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- MAC addresses are used to identify which device is which on your local network so that data gets sent to your computer and not your roommate's smartphone.
www.howtogeek.com/764868/what-is-a-mac-address-and-how-does-it-work/
People also ask
Why do I need a MAC address?
Do I need a MAC address when talking to a computer?
Why do we use MAC address instead of IP address?
Do I need a MAC address if I have an IP address?
Why do wireless access points use MAC addresses?
Is it possible to use Ethernet without a MAC address?
Feb 10, 2023 · A MAC address (although it can be spoofed) is the only way to uniquely address a device or network interface. An IP address (I assume you're talking about IPv4) is not unique, can be randomly assigned to other interfaces and needs to be aligned to the network the device is connected to.
Jul 31, 2015 · MAC is required for a couple of reasons, the biggest of which is that IP addresses are not (necessarily) unique. Before a computer has an IP address, it typically requests one on the network by using a service called DHCP. At this point, the computer sends a broadcast message to the entire network saying “Hey, I don't have an IP address.
Mar 19, 2018 · The IP address and MAC address serve different (but crucial) purposes: The MAC address gets a frame from one NIC to the next. The IP address gets a packet from one Computer to the Server. So given the following: Source Computer <---> RouterA <---> RouterB <---> Destination Server
Jun 18, 2016 · MAC is Media Access Control which provides physical connectivity only. IP Address provides Host or Network interface Identification and Location addressing.
Feb 20, 2021 · MAC address is a fixed address to the network card. The network card's designer put a unique mac address into the network card. So, the best thing is to store the MAC address in the routing table, not IP address.
Sep 3, 2013 · Wireless access points often use MAC addresses for access control. They only allow access for known devices (MAC address is unique and identifies devices) with the correct passphrase. DHCP servers use the MAC address to identify devices and give some devices fixed IP addresses.
Jan 23, 2019 · What is the reason behind why a device (connected to an Ethernet network) needs to have two identifiers? This post is my attempt to answer that question. IP Addresses and MAC addresses were developed around the same time (circa 1974) but were answers to two, very different problems.
