DD-WRT on my router and started messing around with the WiFi visualizer and noticed that someone is spoofing my routers WLAN MAC address. I know it's trivial to do ...
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46 views

Program to monitor network usage and perform system functions accordingly

Is there a program out there that monitors network usage, and then can execute system network functions upon a specific network change. For instance, I would like to monitor the download amount, once ...
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95 views

Synology DS214se - Possible to find MAC addresses of connections?

I need some help to find the hardware addresses of earlier connected computers. Some detailed log file or something Can i do this somehow ?
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86 views

MAC spoofing error encountered

I'm somewhat new to Linux (using Ubuntu 14.04), and I'm playing around with MAC address spoofing. I had it working for a few days, to where I could go into the command line and use ifconfig to change ...
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457 views

Windows 8 Force MAC Address Spoof

Just to make this short, I've tried almost everything I found on Google to spoof my MAC addres (Registry, SMAC, NetworkAdress in Adapter Settings, etc.) and none worked. This is because of something I ...
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181 views

How to find the MAC addresses of an unsecure network, on Windows, using the easiest steps?

As I try to prove that an insecure network, even with MAC filtering feature, is a bad thing (link here) , I've tried to find out the easiest way to do so. I'm trying to show that it's easy to enter ...
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440 views

Separate MAC Filtering Rules for Each Frequency in Linksys EA2700-RM

I recently bought a Linksys EA2700-RM router for my home. I have set up the 5GHz network, the 2.4GHz network and the Guest network. My 5GHz network is for highest priority devices, the 2.4GHz network ...
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351 views

Change Mac Address on Wireless NIC

Problem I currently use a Intel(R) Centrino(R) Advanced-N 6230 network adapter, and I need to spoof the mac address in order to test security on my network. The problem is that the latest driver for ...
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82 views

Router wont clone Mac address

I have a DX-WGRTR and in the router settings there is an option to clone WAN MAC address. When I tried to clone my computer MAC address the router reboots after 25 seconds but it automatically set the ...
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82 views

Find mobile device on network

I'm trying to write a small program that will poll the network for certain IP addresses or MAC addresses (though MAC doesn't seem to show up past my WAP). My networking isn't very strong but many ...
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777 views

Router changes its MAC Addresses

I constantly lose my Internet connection. After analyzing the problem I found that my router, TL-WR741ND [TP-Link], changes its MAC address by switching through the WLAN's, LAN's and WAN's MAC ...
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795 views

ifconfig won't let me set MAC address that doesn't begin with 00:26

I have an Intel 1000 BGN Wi-Fi card and I tried to set its MAC address to 00:00:de:ad:be:ef, but this didn't work: [root@localhost .]# ifconfig wlan0 hw ether 00:00:de:ad:be:ef SIOCSIFHWADDR: Cannot ...
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Tool for filling the mac address slots in router?

i learnt a linux tool a couple of weeks ago that could send random mac address to the router, thus filling the cam table and after taking all the empty slots could cause a kind of denial of service, ...