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

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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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What happens to the router's MAC address once the packet is forwarded into the Web?

What happens with link layer LAN Ethernet header data once the once the frame reaches the main home router and is forwarded to the first network core router? Routers are network layer devices and ...
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Change MAC address of “VirtualBox Host-Only Ethernet Adapter” (on host)

When I installed Oracle VirtualBox, it created a network adapter on my host system called "VirtualBox Host-Only Network". According to ipconfig /all, this virtual network adapter has the MAC address ...
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How to know if a network is locked by MAC address

If I unplug a internet cable from another PC and plug it in my laptop, but it says no internet connection. Then I've been told that the network restrict certain MAC address. My question is that is ...
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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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can you allow only Ethernet packets destined to a certain MAC address through a network adapter?

I would like to transmit UDP ethernet packets from my PC to custom hardware (of known MAC address) which is directly connected with an ethernet cable using no switches. Different services on the PC ...
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19 views

Is there universal way to check mac&ip for multiple printers?

As in title, is there any good way to check mac and ip addresses on multiple printers without connecting to all the printers. Running Windows 7 on my workstation.
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33 views

Windows ARP multiple network interfaces [on hold]

I am learning about networks and just learned ARP (Address Resolution Protocol). On Windows there is a nice command line tool named arp. Now if I execute arp -a it prints 3 tables with IP → MAC ...
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Blacklisted MAC address for modem

I currently lease a router for High Speed Internet from Comcast. I have just purchased my own router online from Ebay to avoid monthly rental charge. The ebay-purchased router is the same make and ...
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How to generate a valid random MAC Address with bash shell

How can i generate a valid random mac adress with bash. The first half of the adress should always stay same like this 00-60-2F-xx-xx-xx just the x value should be generated random?
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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 non-...
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705 views

How to share network connection (without mentioned issues) between two computers with the same MAC address?

Well, I'm using a network connection where IPs are provided by DHCP locked with MAC addresses of the machines. As there are a lot of computer and other devices connected, there isn't enough addresses ...
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What does `Type: IP (0x0800)` in the Ethernet II part of a ping packet mean?

If I ping to another pc in my network I send a packet that consists out of an ICMP part, a IPv4 part and a Ethernet II part. I can see this using the packet analyser 'wireshark'. Now the Ethernet II ...
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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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1answer
31 views

How many MAC addresses can a single PC have?

Each NIC (wired, wireless, etc) on a computer has a different MAC address. Given that a computer can have more than one Ethernet card (or whatnot), and ignoring the fact that some devices can modify ...
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71 views

How can I find the real MAC address if it has been changed?

One of my neighbors managed to get my credentials for ISP login and used my Internet connection without permission. I talked to the ISP about the unauthorized data use and they told me the MAC address ...
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64 views

OSX - Automatically spoof Mac Address when disabling-enabling Wi-fi

I'm running OS X El Capitan. I set up a script at system startup that automatically spoofs the mac address. The thing that I actually want is a background process that automatically changes the mac ...
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4answers
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What happens when two computers on the same network have the same MAC address?

I was reading an article on WEP cracking, which said that filtering MAC addresses was not enough, since there are tools to change what the computer reports as its MAC address. This made me wonder ...
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Obtain MAC Address from network printer via CMD

I'm trying to find the MAC address for my network printer using cmd. I've tried using nbtstat -a (ipaddress) and it says host not found. But the IP works when I ping it. Is there another command ...
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What is a MAC address, and what does it reveal about me?

Does my MAC address list my name, ect? How do I find out exactly what the MAC address tells me? I know it's the "physical address" of my laptop, but what exactly does that mean? This is what my MAC ...
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How do I locate the MAC address of my computer?

I am unable to locate the MAC address in a new computer with Windows 7. I've tried ipconfig /all in the console to which I got no items match your search. I also tried getmac. A screen flashed very ...
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Why would my router have different MAC addresses for IP and IPv6 transactions?

Today I was using tcpdump and I noticed my computer was having IPv6 traffic with a particular MAC address that I could not match with an IP using nmap or arping. After looking at the tcpdump logs a ...
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Why do we need IP addresses to communicate within the local network segment?

Because MAC addresses are only usable across the local network segment, we use IP addresses to communicate with other segments via routers. Meanwhile, for local targets, ARP is used to translate IPs ...
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How to find the wireless MAC address (aka BSSID) of any wireless access point

I have aircrack-ng 1.2 beta 3 and I wanted to know how I can find the wireless MAC address (aka BSSID) of any wireless access point with aircrack-ng (or any other program). I am currently running ...
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Does deauthenticating MACs on AP affect non-deauthenticated MACs on the same AP?

In my attempts to learn more about infosec, I have started a small initial project. greedy-mac on Github A linux shell script that continously deauthenticates all MACs on a given AP except for the ...
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how to solve confusion mac address due to USB Ethernet on system

I am using a packet analysis solution program that licensing certification based on Mac address. When I insert USB Ethernet card, licensing certification often breaks off. So.. I think that the ...
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What's the difference between wlan.sa, wlan.ra, wlan.ta and wlan.da?

Tshark/wireshark (CLI) has several fields to display for WLAN, including these four (+ description from manual): wlan.sa: Source address wlan.ra: Receiver address wlan.ta: Transmitter address ...
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Does a router have a unique MAC address? Is it detectable by a website? [duplicate]

I found somewhere on the internet that routers also have a MAC address. Is it true? If so, how can I make it undetectable?
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Change MAC address of Intel(R) Dual Band Wireless-AC 7260

I tried to follow the instructions here, but my card doesn't seem to have that option. Is there another way to do this?
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How can a website recognise a multiple account usage? [closed]

I would like to discuss which are all the possibilities for a browser game to detect whether a registered user has multiple accounts. With "multiple accounts" is named the practice of one single ...
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2k views

How to change MAC address on Mac OS X 10.7.3 Lion?

I'm trying to change the MAC address for the interface en1. ifconfig Output: lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 options=3<RXCSUM,TXCSUM> inet6 fe80::1%lo0 ...
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How can a WiFi router recognize MAC address change of a connected device?

My teen son and I are playing a hacking game. I've installed an WiFi router with parental controls, MAC filtering, VPN, etc. I block Internet for him, he tries to break out of the cage (for now I'm ...
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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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OS X shows a MAC address different from my router’s [closed]

My router’s hardware MAC address (as indicated on the label on the back) is different from the MAC address I noticed on my MacBook. I had a look at the IPv6 settings and it shows a different router ...
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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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Multiple Devices, One Ethernet Jack, MAC Filtering

So, in my college dorm, theres wifi for the students as well as a single ethernet jack. Problem is, this ethernet jack is MAC filtered, and can only allow one mac address to use it at a time. This can ...
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A Utility to Spoof MAC addresses in OS X?

Is there a menu bar style tool, or maybe a GUI program that would allow me to switch / spoof MAC addresses for the Airport / WiFi connection on OS X?
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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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How to block the MAC Address in Huawei HG532e wireless router?

I am using a Huawei HG532e wireless router and I would like to block some of the smart phones of some of the workers who are no more working with us. Please help me to do this work as early as ...
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Inverse ARP lookup

How can I do an inverse ARP lookup in Windows and/or Linux? Say that I have the MAC address of wireless access point which is up and running in the network, but I forgot it's IP address?
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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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Devices with user re-writable MAC addresses [closed]

I'm looking for routers, cell phones, Internet sticks etc. that have user modifiable MAC addresses. Does anyone know how to spot them?? Also how to write the MAC address.. I've heard Linux is a good ...
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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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A bridge builds up its routing table by inspecting incoming packets?

Which of the following is NOT true with respect to a transparent bridge and a router? Both bridge and router selectively forward data packets A bridge uses IP addresses while a router uses MAC ...
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561 views

Finding MAC addresses of devices previously plugged into a computer

Is it possible to bring up a list of all the MAC Addresses of devices previously plugged into a computer, such as phones and mobile hotspots? I don't need any other information, just the MACs to match-...
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how to get the passkey to a wifi network

So, here's my attempt at hacking my home network using wifite: http://i1381.photobucket.com/albums/ah219/theabominablefox/firstHomeWifiAttempt_zpsiwdu16ap.png Yes I do have permission from my own ...
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How to find MAC address of a mobile phone which is in range of my Wi-Fi network but not connected

It is clear that some big malls are tracking some Wi-Fi enabled mobile phones. How can it been done? I have the similar issue: How to get the MAC address of a mobile phone when it comes near to my ...
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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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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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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 ...