how to find mac addresses


  1. Posts : 516
    win10
       #1

    how to find mac addresses


    I have win10 latest release and a Telstra router. I want to use 'parental control' and limit the access hours of some computers on our home LAN. But the software requires I supply the MAC address of the devices I want to control. But the router software does not display MAC addresses, only IP addresses.
    How can I get around this?
      My Computer


  2. Posts : 8,057
    windows 10
       #2

    You can get it off each pc via network adapter settings
      My Computer


  3. Posts : 68,668
    64-bit Windows 11 Pro for Workstations
       #3

    In addition, the tutorial below can help show you how to get the MAC address of a Windows PC.

    Find MAC Address of Windows 10 PC
      My Computers


  4. Posts : 33
    Windows 10 x64
       #4

    Open a command prompt and type:

    arp -a

    This will list all the IP and hardware (MAC) addresses that the PC knows of, which should be all the machines on the LAN.
      My Computer


  5. Posts : 516
    win10
    Thread Starter
       #5

    Thanks all for that.
    I can't approach each machine for the boys may bring in other machines - notebooks, say - and I want to anticipate that.
    Maybe I should find a setting that blocks everything except my machine and whatever is essential, if anything.
    So the arp command is going to be very useful. thank you.


    Thanks again.

    p.s. Ran across a mystery. The router lists one device at 192.168.0.233 with the name 'galaxy a20' which is a smartphone I think? But arp -a doesn't find it so I can't get a mac address for it. Any ideas on that?
    Last edited by abrogard; 16 Jul 2021 at 19:34.
      My Computer


  6. Posts : 33
    Windows 10 x64
       #6

    The PC you checked from has probably never communicated with the Galaxy A20, which would explain why it doesn't appear in the ARP table.

    If you want to know it's MAC address, you should be able to ping it in order to add it to the ARP table. So open a command prompt and type:

    ping 192.168.0.233

    then try arp -a again.

    I can't think of an obvious way to achieve what you want; to restrict the Internet hours of unknown devices based on their MAC addresses. Your router ought to be able to stop unknown devices connecting to the network altogether though.
      My Computer


 

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