Locally administered address windows 10 not present

#Locally administered address windows 10 not present driver#
#Locally administered address windows 10 not present software#

Even in Windows there's techniques that can let you achieve this, certainly with some NIC brands. You have to assume it is possible that any station changes their MAC (which is difficult to tell between a new station appearing on the LAN) legitimately or as a consequence of malicious activity. However, it cannot be relied upon as a security feature since, as you mentioned, MAC addresses can be changed in some cases. The uniqueness of MAC addresses is a consequence (requirement?) of the Ethernet technology whereby all hosts within a local network must have a unique address for the network to work.

#Locally administered address windows 10 not present software#

Some software and manufacturers though rely on MAC filtering a lot more than they should including in their marketing material. There's value to observing MAC addresses as relatively static (like MAC white lists, etc), but this is marginal protection, since it can be trivially defeated. Or, perhaps, is this merely just to prevent someone from spoofing a device as some legitimate company's network communications product? (to their ISP)

#Locally administered address windows 10 not present driver#

I believe ultimately it is a security related decision (a weak one as I mentioned) and a way of simplifying driver code. Whilst it's not expected to happen frequently, it can happen and you can't avoid it. Marginal implications, but only if you consider changing a MAC address to be a security problem. However, MicroSoft probably cannot see a legitimate case where such a change is needed, so you are probably hacking.Р”В«ut then again, unless someone who made the decision at MS answers, we'l never know.Р”В«ut, it seems Windows does not allow modifying mac addresses to universal ones (i.e., UAA's) (.) What is the reason for this restriction? Are there security implications if this was not the case? Why should you need to change it to an UAA then? Windows probably would conclude that this is an error that must be prevented.Р”Р‡or many of these actions, there is a 'are you sure'-dialog. So, for a normal end user, or even a company, if you use your MACs, you would only use LAAs, by fear of collisions. If you get a collision, it's your problem. LAAs are meant to be locally administered. You should never get a second device with the same MAC no collisions. You will have to enter a 6 pair combination of letters or/and words like this: 3A-2E-FB-4C-55-B3. Make sure the value radio button is selected. They are (more or less) guaranteed to be unique. Go to the Advanced tab and select Locally Administered Address. Although you can, you should never use these yourself, unless you are a vendor.

UAAs get the MAC-ID from the vendor it contains the vendor's OUI. However, as you said, there are two types of MAC's: a universally-administered address (UAA) and a locally-administered address (LAA).

It is difficult to answer this question, because we don't have any insights on the way of thought of those at MicroSoft.