IPs change constantly, MAC is per network device (a laptop with Wi-Fi and wired has two different MACs), so you would need to be able to have a list of MACs and MACs can be easily spoofed so thats a whole other set of issues.
Another interesting thought about MACs and any other chip-based IDs that get floated in the future. Spoofing aside, while MACs are supposed to be unique, there are a lot of dodgy mfgs that just burn the same MAC or set of MACs into entire batches of chips at a time. If a new standard was announced, it would be interesting to see the results of orgs trying to take advantage of the ID while shady mfgs continue to not give a flip.
MACs are “supposed” to be unique identifiers baked into the network chip, so it’s partially a matter of how hard they work to make any other IDs spoof proof.
Removed by mod
IPs change constantly, MAC is per network device (a laptop with Wi-Fi and wired has two different MACs), so you would need to be able to have a list of MACs and MACs can be easily spoofed so thats a whole other set of issues.
Removed by mod
Another interesting thought about MACs and any other chip-based IDs that get floated in the future. Spoofing aside, while MACs are supposed to be unique, there are a lot of dodgy mfgs that just burn the same MAC or set of MACs into entire batches of chips at a time. If a new standard was announced, it would be interesting to see the results of orgs trying to take advantage of the ID while shady mfgs continue to not give a flip.
Removed by mod
The vast majority of ethernet devices can be set to use any arbitrary mac address
MACs are “supposed” to be unique identifiers baked into the network chip, so it’s partially a matter of how hard they work to make any other IDs spoof proof.