Two Mac addresses from the FTD 2110 MGMT interface

[willpkk01]

Hello, 

I deployed a new FTD 2110 on our company network and I'm seeing two different mac addresses on the switch port that the MGMT interface is connected to. I know that the one mac address is associated with the actual MGMT interface, but can anyone tell me what the other mac address might be? I've looked at a few Linux commands from "expert" and the standard commands done through the FTD operating system, but not luck. If anyone can point me in the right direction i would great appreciate it! 

[MHM Cisco World]

Show network <- check this in cli of ftd 

MHM

[willpkk01]

Hello! Thank you for the reply. I used that command to get the main MGMT interface mac, but there's some other either auto generated mac or a different interfaces mac coming through that same interface. 

[MHM Cisco World]

Can you share both MAC 

MHM

[Rob Ingram]

@willpkk01 the Diagnostic and Management interfaces share a physical port, so the second MAC is the diagnostic interface MAC?

[willpkk01]

So I did a "show interface diagnostic" and its not that interface either. It's so strange. 

[Marvin Rhoads]

I believe it may be there for use when the appliance is running with ASA in platform mode. In that use case, you can separately log into the fxos directly via its configured IP address.

FTD runs in appliance mode and you access fxos via "connect fxos" from the cli (rather than using a direct login via ssh).