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

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992 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
2k 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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302 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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1answer
3k 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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1answer
164 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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1answer
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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1answer
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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1answer
98 views

wireless adapter mac address changewhen there is no 'Network address' option on 'Advanced' tab

How can I change the wireless adapter mac address when there is no 'Network address' option on 'Advanced' tab. I have followed the steps Device manager-> Network adapters -> properties -> Advanced ...
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106 views

Strange MAC address on Wireshark screen

I trying to see Wi-Fi (802.11) packets through Wireshark. Here's information of my wireless interface: $ ifconfig wlan1 Link encap:Ethernet HWaddr c0:f8:da:21:ce:68 # and so on blahblah ...
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247 views

Hyper-V physical NIC MAC and virtual switch MAC

Can this situation lead to a conflict of MAC addresses? I used before Windows 8.1 and Server 2012 R2 to setup VM environments several times already, but now I'm doing it by hand (meaning Powershell), ...
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354 views

Get users Mac address if connected to WiFi network (MikroTik)

I would like to log the users Mac address to a database hosted on a web server. I was wondering if there is a variable I can use like for example $mac-address which will replace it with the users mac ...
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65 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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1answer
595 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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1answer
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
133 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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1answer
210 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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1answer
281 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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1answer
328 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

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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859 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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42 views

Why does ConnMan report my MAC address as all zeros until I restart it?

ConnMan (Connection-Manager) reports my ethernet adapter's MAC address as 00:00:00:00:00:00. However, if I restart the ConnMan service using $ systemctl restart connman.service it subsequently ...
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202 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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112 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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56 views

Can't connect after changing my wireless card mac address

I've tried to change my wireless card's mac address but it's not working. I did it using TMACv6 (Technitium), MacMakeUp and the registry by following this tutorial but I always have the same issue(s) ...
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16 views

Router reports different MAC address than iwconfig

The address returned by iwconfig is nearly the same - the first number is off by 2 and the last by 1. Does anyone know why I'm getting a different result depending on where I look? I happen to know ...
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50 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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91 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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184 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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100 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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88 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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322 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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6k 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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954 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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Networking not working due to MAC address in VirtualBox Ubuntu guest?

I have an Ubuntu VirtualBox VM guest under a Windows 10 host. At home I can connect to my wireless network and see the internet if I use bridged adapter, but not NAT. With NAT Ubuntu says I'm ...
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33 views

Changing MAC address on Virtual Machine

Running linux on virtual box with Windows 10 as a host. I want to edit the mac address on linux and was wondering if a network admin would see the spoofed linux mac or my Windows one? Would I have to ...
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36 views

how can I have my bash script detect mac filtering

I have my own hacking lab with old computers and routers. I hooked up my tp link mr3040 openwrt router via ethernet and have it as its own router on the network. I thought, "if mac filtering is on, ...
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29 views

Can not connect to internet after changing locally administered address

I am following this tutorial to change MAC adresses. It works when I do this with windows 10 pro on real hardware. However when I use Windows 10 Pro in a virtual box VM I run into probles. After ...
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48 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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75 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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177 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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848 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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62 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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671 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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226 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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529 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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424 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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85 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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86 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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885 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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857 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 ...