How to find the mac ad of the connected devices to the cisco Router?

[annahernandez99]

i have a cisco asa 5505 and i am controlling it with ASDM. Is there any possibilities to find the connected device's mac add? Becuase, i wanna find and block this user, he or she has a huge network crash while working. thanks for your nice and gently tips. cheers

[Georg Pauwen]

Hello,

not sure if and how to do this in ASDM, but the CLI command is:

show mac-address-table interface

[balaji.bandi]

Unless the user connected directly to ASA you will not able to get MAC address,

Hope you have access switches where the user device connected, get the IP address from ASA which you suspecting.

do lookup at switch side. ( show ip arp and show mac address-table | in mac address - is this what are you looking?)