Q&A

Can you be MAC address banned?

Can you be MAC address banned?

In short, the answer is no, you usually can’t block based on MAC address. And if you could, it would be useless.

Does manufacturer set MAC address?

MAC addresses are primarily assigned by device manufacturers, and are therefore often referred to as the burned-in address, or as an Ethernet hardware address, hardware address, or physical address. The address typically includes a manufacturer’s organizationally unique identifier (OUI).

Does every network interface card has its own unique MAC address?

Every Network Interface Card (NIC) is one device and has its own MAC address. Each network interface, whether wired or wireless, is a unique device and as such will have a unique MAC address.

What can you do with someones MAC address?

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Two main things:

  • Impersonate another computer on a network, usually a WiFi one. This is commonly used to bypass MAC filtering, connect for free to paid hotspots, perform some WiFi cracking techniques, or perform various man in the middle techniques.
  • Track a computer over time across different sessions and networks.

How do I restrict MAC address?

Select the MAC Access Control tab.

  1. Select the Restrict access by MAC address check box.
  2. Click Add. The Add a MAC address window appears.
  3. Type the MAC address of the computer or device to give it access to the specified interface.
  4. (Optional) Type a Name for the computer or device to identify it in the list.
  5. Click OK.

Can website block my MAC address?

No, a remote site will only learn what public IP address you’re using, not the MAC address of your device, unless you’re using IPv6 with a EUI-64 address.

How do I change my MAC to an IP address?

Here is the MAC to IP address conversion process step by step: take the mac address: for example 52:74:f2:b1:a8:7f. throw ff:fe in the middle: 52:74:f2:ff:fe:b1:a8:7f. reformat to IPv6 notation 5274:f2ff:feb1:a87f. convert the first octet from hexadecimal to binary: 52 -> 01010010.

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Can 2 devices have the same MAC address?

If two devices have the same MAC Address (which occurs more often than network administrators would like), neither computer can communicate properly. On an Ethernet LAN, this will cause a high number of collisions. Duplicate MAC Addresses on the same LAN are a problem.

Can two devices have the same IP?

An IP address conflict occurs when two or more devices on the same network are assigned the same IP address. Because of this setup, no two devices can have the same IP address on one network. If this happens, the network becomes confused by the duplicate IP addresses and can’t use them correctly.

Can the MAC address of a network interface card be changed?

Yes, but it is not a question of can it change, but more an absolute fact that it will change. Each Network Interface Card (NIC), no matter if it is Ethernet, wireless, or Bluetooth, will have a unique MAC address that separates it from every other network card in the world.

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Can the MAC address of my laptop change if I Change NIC?

If you change out your wireless NIC, you will then as a result, be changing the wireless MAC address of your laptop. Your Ethernet MAC address will remain unchanged as it is usually on a separate card within your machine. Originally Answered: Can the Mac address of my laptop change if I change the WiFi card?

Does changing the MAC address on the SD card affect security?

Yes, the hardware manufacturer sets the MAC so, replacing any Layer 1,-2 device will result in the MAC changing on the card. If you set a spoofed address then it shouldn’t affect any Layer 2 security but, you may need to reset it after the new card is installed. Thanks for the A2A.

What is MAC address filtering and how does it work?

MAC Address Filtering: Networks can use MAC address filtering, only allowing devices with specific MAC addresses to connect to a network. This isn’t a great security tool because people can spoof their MAC addresses.