About MAC Address Lookup Tool

MAC Address is the acronym for media access control address. MAC addresses are used to uniquely identify network interfaces for communication at the physical layer of the network. MAC addresses are usually embedded into the network card. A MAC address is like a serial number of a phone while the IP address is like the phone number. Launched by sniffing a network for MAC addresses of clients who are actively associated with a switch port and re-using one of those addresses. By listening to the traffic on the network, a malicious user can intercept and use a legit user's MAC address to receive all the traffic destined for that user. MAC Address is the acronym for media access control address. MAC addresses are used to uniquely identify network interfaces for communication at the physical layer of the network. MAC addresses are usually embedded into the network card. A MAC address is like a serial number of a phone while the IP address is like the phone number.

MAC Address Lookup Tool searches your MAC Address or OUI in mac address vendor database. The MAC Address vendor database consists of a list of mac addresses of all devices manufactured till date. Finding the mac address from this database tells us which manufacturer originally manufactured this device and what is the prefix, postfix of a given mac address, moreover it tells us what country was this device manufactured. All this information is useful if you want to verify the generated mac address with the original vendor of this device in OUI vendor database.

Sniff For Mac Addresses By Name

Mac address reader

What is a MAC Address?

MAC Address or media access control address is a unique ID assigned to network interface cards (NICs). It is also known as a physical or hardware address. It identifies the hardware manufacturer and is used for network communication between devices in a network segment. MAC Address usually consists of six groups of two hexadecimal digits.

The network adapters or network interface cards always come with a MAC address which is fed into hardware, usually in read-only memory (ROM), or BIOS system. The physical address is stored into the NIC by its manufacturer, that is why this address is also called a burned-in address (BIA) or ethernet hardware address.

There are several NIC manufacturers; some well-known of them are Dell, Cisco, Belkin. The first three sets of two hexadecimal numbers in a MAC Address identifies the card manufacturer, and this number is called OUI (organizationally unique identifier). OUI is always the same for NICs manufactured by the same company. For example, let's say a network card manufactured by dell has a physical address: 00-14-22-04-25-37, in this address, 00-14-22 is the OUI of Dell which identifies that the device is by Dell. It may be interesting for you to know that all the OUIs are registered and assigned to the manufacturers by IEEE.

How to Find MAC Address?

To find MAC Address, see the instructions given below for popular operating systems.

How to Find MAC Address in Windows?

  • Go to Command Prompt
    • Press Windows + R
    • Type cmd and press Enter

      • OR

    • Click Start Button
    • Type cmd and press Enter
  • In Command Prompt, type ipconfig/all and press Enter
  • And locate for the 'Physical Address' or 'HWaddr' field. The Physical Address should be in format M:M:M:S:S:S. For example: 00-14-22-04-25-37

How to Find MAC Address in MacOS?

  • Click on Apple Menu (usually on top left corner), and click System Preferences
  • In System Preferences, click View menu and select Network
  • In the Network window that just opened, click the Wi-Fi, Ethernet, or Airport icon on left.
  • Now click Advanced on bottom right.
  • From the upper menu, click Hardware, and look for MAC Address field.
  • Your MAC Address should be in the format: M:M:M:S:S:S. For example: 00-14-22-04-25-37
Sniff

How to Find MAC Address in Linux or Unix?

  • Perform the following as super user (or with appropriate permissions)
    • Type ifconfig -a
    • Look for 'eth0'. This is your default ethernet adapter
    • Now locate the field 'HWaddr'. The value displayed next to it is your MAC Address.
    • Your MAC Address should be in this format: 00-14-22-04-25-37

Free Mac Address Scanner

How to Find MAC Address in iOS?

  • Open Settings app.
  • Tap on General option in settings.
  • Now tap on About option.
  • Locate the field Wi-Fi Address
  • The value against this field is your MAC Address
  • Your MAC Address should be in the format: M:M:M:S:S:S. For example: 00-14-22-04-25-37
Sniff For Mac Addresses

Finding a MAC Address in Android

  • Method 1:
    • Open Settings app.
    • Select the option Wireless & Networks
    • Select Wi-Fi Settings
    • Select Advanced, and your wireless network card's MAC Address should appear here.
  • Method 2:
    • Open Settings app.
    • Select the option About Device
    • Tap on the option Hardware Info
    • Select Advanced, and your wireless network card's MAC Address should appear here.

If you are using a display filter of eth.addr xx:xx:xx:xx:xx:xx and you are not seeing any information being displayed/sniffed, then the traffic for that MAC address is not passing through the port you're sniffing on.

Mac Address Discovery Tool

You can use a list for your MAC's in one display filter, but not a range, unless you switch to IP's instead of MAC's. For instance, tshark -i 1 -R 'eth.addr eq xx:xx:xx:xx:xx:xx or eth.addr eq xx:xx:xx:xx:xx:xx'

If you are trying to trace MAC's on the switch you are also connected to, then you'll want to sniff from a port which is spanned/mirrored to the port which has inbound/outbound traffic of that switch, so that you will see all the traffic coming in and out of the switch.
(I'm assuming the traffic you are looking for is traveling to a destination on another switch, outside the network, or at least to your gateway).

By specifying the MAC address filter, eth.addr eq xx:xx:xx:xx:xx:xx you are filtering for all traffic to and from that associated MAC address. Like the MAC address, The LLC logical link control protocol is also layer 2, but is upper sublayer of Data Link Layer and won't affect the ability to capture the traffic unless you specify llc as a filter and there isn't any llc traffic, then you would get the blank screen.

Sniff For Mac Addresses Software

Hope this is helpful,John





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