MAC Address Filtering Flashcards

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What does MAC stand for in networking?

Media Access Control.

Which address does MAC address filtering use to identify a device?

The device’s MAC address, a unique hardware address.

What is MAC address filtering?

A router rule that allows or blocks devices by their MAC addresses.

Where is MAC address filtering usually set up?

On a wireless access point or home router.

How does MAC filtering decide if a device can join?

It checks the device’s MAC address against a saved list.

What is an allow list in MAC filtering?

A list of approved MAC addresses. Only these devices can connect.

What is a deny list in MAC filtering?

A list of blocked MAC addresses. These devices cannot connect.

What does the address used by MAC filtering look like?

Six pairs of hex digits, e.g. A1:B2:C3:D4:E5:F6.

Why is MAC address filtering not strong security on its own?

MAC addresses can be faked (spoofed). It does not encrypt data.

Does MAC filtering work over the internet?

No. It only controls access on the local network (LAN).

What are the basic steps to add a device with MAC filtering?

Find its MAC address, log in to the router, add it to the allow list, save.

Why can MAC filtering be hard to manage on big networks?

Every device must be added and updated by hand, which takes time.