Mystery MAC address
saku at ytti.fi
Fri Jul 8 17:12:28 UTC 2022
Technically the right most is multicast bit, the 2nd right most is locally
assigned, it doesn't imply randomisation, it is unknowable how it was
On Fri, 8 Jul 2022 at 20:07, Brandon Svec via NANOG <nanog at nanog.org> wrote:
> 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
> *Brandon Svec*
> On Fri, Jul 8, 2022 at 9:24 AM JoeSox <joesox at gmail.com> wrote:
>> 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.
>> 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,
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the NANOG