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

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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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242 views

Using a laptop with multiple static-ip routers

I use my Windows XP laptop with Wi-Fi at school, home, work and by my parents. Each of these has a different setup (one DHCP and the other three use different static IPs). Is there a way to attach a ...
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3answers
5k views

How to bind IP address to MAC address in Windows XP?

I want to bind IP address to MAC address on my computer, how to do it?
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27k views

Is my MAC address public when browsing the Internet? [duplicate]

Possible Duplicate: Is your MAC address revealed when you hit up a website? Can anybody see my MAC address when I'm on the Internet? Also, where can I check my MAC address?
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3k views

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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471 views

Find some access point IP Adress from Access point Mac address on the internet?

Is there any router or database which can we access to put some access point or router MAC Address and get IP address? Or i just think the mac address changes when a packet leave a router on the ...
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Accessing the physical IP address of a computer on my network that is no longer available

I'm trying to find out how to access the IP address + MAC code of a computer (macbook pro) that I once had on my network at home. Does terminal store the 'connected' or 'linked' computer ID or IP of ...
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4k views

What's the MAC Address of my Ethernet adapter?

I have purchased a Dell Inspiron N5010 (with Windows 7). It works all fine but I need to know the MAC Address of the Ethernet adapter. I have tried IPconfig /all, but it does not show my Ethernet ...
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How to use the same internet connection over two machines with different MAC addresses?

My service provider does some binding to my Ethernet MAC address. So, I am not able to use the connection on a second machine that I need to use (I need to use both the machines, though not at the ...
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Finding the external (PPPoE, WAN) MAC address of an ADSL router

My ISP is Orange Internet, I have recently ditched my crummy "livebox" and moved to a more stable BT Business Hub with the firmware flashed back to the original SingTel ROM. The thing works great ...
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6answers
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How does a router find the MAC address of next hop router?

I know that in an Ethernet LAN, the ARP protocol is used to get a MAC address from an IP address. How does my router get the MAC address of another router on an external network if ARP is not possible?...
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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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How to permanently change (spoof) the MAC address in Kali Linux (Debian)

I use the program 'macchanger' to change MAC address. However, I have to put down an interface (wlan0) and then invoke Macchanger and then bring the interface up again. I would like to have a way I ...
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Is MAC compulsary for a NIC?

Is it possible for a NIC/ network adapter to communicate with internet if it is not assigned a MAC address ?
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Is there any harm in changing the mac address of my LAN adapter?

My internet provider has done static binding to thee MAC address of my adapter. Now I need to use the same internet connection on another machine also. So, I figure that one way of doing that is to ...
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3answers
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Change MAC Address on Windows 7 - BootCamp (Macintosh)

I need to change my MAC address on my Windows 7 partition on my Macbook Pro. I have tried changing the registry value on my Windows to spoof my address, but that didn't work. I have also tried to use ...
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7k views

How should I reserve IP addresses for my home LAN?

My Netgear router supports MAC-based IP reservation, and I'm setting up my very first home LAN where I want multiple Ubuntu servers to be given dedicated IP addresses. This is a consumer-grade router, ...
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481 views

What does `ec` mean in `HWaddr ec`?

When I do ifconfig on my laptop I get HWaddr ec and than an address, this is next to eth0. Note that my IPv4 address only appears next to eth1 so I assume my laptop uses the eth1 network interface. I ...
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188 views

Is the MAC address used on the DLL layer unique throughout the world for a device, lets say this computer?

Is the MAC address used on the DLL layer unique throughout the world for a device, lets say this computer?
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157 views

How do I find the MAC Address of every networking of my notebook in win 8?

I tried getmac command in command prompt. What are those '3' devices of which the MAC Address is represented? I Also Tried this Command: ipconfig /all Now, What are these "5" Mac ...
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430 views

Prevent traffic to mac address using ebtables

I have an interface on a remote host: 2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:05:68:02:68:dd brd ff:ff:ff:ff:ff:ff inet 192.168.3.1/24 ...
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How to find the MAC address of access point that working on a roaming system

I’m working in very big oil and gas company. We have many many access points in our offices, each access point broadcasts 3 SSID’s. The access points with roaming system. On the back of each access ...
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953 views

Send packet (frame) with different 'Sender's MAC'?

I was just studying the Network+ book where it explains the contents of a Frame using blocks to represent a set of bits. Moving onward, it states that the first 'block' is the Recipient's MAC address. ...
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Use multiple devices with an ISP with captive portal

Here are the facts that will help you understand the scenario: The ISP provides wireless broadband. It gives a device(installed on the roof) from which a LAN wires runs to your computer. The ISP ...
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90 views

Is it possible to sync specific router settings across multiple routers?

I recently purchased a second Linksys wireless routers set up on the other side of my home and I am wondering if it is possible to somehow sync particular settings between the two? For instance what ...
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277 views

Layer 2 switching or Layer 3 forwarding?

I have a wireless router installed at my home (provided by ISP). Scenario: Router IP: 192.168.1.1 My Machine IP (X): 192.168.1.2 IP of machine Y: 192.168.1.3 Now when I ping Y from my ...
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322 views

Discover MAC address of wired computer

I would like to know the MAC address of a running computer which is directly connected to my own laptop with a wired cable (ethernet to ethernet). It has no DHCP server on it and I don't know its ...
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How do I get my original MAC address?

I am using Windows 7 Home Basic. My laptop's MAC address was changed by a hardware support person to facilitate my Internet connection. How can I get my original MAC address.
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345 views

How do I find the MAC address in Mac OS 9?

I've never used a Mac in my life – now I have to find out the MAC address of Mac OS 9. I can't even find terminal or console there.
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995 views

Discover MAC address

I've to setup a bunch of servers, and I need to discover their MAC addresses with the following setup: MacBookPro >----------< Server The Macbook Pro is directly connected (not behind a ...
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1answer
230 views

What will happen if two computers having same MAC address and same IP address in the network?

What will happen if two computers on the network are having same MAC and IP address? Assume 20 to 25 computers are present in the network and they are accessing the internet through single gateway. Is ...
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163 views

Configure MAC filter for H5004NK router

I would like to block my neighbor's connection to our WiFi. How do I fill out this form?
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Port restrictions and MACs

I have a question regarding connections within a university setting. In my room I have two network points. One for my pc and one for my voip phone. Each network port is restricted to one mac address, ...
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Defaultgateway do not detect MAC-addresses

Today I was experimenting a bit with the user interface of my cisco router that is the default gateway of my LAN-network. I have two computers and a couple of smartphones atached to it trought WIFI ...
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How Does a Router Map Inbound Traffic to LAN Nodes? [duplicate]

Imagine a home network of several computers connected via router to an ISP. Computer A wants to request a webpage from a remote website, 10.234.12.8. The address is not in its ARP cache, so it ...
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131 views

IPV6 and MAC discovery

Is there a way to get the MAC and IPV6 Global link address for the network, just as ARP does with IPV4 in Ubuntu. I tried to retrieve IPV6(Link Local Address) using THC-IPV6 tool. But retrieving MAC ...
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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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arp command returning weird info for Apple routers

When I use arp -a command, my two Apple routers (Extreme and Express) return weird results, unlike my other results. The IP address isn't a LAN IP address like the other results and the MAC address ...
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Planetlab and scapy: MAC address to reach destination not found

Using the minimal Fedora 14 distribution provided in PlanetLab, I'm forging packets through Scapy and sending them with tcpreplay. I thought I had installed all the necessary packages to run scapy ...
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What kind of hardware information is accessible for computers on a network?

If a computer is connected to say, your job's network what kind of hardware information can be retrieved. More specifically can an administrator get a list of all the CPU's and there serial numbers/...
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545 views

Spoofing MAC address to match other device [duplicate]

Possible Duplicate: What happens when two PCs have the same MAC adress? At my school, there is a WiFi network where you can register up to one computer or phone. I, however, wish to connect my ...
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62 views

MAC filtering, How to auto log in to a webpage?

My building provides internet access. But before you can use it, you need to browse to a website. From there you are redirected to the building's router which asks you for a user name and password, ...
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Why does my MAC address reset after reconnecting?

I use Ubuntu 12. I'm changing my MAC address with ifconfig wlan0 hw ether xx:xx:xx:xx:xx:xx, which works. However when I restart my connection, my computer resets the MAC address to my original MAC ...
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Blocking or Disabling Rogue Routers

We have a medium sized network and from time to time something bad happens. Once it was a router configured to assign IPs via DHCP that did not match our network mask, thus making all clients unable ...
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Firewall rule in Windows 7 that allows MAC Address Proxy Authentication

I'm using Windows 7 Ultimate and I', using Windows Firewall with Advanced Security. My proxy server uses MAC Address as it's authentication scheme. When the firewall is in disabled state, I can ...
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Is is possible to change MAC address of a WiMAX USB adapter?

Wondering if it is possible to change the MAC address of a WiMAX USB adapter (read WiMAX, not Wi-Fi) manufactured by Motorola, ZTE, Intel etc. I've tried a few tools that did changed the MAC address ...
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61 views

Not able to spoof Mac Address in Kali Linux

I tried the following to spoof my mac address:- ifconfig wlan0 down macchanger -a wlan0 ifconfig wlan0 up (Even tried to stop and start network-manager with the above command) I also changed ...
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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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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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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 ...