I think that is a randomized address. Look at the second character in a MAC address, if it is a 2, 6, A, or E it is a randomized address. Per https://www.mist.com/get-to-know-mac-address-randomization-in-2020/ *Brandon Svec*
On Fri, Jul 8, 2022 at 9:24 AM JoeSox <joe...@gmail.com> wrote: > Hello, > > I have something I have never seen before and was wondering if anyone in > the community has seen something like this? > > So some active directory accounts are getting locked intermittently and I > had to do some sniffing and I have an IP address showing up in a non-used > subnet 10.1.2.x > And it shows an unrecognized MAC address. This virtual machine is in a > Nutanix environment. > > I am trying to figure this out without bringing in paid outside help. > Thanks in advance for any responses. > c2:ea:e4:c5:57:e6 > is the MAC in question. I don't fully understand this request. 10.1.2.18 > is the mystery ip that doesn't ping, 10.1.3.9 is the DC. > AD Audit provides nonexistent machines making the requests and even blank. > "User account 'Administrator' was locked from computer ''." > > [image: image.png] > > -- > Thank You, > Joe >
