Can anyone give me any info on this? It is showing as active on my network. No machines I have match it's mac addrs. which is, 00:18:8B:8A:3E:1B. The name is Mindless-PC. Thanks for your time.
well.. no, as nobody here has access to your network ;-)
This seems to be a fake address, as there is no vendor code 10:18:8b.
I guess one of your users is playing ARP spoofing games, for whatever reason (Sniffing, Man in the middle, etc.).
If you have managed switches, you can figure the port where that system is connected to the switch (how to do this depends on the vendor - please read the manual - look for 'mac address' list or similar). Then 'follow the cable' to the system.
If you operate a WLAN, please check that as well (weak passwords or other vulnerabilities).
The title (Dell ESG PCBA Test) (finally) made me curious :-)
Now, I believe there is a typo in the MAC address. Instead of 10:18:8B it should read: 00:18:8B, which is indeed a MAC prefix used by DELL. Unfortunately there is not much useful information out there about those MAC addresses and why/where they are used. Strange thing. Anyway, please try to find the switch port and then follow the cable. Maybe it belongs to a Dell DRAC board or something.
That MAC prefix is mentioned in the following document, in the context of a Blade Server Chassis.
As the MAC address of the BMC interface.
Conclusion: That MAC address seems to be related to DRAC/BMC.