On Tue, 2022-03-22 at 00:34 -0600, Robin Laing wrote:
In my network, devices are assigned DHCP IP address according to their MAC address.
Mine too, virtually all DHCP servers do (even if not providing fixed static addresses, but just nearly always giving the same addresses), that's always been the way DHCP associated clients with leases.
And there are some further client ID parameters that *can* be taken into consideration. You also need to remember that some clients automatically randomise their MAC for so-called privacy (*) reasons, that can make DHCP serving a bit of a headache.
* Random network addresses may anonymise you slightly, but your web- browser is going to fingerprint you very badly.
My wireless access point uses mac filtering.
That I don't bother with. It can't stop cracking, they just listen and clone MACs to find one that is allowed (there are no-skill-required programs that can do that for malcontent people). It's the same false belief of hiding access point SSIDs.
And it makes life difficult when you have to manually authorise everything that should be allowed to connect. Not to mention the MAC randomising shenanigans I just mentioned making it near impossible to use your own network if you use MAC filtering. It was an annoying feature my phone added in one update that took me a while to find out why its IP kept changing.